Showing posts with label Atlas. Show all posts
Showing posts with label Atlas. Show all posts

Thursday, November 18, 2010

QGP Research Advances

“We can say that the system definitely flows like a liquid,” says Harris.


One of the first lead-ion collisions in the LHC as recorded by the ATLAS experiment on November 8, 2010. Image courtesy CERN.

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Scientists from the ALICE experiment at CERN’s Large Hadron Collider have publicly revealed the first measurements from the world’s highest energy heavy-ion collisions. In two papers posted today to the arXiv.org website, the collaboration describes two characteristics of the collisions: the number of particles produced from the most head-on collisions; and, for more glancing blows, the flow of the system of two colliding nuclei.
Both measurements serve to rule out some theories about how the universe behaves at its most fundamental, despite being based on a relatively small number of collisions collected in the first few days of LHC running with lead-ion beams.
In the first measurement, scientists counted the charged particles that were produced from a few thousand of the most central lead-ion collisions—those where the lead nuclei hit each other head-on. The result showed that about 18,000 particles are produced from collisions of lead ions, which is about 2.2 times more particles than produced in similar collisions of gold ions at Brookhaven National Laboratory’s Relativistic Heavy Ion Collider.
See: ALICE experiment announces first results from LHC’s lead-ion collisions

Tuesday, February 16, 2010

Article From New York Times and More




Brookhaven National Laboratory

HOT A computer rendition of 4-trillion-degree Celsius quark-gluon plasma created in a demonstration of what scientists suspect shaped cosmic history.

In Brookhaven Collider, Scientists Briefly Break a Law of Nature

The Brookhaven scientists and their colleagues discussed their latest results from RHIC in talks and a news conference at a meeting of the American Physical Society Monday in Washington, and in a pair of papers submitted to Physical Review Letters. “This is a view of what the world was like at 2 microseconds,” said Jack Sandweiss of Yale, a member of the Brookhaven team, calling it, “a seething cauldron.”

Among other things, the group announced it had succeeded in measuring the temperature of the quark-gluon plasma as 4 trillion degrees Celsius, “by far the hottest matter ever made,” Dr. Vigdor said. That is 250,000 times hotter than the center of the Sun and well above the temperature at which theorists calculate that protons and neutrons should melt, but the quark-gluon plasma does not act the way theorists had predicted.

Instead of behaving like a perfect gas, in which every quark goes its own way independent of the others, the plasma seemed to act like a liquid. “It was a very big surprise,” Dr. Vigdor said, when it was discovered in 2005. Since then, however, theorists have revisited their calculations and found that the quark soup can be either a liquid or a gas, depending on the temperature, he explained. “This is not your father’s quark-gluon plasma,” said Barbara V. Jacak, of the State University at Stony Brook, speaking for the team that made the new measurements.

It is now thought that the plasma would have to be a million times more energetic to become a perfect gas. That is beyond the reach of any conceivable laboratory experiment, but the experiments colliding lead nuclei in the Large Hadron Collider outside Geneva next winter should reach energies high enough to see some evolution from a liquid to a gas.
See more at above link.

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Violating Parity with Quarks and Gluons
by Sean Carroll of Cosmic Variance
This new result from RHIC doesn’t change that state of affairs, but shows how quarks and gluons can violate parity spontaneously if they are in the right environment — namely, a hot plasma with a magnetic field.

So, okay, no new laws of physics. Just a much better understanding of how the existing ones work! Which is most of what science does, after all
.

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Quark–gluon plasma

From Wikipedia, the free encyclopedia

A QGP is formed at the collision point of two relativistically accelerated gold ions in the center of the STAR detector at the relativistic heavy ion collider at the Brookhaven national laboratory.


A quark-gluon plasma (QGP) or quark soup[1] is a phase of quantum chromodynamics (QCD) which exists at extremely high temperature and/or density. This phase consists of (almost) free quarks and gluons, which are the basic building blocks of matter. Experiments at CERN's Super Proton Synchrotron (SPS) first tried to create the QGP in the 1980s and 1990s: the results led CERN to announce indirect evidence for a "new state of matter"[2] in 2000. Current experiments at Brookhaven National Laboratory's Relativistic Heavy Ion Collider (RHIC) are continuing this effort.[3] Three new experiments running on CERN's Large Hadron Collider (LHC), ALICE,[4] ATLAS and CMS, will continue studying properties of QGP.

Contents

  • 1 General introduction


    • 1.1 Why this is referred to as "plasma"
    • 1.2 How the QGP is studied theoretically
    • 1.3 How it is created in the lab
    • 1.4 How the QGP fits into the general scheme of physics
  • 2 Expected properties


    • 2.1 Thermodynamics
    • 2.2 Flow
    • 2.3 Excitation spectrum
  • 3 Experimental situation
  • 4 Formation of quark matter
  • 5 See also
  • 6 References
  • 7 External links

General introduction

The quark-gluon plasma contains quarks and gluons, just as normal (baryonic) matter does. The difference between these two phases of QCD is that in normal matter each quark either pairs up with an anti-quark to form a meson or joins with two other quarks to form a baryon (such as the proton and the neutron). In the QGP, by contrast, these mesons and baryons lose their identities and dissolve into a fluid of quarks and gluons.[5] In normal matter quarks are confined; in the QGP quarks are deconfined.
Although the experimental high temperatures and densities predicted as producing a quark-gluon plasma have been realized in the laboratory, the resulting matter does not behave as a quasi-ideal state of free quarks and gluons, but, rather, as an almost perfect dense fluid.[6] Actually the fact that the quark-gluon plasma will not yet be "free" at temperatures realized at present accelerators had been predicted already in 1984 [7] as a consequence of the remnant effects of confinement. 

Why this is referred to as "plasma"

A plasma is matter in which charges are screened due to the presence of other mobile charges; for example: Coulomb's Law is modified to yield a distance-dependent charge. In a QGP, the color charge of the quarks and gluons is screened. The QGP has other analogies with a normal plasma. There are also dissimilarities because the color charge is non-abelian, whereas the electric charge is abelian. Outside a finite volume of QGP the color electric field is not screened, so that volume of QGP must still be color-neutral. It will therefore, like a nucleus, have integer electric charge.

How the QGP is studied theoretically

One consequence of this difference is that the color charge is too large for perturbative computations which are the mainstay of QED. As a result, the main theoretical tools to explore the theory of the QGP is lattice gauge theory. The transition temperature (approximately 175 MeV) was first predicted by lattice gauge theory. Since then lattice gauge theory has been used to predict many other properties of this kind of matter. The AdS/CFT correspondence is a new interesting conjecture allowing insights in QGP.

How it is created in the lab

The QGP can be created by heating matter up to a temperature of 2×1012 kelvin, which amounts to 175 MeV per particle. This can be accomplished by colliding two large nuclei at high energy (note that 175 MeV is not the energy of the colliding beam). Lead and gold nuclei have been used for such collisions at CERN SPS and BNL RHIC, respectively. The nuclei are accelerated to ultrarelativistic speeds and slammed into each other while Lorentz contracted. They largely pass through each other, but a resulting hot volume called a fireball is created after the collision. Once created, this fireball is expected to expand under its own pressure, and cool while expanding. By carefully studying this flow, experimentalists hope to put the theory to test.

How the QGP fits into the general scheme of physics

QCD is one part of the modern theory of particle physics called the Standard Model. Other parts of this theory deal with electroweak interactions and neutrinos. The theory of electrodynamics has been tested and found correct to a few parts in a trillion. The theory of weak interactions has been tested and found correct to a few parts in a thousand. Perturbative aspects of QCD have been tested to a few percent. In contrast, non-perturbative aspects of QCD have barely been tested. The study of the QGP is part of this effort to consolidate the grand theory of particle physics.
The study of the QGP is also a testing ground for finite temperature field theory, a branch of theoretical physics which seeks to understand particle physics under conditions of high temperature. Such studies are important to understand the early evolution of our universe: the first hundred microseconds or so. While this may seem esoteric, this is crucial to the physics goals of a new generation of observations of the universe (WMAP and its successors). It is also of relevance to Grand Unification Theories or 'GUTS' which seek to unify the four fundamental forces of nature.

Expected properties

Thermodynamics

The cross-over temperature from the normal hadronic to the QGP phase is about 175 MeV, corresponding to an energy density of a little less than 1 GeV/fm3. For relativistic matter, pressure and temperature are not independent variables, so the equation of state is a relation between the energy density and the pressure. This has been found through lattice computations, and compared to both perturbation theory and string theory. This is still a matter of active research. Response functions such as the specific heat and various quark number susceptibilities are currently being computed.

Flow

The equation of state is an important input into the flow equations. The speed of sound is currently under investigation in lattice computations. The mean free path of quarks and gluons has been computed using perturbation theory as well as string theory. Lattice computations have been slower here, although the first computations of transport coefficients have recently been concluded. These indicate that the mean free time of quarks and gluons in the QGP may be comparable to the average interparticle spacing: hence the QGP is a liquid as far as its flow properties go. This is very much an active field of research, and these conclusions may evolve rapidly. The incorporation of dissipative phenomena into hydrodynamics is another recent development that is still in an active stage.

Excitation spectrum

Does the QGP really contain (almost) free quarks and gluons? The study of thermodynamic and flow properties would indicate that this is an over-simplification. Many ideas are currently being evolved and will be put to test in the near future. It has been hypothesized recently that some mesons built from heavy quarks (such as the charm quark) do not dissolve until the temperature reaches about 350 MeV. This has led to speculation that many other kinds of bound states may exist in the plasma. Some static properties of the plasma (similar to the Debye screening length) constrain the excitation spectrum.

Experimental situation

Those aspects of the QGP which are easiest to compute are not the ones which are the easiest to probe in experiments. While the balance of evidence points towards the QGP being the origin of the detailed properties of the fireball produced in the RHIC, this is the main barrier which prevents experimentalists from declaring a sighting of the QGP. For a summary see 2005 RHIC Assessment.
The important classes of experimental observations are

Formation of quark matter

In April 2005, formation of quark matter was tentatively confirmed by results obtained at Brookhaven National Laboratory's Relativistic Heavy Ion Collider (RHIC). The consensus of the four RHIC research groups was that they had created a quark-gluon liquid of very low viscosity. However, contrary to what was at that time still the widespread assumption, it is yet unknown from theoretical predictions whether the QCD "plasma", especially close to the transition temperature, should behave like a gas or liquid[8]. Authors favoring the weakly interacting interpretation derive their assumptions from the lattice QCD calculation, where the entropy density of quark-gluon plasma approaches the weakly interacting limit. However, since both energy density and correlation shows significant deviation from the weakly interacting limit, it has been pointed out by many authors that there is in fact no reason to assume a QCD "plasma" close to the transition point should be weakly interacting, like electromagnetic plasma (see, e.g., [9]).

See also

References


External links

Wednesday, December 16, 2009

So what about the Missing Energy?

"Death, so called, is but older matter dressed
In some new form. And in a varied vest,
From tenement to tenement though tossed,
The soul is still the same, the figure only lost." Poem on Pythagoras, Dryden's Ovid.

It is unfortunate to have endured the constant flutter of disbelief(cry of pseudoscience) as to what is possible in a given space, that we can say that we do not really have all the facts to it's understanding, yet, to know that in this region, new physics will be produced.

It is also unfortunate to have observed a whole generation of string theorists who have undergone this constant rebuttal and berating over and over again while standing strong to the "educative values" undermined by those who saw no benefit too. You maintained the perseverance of a "thought domain that cover regions within the valleys" to be speaking about a time just after the big bang. How would the normal population of scientists know this?

Thanks to the high collision energy and luminosity of the LHC, the ATLAS detector will be capable of revealing the existence of extra spatial dimensions in some substantial region of parameter space. The talk will summarize recent studies from the collaboration on different possible signals predicted by models where the dimensions are "large", where they are of size ~TeV^-1 or where they are "warped". These signals include direct emission of Kaluza-Klein states of gravitons, virtual effects of graviton exchange and gauge boson excitations. We shall also discuss the possibilities of observing black holes. mini review for search of eXTRA Dimentions

Now this question is an important one to me, because it is based on the amount of energy used in the collision process, and what is to come out of that collision process as tracks, adds up to so much energy. If these two numbers do not equal in parity then where has that extra energy gone?

This has always been a fundamental question to me of where I thought "new physics was to be found" and to have Tammaso Dorigo confirm this is quite a statement indeed of what is leading perspective in terms of what is to be measured and what is going to be measured in the proposed LHC experiments.

Missing Energy Kicks New Physics Models Off The Board

The signature of large missing energy and jets is arguably one of the most important avenues for the study of potential new physics signatures at today's hadron colliders.

The above concept marks an interesting turn of events: the years of the glorification of charged leptons as the single most important tools for the discovery of rare production processes appears behind us. The W and Z discovery in 1983 by UA1 at CERN, or the top quark discovery by CDF and DZERO in 1995 at Fermilab, would have been impossible without the precise and clean detection of electrons and muons. However, with time we have understood that missing energy may be a more powerful tool for new discoveries.

Missing energy arises when a violent collision between the projectiles -protons against antiprotons at the Tevatron collider, or protons against protons at the world's most powerful accelerator, the LHC- produces an asymmetric flow of energetic bodies out of the collision point in the plane orthogonal to the beams: a transverse imbalance. This is a clear signal that something is leaving the detector unseen. And it turns out that there is a host of new physics signals which can do precisely that.

A large amount of missing transverse energy may be the result of the decay of a leptoquarks into jets and neutrinos, when the latter leave undetected; or from the silent escape of a supersymmetric neutral particle -the neutralino- produced in the chain of decays following the production of squarks and gluinos; or it may even be due to the escape of particles in a fourth dimension of space -an alternative dubbed "large extra dimensions".
see more in linked title above)

Now this is the thing that has troubled me most about scientists who are working and in the know, had not realized the necessity of pushing perspective back to a time to the first moments of the big bang(not just Steven Weinberg's first three minutes but of the microseconds just after the big bang) in order to understand what we are working on in terms of unification, and of where the products of this missing energy will spring forth from, as we move forward in the experiments to come.

The understanding then has always been in what is in that missing energy, to determine what new physics shall be, that such understanding was already there for the string theorist in their considerations. The contact point has already been defined for them, and reached two extremes. There is a reason why the missing energy escapes.

You had to know already where and what this "contact point meant" and what was to come out of it to know that dynamical qualities could exist in the big bang and where this big bang resides in the cosmos. That such energies can be reached there now. This required us to know that local events in the cosmos could contribute to the very nature of the cosmos and the state of the cosmos in the now. Like some cosmological constant "hidden and growing" in Omega.

To know that the dissipative results from micro collisions decaying fast too, did not mean we would be running short of the elements of this new physics either. It left it's remnants all around us to know that what can come out of such a collision point is not the story of the FLashForward scenario, but of things that travel through the earth to meet Gran Sasso and the likes. It was a whole plethora of particle disseminations that left missing energy around for us to explore in potential as some fictional substrate of the reality of nature that had not been seen before.

Tuesday, February 03, 2009

Bringing the Heavens Down to Earth

"We all are of the citizens of the Sky" Camille Flammarion


The Flammarion woodcut. Flammarion's caption translates to "A medieval missionary tells that he has found the point where heaven and Earth meet..."
The widely circulated woodcut of a man poking his head through the firmament of a flat Earth to view the mechanics of the spheres, executed in the style of the 16th century cannot be traced to an earlier source than Camille Flammarion's L'Atmosphère: Météorologie Populaire (Paris, 1888, p. 163) [38]. The woodcut illustrates the statement in the text that a medieval missionary claimed that "he reached the horizon where the Earth and the heavens met", an anecdote that may be traced back to Voltaire, but not to any known medieval source. In its original form, the woodcut included a decorative border that places it in the 19th century; in later publications, some claiming that the woodcut did, in fact, date to the 16th century, the border was removed. Flammarion, according to anecdotal evidence, had commissioned the woodcut himself. In any case, no source of the image earlier than Flammarion's book is known.


I thought I would borrow the title of this blog posting, "Bringing the Heavens Down to Earth," as it exemplifies some of the understanding I have of what is happening we point our fingers to the sky and beyond. What we shall see taking place in the earth's Environ then as we recognize Earth's Earthbound?

The ole woodcut above I think explains this nicely. It's like "breaking a barrier" that has been imposed on our thinking. Too reveal, that the experimental procedures had been progressive and laid out the understanding of where new physics shall reside. It comes after the cross over-point, and in this respect it is important that we recognize where this focus is allocated to help orientate in a most generalizable level where such experimental procedure has taken us.

Peter Steinberg, when at Quantum diaries, lead us through this.

The creepy part of these kind of discussions is that one doesn't say that RHIC collisions "create" black holes, but that nucleus-nucleus collisions, and even proton-proton collisions, are in some sense black holes, albeit black holes in some sort of "dual" space which makes the theory easier.


Cosmic rays have been long been recognized as a background to the search for rare new physics processes in collider experiments. This was the case for the LEP detectors and it will certainly be the case for ATLAS and CMS. A thorough understanding of the development of cosmic rays in the overburden of ATLAS will be a useful tool in understanding the cosmic ray background and consequently how to minimize this background.

This page is aimed at those of us who wish to use the tools developed by the group working on simulating the development of cosmic rays (mostly muons) in ATLAS with a view to studying cosmic ray backgrounds to future searches.


***


See:
  • Man Looking into Outer Space
  • Cascading Showers from the Cosmos
  • Time as a Measure
  • Saturday, September 08, 2007

    Cascading Showers from the Cosmos

    3) It is claimed that cosmic rays can energy exceeding that of colliders, and they have not caused trouble, suggesting that colliders will not cause trouble either. However, the analogy is not precise. It assumes two things that may not be true. First, cosmic ray center of mass energy exceeding that of colliders has never been measured directly. Measurements that seem to show this are based on showers of secondary particles. Second, the product of a collision between a cosmic ray and an earth particle will always be moving at an appreciable fraction of the speed of light. If it has a small capture radius, it will always pass right through earth like a neutrino. The product of a collider collision can (sometimes) be moving at less than escape velocity from earth. If so, it will fall into earth where it will have forever to accrete other matter. Some calculations show rapid accretion.
    See: Risk Evaluation Forum

    Using this above as one basis of the argument, it was by these assumptions that I too was convinced things would be okay. There are a lot of things that go with this statement that currently is not expressed given current information in regards to Pierre Auger experiments. That when clearly seen in the light of current research into LHC, does not allow one to take in all that they should be.


    Contact


    Go back to John Ellis and current research if you must, and thinking in terms of the cosmos. It's infancy, and one does not disregard the "origins and beginnings" of this universe. Are there reasons that are less then desired that would govern any legal defence team based on some "religious affiliation" and driven from this religious context? I hope not.



    We would not want some Woitian backlash, as done with string theory, from a intelligent design standpoint, as a recognized motived factor in that legal defense. It is far beyond me that I ask these associative questions, yet, these images come to mind when ever the establishment hosting the world's collective scientists, is confronted by the very issues that seem evasive in regards to safety?

    Energies Used in Particle Creation



    It would behove any person to take the time to travel to the links I am supplying, to help you absorb as much information as possible.With the full intention that what I am describing does have a distillation process that will become very simple in qualitative design.



    Finding the energy range with which we are dealing within our colliders, has awakened the realization of the complexity dimensional attributes would have considering E8.

    "I’m a Platonist — a follower of Plato — who believes that one didn’t invent these sorts of things, that one discovers them. In a sense, all these mathematical facts are right there waiting to be discovered."Donald (H. S. M.) Coxeter


    The complexity of the blackhole would have allowed the possibilities of describing the source of "all dimensional attributes" knowing that the collapse of the blackhole would bring temperatures to the point of the quark Gluon plasma. What would be happening to allow such complexity?

    This basis of thought on my part is, "the equivalence determined" and thought about in terms of Lagrangian considerations. This another topic. But does deal with the understanding of the potential microscopic blackholes that could be produced, determined by the energy levels

    Thus RHIC is in a certain sense a string theory testing machine, analyzing the formation and decay of dual black holes, and giving information about the black hole interior.


    See:Are Strangelets Natural?

    LHC Safety?

    I am writing this blog entry because of Walter's comments on the side.

    It is very hard for me knowing that there is a train of thought developed through my research. This question of cascading showers, were with the understanding of "energy events" that allowed us to see a "greater plethora of mapping" that would direct us to the very essence of symmetry breaking, based on experimental processes herein this blog described.

    "String theory and other possibilities can distort the relative numbers of 'down' and 'up' neutrinos," said Jonathan Feng, associate professor in the Department of Physics and Astronomy at UC Irvine. "For example, extra dimensions may cause neutrinos to create microscopic black holes, which instantly evaporate and create spectacular showers of particles in the Earth's atmosphere and in the Antarctic ice cap. This increases the number of 'down' neutrinos detected. At the same time, the creation of black holes causes 'up' neutrinos to be caught in the Earth's crust, reducing the number of 'up' neutrinos. The relative 'up' and 'down' rates provide evidence for distortions in neutrino properties that are predicted by new theories."


    See: How Particles Came to Be

    In doing my own research, I tried to follow the thinking of the literature presented on the topic of microscopic blackholes. Now there was to my understanding a theoretical position assumed, from what we understood when dealing with the topic, and the understanding of what Cern was to produce.

    Fig. 2. Image showing how an 8 TeV black hole might look in the ATLAS detector (with the caveat that there are still uncertainties in the theoretical calculations).

    Now to me the basis of settling the questions of safety, were answered by association of "what was natural" within the domains of these cascading particle showers in terms of these cosmic rays.

    If we were after the origins and beginnings to our universe, we were in essence, describing and mapping the beginning times of these particle showers. Also, the dimensional attributes of the interior of the blackhole.

    Wednesday, September 27, 2006

    Cosmic Rays in Atlas



    Like Piglet describing the Heffalump in Winnie the Pooh by AA Milne, one knows this started out in some fantastical world. More then, the "inkblot" as a comparison leads too/from, a fictional story, and became the fantasy of Alice that had already been mathematically set in motion?

    So, theree are "ground rules" on using the inkblot in comparison to any microstate blackhole


    The flux of cosmic ray muons through the ATLAS cavern can be utilized as a tool to "shake down" the ATLAS detector prior to data taking in 2007.

    Additionally, a thorough understanding of the cosmic ray flux in ATLAS will be of great use in the study of cosmic ray backgrounds to the search for rare new physics processes in ATLAS.



    Again people like John Ellis lead us to the understanding of what Pierre Auger initiated in understanding this relation of cosmic particles and the issue coming to the forefront, in regards to the microstate blackhole production from these collisions.

    It is only today, that I discover the back ground process that was going on here, while it was bein worked out on Sabines's and Stefan's Backreaction site. I didn't relaize I was a "boucing board" from which the "questions in mind" were being initiated. Repeated comments "there" placed here in the comment sections to advance a position on what I thought.

    The momenta of the charged particles are measured from the curvature of their trajectories in a magnetic field provided by superconducting magnets. The volume and strength of magnetic field needed are not achievable with conventional magnets.


    We use each other as spring boards(nudges) to seeing a little further each time. That is defintiely appropriate to developing a good comprehension of the subject at hand, and creating insight to further information values gained in that research.



    See:

    Stefan and Sabines Backreaction site on Backreaction: Micro Black Holes

    A wonderful resource link to cosmic particles demonstrations

    Also my comment at Backreaction, has some more information in the search for understanding on microstate blackholes as well.

    Wednesday, June 07, 2006

    It's Alive: Cosmic Ray Recordings

    I was doing some visiting around to see what Jacque Distler was doing and of course some blog entries are more dear to the heart, when you have followed the history and found correlative statements that bring the subject home for consideration.

    Jacque Distler:
    Travis Stewart reports that the LHC’s ATLAS detector has seen cosmic ray events, an excellent sign that things are working as they should.




    Seen it's value in other ways immediately. So of course speaking on cosmic rays this entry was inviting and of course leads from one thing to another. Finally then, leading you to the very source of the article in question. It is good that Travis Steward gave the updated source indications of his article, for further reading.

    Atlas enews

    A major milestone for the Inner Detector project has been accomplished in early May as cosmic rays going through both the barrel Semiconductor Tracker (SCT) and Transition Radiation Tracker (TRT) have been successfully recorded in the SR1 building on the ATLAS experimental site at CERN.


    Insinuated Problems within Own Blog?

    Well after doing some work here to figure out, "what was what," I realized I had spelt John Bachall's name wrong (It should be Bahcall) on the entry url search, which did not show up under that search function as Bachall. Da.



    Gosh, I feel like a fool sometimes:)One of those things where the brain is indeed working faster then my fingers on the keys can type.

    It does not mean Lubos Motl, that by spelling names wrong like Gellman(Gell-Mann) or Feynmen(Feynman)that one is any less on aptitude, or that if one reads Smolin, they are part of some "other class of people" that you relate.

    We have to be nice to people, regardless of their religious leanings "atheistic or not? Or, it is possible, those of older age may call you a heathen? :)

    Pierre Auger and John Ellis's work

    So herein lies some more information for the lay person who wants to explore what Pierre Auger and others were doing, while John Bahcall was educating us in the ways of cosmic particle collision events.

    See Also:

  • Why Higher Energies

  • The Blackhole as a Superfluid: It's Viscosity
  • Wednesday, September 14, 2005

    Atlas and Proton-proton Collisions

    Depth of Perception

    I am responding to the link here on Cosmic Variance and the related article, Cosmic Violence. I do not want to tie up their space, so my "further response" is being given here.

    I speak of Glast in the context of that "Window on the Universe" view. This helps to orientate our deeping recognition of those events, but does not include the realization of where high energy considerations are taking us as well.:)

    What is happening at the beginning of our Universe? High energy implications and lower energy determinations reveal prospective views about that same universe? How is it such a view created by such particle collisions could not be drawn to a certain time in our universe?

    By getting to the "high energy times", we are also getting to the circle (think the planck epoch to now) valuation of that early universe? There are always results of energy dissipaton of these early cosmological events, so it needed a consistant way in which to look at this?


    The machine, dubbed ATLAS (A Toroidal LHC ApparatuS), is one of four facilities to be located at a powerful accelerator, the Large Hadron Collider (LHC), now under construction near Geneva, in Switzerland.


    If we were to accept the circle and strong curvature as evident from our early universe considerations, (think of the circle and the planck epoch diagram as a blackhole?), then what happens when our views have been taken to suspersymmetrical points of view and the whole picture becomes locked within the model computation that Andrey Kravtsov does for us. The relaization is that this circle when taken down to planck has extremely strng gravitational considerations, and when and how do we reach this level of consideration on the time and birth of this universe?

    IN Regards to Mathematical Constructs

    Such an article presented by Peter Woit (How Much Mathematics Does A Theoretical Physicist Need To Know?), had me thinking in terms of what the quoted italicized statement below might mean in terms of the consistancy of mathematics developed?

    http://www.math.columbia.edu/~woit/wordpress/?p=256#comment-4918(my comment below)Click on post and you now see the numbered posts alignment. What's the point?

    Plato said:
    If the Horizon exists as a mathematical construct, would we dissallow any mathematical counterpart that would lead from this, to incorporate other perspectives?

    "D-branes provide the fundamental quantum microstates of a black hole that underlie black hole thermodynamics"

    Developement of the mathematics would have been consistent then in how strng theory had developed?


    So we know getting to the depth of perception necessary, had to include physics views here in order to develope the framework. High energy consideration could not have done it on it's own, so the topic is masked in theoretical definitions that we are not to accustomed too?:)

    Yet it deals with a specific time frame in the developement of the early universe that is below Planck length. Below the "Planck epoch" (this holds a measureable time frame just after the beginning of the universe?)is the realization and "time valuation" that we assign this new perspective view, when we take physics in hand and abstract mathematics to it's fruitation?

    While the link has been maintained to Peter Woits Blog, the post has not. It had been supplemented by Dickt's post.

    This won't deter the documents and valuation of what string theory had to offer, and refused acknowledgement by Peter Woit to the progress, such developements might have taken string theory too?:)Tricky post like I wrote, acknowledges not only string theories position but Lee Smolins pursuate as well:)

    Sunday, June 12, 2005

    Search for Extra-dimensions with ATLAS at the LHC: The Lions Den

    I have often wonder whether or not my opinions about left and right aspect battling in society, are right?:) Peter Woit saids string theory is right wing financed? I hate to dread that media has been perversive enough in order to support political factions affecting science?

    So I'll tell you how affected I have become too, so you can see that the greater significance and responsibility is not really about right and left, but about science's perspective about the state of affairs beyond the matters at hand?

    I couldn't help think of the flavour of good scientific minds, who would rise to the challenge, and make the theoretical approach some struggle between good and evil? As some atheistic attempt, "to remove informative possibilities" from the subject that might have come from the "trigger of emergent properties"? I don't say change quantum mechanical porpityies either just that we see it in context of a new model. Is this wrong, or right?

    Fancy free, and without adeu, I cast myself on what it must be like, if such a fancy was taken to the issues of "Intelligent design," that it could have ever undermined the basis of this literary conversation, to have scientists designated here and there, as a division, regardless of the virtues of scientific inquiry held to both.

    So herein, begins the story.:)

    "The soul that rises with us, our life's star,
    Hath had elsewhere its setting,
    And cometh from afar.
    "

    "Intimations of Immortality" by William Wordsworth

    >"Or, if through lower lives I came--
    Tho' all experience past became,
    Consolidate in mind and frame--
    I might forget my weaker lot;
    For is not our first year forgot?
    The haunts of memory echo not."
    "Two Voices" by Tennyson


    "As to you, Life, I reckon you are the leavings of many deaths,
    No doubt I have died myself ten thousand times before."
    ""Leaves of Grass" by Walt Whitman



    Solidus of Justinian I (r. 527–565), 538–565

    Byzantine; Minted in Constantinople
    Gold; Diam. 3/4 in. (1.9 cm)
    Bequest of Joseph H. Durkee, 1898 (99.35.7406)
    Coins connected an emperor to his subjects. Through inscriptions and images, they conveyed imperial ideals and commemorated auspicious events. The emperor paid the army and received taxes in coins, and he was responsible for maintaining their weight and purity. This coin was minted under Justinian, whose preference for a completely frontal portrait—rather than the traditional profile—would set a standard for the rest of Byzantine history.


    The struggle then is something contained back in our history, to have those who will guide us through common sense to say, that the evils of society are no less the roads taken by revisionist who would try and change the path of Christianity? Be smited by, those who hold on religious tenant might have been extolled into the future of lives? Where go these "lost souls" while they converge on string theory and try and change history?:)

    From A Defense of an Essay of Dramatic Poesy (1668) by John Dryden

    Imagination in a man, or reasonable creature, is supposed to participate of reason, and when that governs, as it does in the belief of fiction, reason is not destroyed, but misled, or blinded: that can prescribe tot he reason, during the time of the representation, somewhat like a weak belief of what it sees and hears; and reason suffers itself to be so hoodwinked, that it may better enjoy the pleasures of the fiction: but it is never so wholly made a captive as to be drawn headlong into a persuasion of those things which are most remote from probability: 'tis in that case a free-born subject, not a slave; it will contribute willingly its assent, as far as it sees convenient, but will not be forced....Fancy and reason go hand in hand; the first cannot leave the last behind; and though fancy, when it sees the wide gulf, would venture over, as the nimbler; yet it is withheld by reason, which will refuse to take the leap, when the distance over it appears too large



    Missing E_T and its uses (LHC)?

    This larger font sized comment directs us in our quest to wonder what had been going with the anti-stringy camps who might have challenged the views? Is there sufficient data to back up the statements, other then to stand as "religous converts of a point of view," soley spoken by the "more advanced," might have their reasons why this approach is insufficient? Other then, to hold the roads of a predawn attempts in christianity to a societal way of thinking, contrary, to the established views written in the years of Constantinople in 538?:)

    Thanks to the high collision energy and luminosity of the LHC, the ATLAS detector will be capable of revealing the existence of extra spatial dimensions in some substantial region of parameter space. The talk will summarize recent studies from the collaboration on different possible signals predicted by models where the dimensions are "large", where they are of size ~TeV^-1 or where they are "warped". These signals include direct emission of Kaluza-Klein states of gravitons, virtual effects of graviton exchange and gauge boson excitations. We shall also discuss the possibilities of observing black holes.


    In post below this one the question of extra energy was a important one in that it highlights the question of those "extra dimensions or not." For my generalized view, there is no leading explanation to the general public that would annouce how this diversion from current scientific approaches of Cern, will lead to satisfaction of the road of super string theory has taken. To understand, it is not willy nilley approach to some "Intelligent design quest" that such string theorists had been cornered too, in discription by anti-stringy voices?

    From what I had understood contrary to this view of the string camp, it's only opositon was LQG and the roads that lead in that general direction. At least these were directions that operated from a basis of discrete or continuity, other then mere speculation of the sort that would dissuaade most readers from idolizing , and being drawn into the lair of lions?:)

    It was as if the rhtymns of life could been entangled in minds and the quantum Harmonic osccilator embedded to language that science found in the true numerical basis of eisstance, that it could be cast in forms of shakesperean words, and hidden from the view by Francis Bacon's true discourse on history?

    On constitution reform, Jefferson Davis words needed revision, to have a man like Benjamin Franklin stand up and devote a treaty on reason? It would guide the American view, to a healthy and just system of inquiry, as to the rights and freedoms shared by the American views? What lessons lie in scientific inquiry then to have those who stand at the forefront, and make it some intangible realism of the "forces of light and darkness "fighting to bring society into it's talons?

    "Death, so called, is but older matter dressed
    In some new form. And in a varied vest,
    From tenement to tenement though tossed,
    The soul is still the same, the figure only lost."

    Poem on Pythagoras, Dryden's Ovid.


    See:

  • ICHEP'04-Accepted Abstracts for Session 12: Beyond the standard model