Wednesday, April 27, 2005

The Calorimetric View?



The Title, might seem somewhat strange, but a issue has developed for me that I see raised in the scourge of other intellectuals, who disavow the extra dimension scenario.

So you have this view and you have this idea of missing energy? Where did it go and where did it come from? Pierre Auger linked previously and the Oh my god particle, raise this idea more in line with the vaster layout of this possibilty.

You see these things are happening around us now, and you needed a much comprehensive view of this compacted dynamcial world? So the methods seen for determination help us to see what is happening in relation not only to particle reductionistic views, but of the relationship happening with Earth and the Sun. Our other Cosmic relations, that move here in the vast network of spacetime contortions that signal informative views from earlier times


ATLAS and the LHC
Describing the strong, weak and electromagnetic interactions in terms of gauge theories, the Standard Model (SM) of fundamental particles and their interactions has successfully explained and predicted many aspects of high-energy particle interactions. However, despite its tremendous successes, it remains theoretically unsatisfactory. The SM cannot answer what is the origin of particle masses, contains a large number of arbitrary parameters, and does not explain why there are so many types of quarks and leptons, among other questions. Perhaps as much as theoretical breakthroughs are needed in order to improve the SM, so are experimental observations on phenomena which can further constrain the SM or may reveal physics beyond it.


The question I raised was in looking at where the missing energy had gone? This is a important question, becuase it speaks to what energy gone in/out, as not being equal? I take it, that all particle reductionistic interpretations would have surmized it's energy value, and then, had something left over that is accoutable? How would you know it's missing?

Now I was looking a Cabi's ole post and from it, this lead me to look at the title of the connected paper for consideration.


A Toroidal LHC ApparatuS


Part of the counterpart of looking at particle creation would have been able to understand the part of the calorimeters that are used to measure the evidence produced. IN this context, it lead me to the Atlas information held at CERN. It also made me think of Glast determinations of early universe indications from the calorimeter located in the Glast satelitte. See the Looking Glast


A Higgs Mechanism for Gravity, by Ingo Kirsch

In this paper we elaborate on the idea of an emergent spacetime which arises due to the dynamical breaking of diffeomorphism invariance in the early universe. In preparation for an explicit symmetry breaking scenario, we consider nonlinear realizations of the group of analytical diffeomorphisms which provide a unified description of spacetime structures. We find that gravitational fields, such as the affine connection, metric and coordinates, can all be interpreted as Goldstone fields of the diffeomorphism group. We then construct a Higgs mechanism for gravity in which an affine spacetime evolves into a Riemannian one by the condensation of a metric. The symmetry breaking potential is identical to that of hybrid inflation but with the non-inflaton scalar extended to a symmetric second rank tensor. This tensor is required for the realization of the metric as a Higgs field. We finally comment on the role of Goldstone coordinates as a dynamical fluid of reference.


Now I have not gone into in detail because I am somewhat slow and a bottom feeder trying very hard to gain perspective of the world these fellows like to deal with.

So the water symbolically speaking, sound manifest, with those inhabiting a dynamical world, speak about the nature of matter constitutions. That come from some state of existance? Here the idea, that it could emerse from nothing (where do the graviton perceptions reside?), is again hard to swallow becuase, "preconstitutional states," had allowed such manifestations to emerge from something? It just seemed logical? Non!

When you think this is going to be the end of it, I thought, I would recap, because I have given the containment(calorimetric) that such particle views, or early universe connections, might have brought forward in detectors methods?

This would have satisfied Peter Woit I am sure, but this view is far from over. The rules have defined a greater context to the issue that points us to the deeper issue of what Gerard 't Hooft might have said was comprehensible features of computerized information consistancies. This would have been far from the truth. Blackhole particle production, would have said hold on? To have this comprehensive view, you needed to include a completed version of the standard model? Without the grvaiton in cvomputerized versions you see where the picture is far completed and you se where the extra dimensiona would have certain features that would have incorporated graviton perceptions in the bulk?



The horizon would have been far from complete had the standard model not included this into the the energy in/out version. This would have been the thread(string) that connected the innner space of the blackhole with the particle production that would have dissipated/exploded in view? How would computerization meet this demand? LIGO?

The Dark Side of Extra Dimensions

"The Dark Side of Extra Dimensions" is a two-day workshop to be held at the Banff International Research Station (BIRS), Banff, Alberta, Canada, May 12-14, 2005 (organized by Valeri Frolov, Don Page, and Andrei Zelnikov, Theoretical Physics Institute, Department of Physics of the University of Alberta). At this workshop we hope to cover such topics as black holes in spacetimes with large extra dimensions, black strings, black rings, topological black holes, the Gregory-Laflamme instability, the analogue of the Petrov classification in higher dimensions, the effect of shadow matter, the statistical mechanics and entropy of black holes and other gravitational configurations in higher dimensions, and possible observable consequences of the existence of topologically nontrivial higher-dimensional objects.

Tuesday, April 26, 2005

The Holographical Mapping of the Standard Model onto the Blackhole Horizon

New paper that came out yesterday written by Gerard 't Hooft

Interactions between outgoing Hawking particles and ingoing matter are determined by gravitational forces and Standard Model interactions. In particular the gravitational interactions are responsible for the unitarity of the scattering against the horizon, as dictated by the holographic principle, but the Standard Model interactions also contribute, and understanding their effects is an important first step towards a complete understanding of the horizon’s dynamics. The relation between in- and outgoing states is described in terms of an operator algebra. In this paper, the first of a series, we describe the algebra induced on the horizon by U(1) vector fields and scalar fields, including the case of an Englert-Brout-Higgs mechanism, and a more careful consideration of the transverse vector field components.


But before I entertain this idea, I wanted to gain some perspective. I was immediately struck by something here that changes the way we have been doing things? Recognizing the blackhole evaporation and standard model production, we are saying that indeed these things already existed in the horizon?

Would M theory have then found it's experimental counterpart? The Bose Nova and Jet idea from collapsing bubbles has been part of the vision I speculated in what Heisenberg saw in the geometrodynamics of a nuclear explosion. See, not only were we detonating a nuclear reaction(gravitational collapse), but we were doing something beyond the perception, by going to the heart of these particle collisions.

What makes it diffuclt for me is that having seen the blackhole dynamics in relation to bubble technlogies, that I like to use as analogies, relate too, and contain the elements of the standard model without ever entering the blackhole? How is this possible and still see the three blane collapse of the blackhole here?

Dimensional Reduction in Quantum Gravity by Gerard 't Hooft


The requirement that physical phenomena associated with gravitational collapse should be duly reconciled with the postulates of quantum mechanics implies that at a Planckian scale our world is not 3+1 dimensional. Rather, the observable degrees of freedom can best be described as if they were Boolean variables defined on a two-dimensional lattice, evolving with time. This observation, deduced from not much more than unitarity, entropy and counting arguments, implies severe restrictions on possible models of quantum gravity. Using cellular automata as an example it is argued that this dimensional reduction implies more constraints than the freedom we have in constructing models. This is the main reason why so-far no completely consistent mathematical models of quantum black holes have been found.

Essay dedicated to Abdus Salam.


Gerard "t Hooft:No 'Quantum Computer' will ever be able to out perform a 'scaled up classical computer.'

Holding onto the sanity of why such computerization program will run into difficulties, has not undermined the position to included and create opportunities for seeing what is happening at such reductionistic levels? To have wondered, will we gain a dynamcial visulaization of what is happening within the context of the universe as it came into being?

With more computer power, scientists can also include more elements of the Earth's climate system, such as the oceans, the atmosphere, their chemistry and the carbon cycle.

This should make forecasts of future temperature rises more reliable. Keiko Takahashi, who works at the Earth Simulator Centre, says they have already carried out several experiments that look 50 years ahead.



There is difficulties with doing this, and like LIGO or a SEti work in progress, how shall this information allows us to see the interactions in a consistent model? So dealing with these difficulties has been part of Gerard 't Hoofts analysis to see that others too, work hard to deal with issues of information paradox?

Part of this difficulty in computerized model application, would have been transfer rates of information from such quantum levels. Lubos gives some insight here. Although it has been very nice that such visualization techiques could be applied to this data transfer, from what we understand of particle reductionsism. Within context of the larger universe, how detailed shall has our observations become of the world around us?


These images contrast the degree of interaction and collective motion, or "flow," among quarks in the predicted gaseous quark-gluon plasma state (Figure A, see mpeg animation) vs. the liquid state that has been observed in gold-gold collisions at RHIC (Figure B, see mpeg animation). The green "force lines" and collective motion (visible on the animated version only) show the much higher degree of interaction and flow among the quarks in what is now being described as a nearly "perfect" liquid. (Courtesy of Brookhaven National Laboratory)


The goal of the Large Hadron Collider (LHC) is to link roughly 6,000 scientists so they can perform large-scale experiments and simulations to help the world better understand subatomic particles. The grid will ultimately link more than 200 research institutions.

"This service challenge is a key step on the way to managing the torrents of data anticipated from the LHC," Jamie Shiers, manager of the service challenges at CERN, said in a statement. "When the LHC starts operating in 2007, it will be the most data-intensive physics instrument on the planet, producing more than 1,500 megabytes of data every second for over a decade."


Gerard 't Hooft recognized this problem and when we see such scattering ideas from blackhole standard model production particles, how shall we see this event in terms of what is sent back for examination? It would mean considering the context of Gerard's paper there is no information loss? No missing energy events?

Thus the consistent model frame, from blackhole production underlying framework would disavow any ideas relating to energy in and energy out imbalance held in context of gravitonic production as part of the standard model production? The horizon area would become a balanced view?

Using the ideas of Clementine and the graduation to Grace, it seemed that I was leading to a good comprehensive view of the bubble technicalities as they contained the missing energy, but moving too "this view of Gerard's" might endanger how we approximate the whole view of this missing energy, with the easy removal of that missing energy scenario? Would this be consistent with the overall encompassed view that the grvaiton has emerged from the extension of this standard model to say oh, it's okay we can remove this and fnd comfort with the existing framework without other contentions issues like missing energy to deal with this?

Do we have Proof of this Missing Energy? If the answer is yes, then the issue has not been resolved?

Saturday, April 23, 2005

Rhetoric and Composition

I hope the time will be taken to patiently read and follow through as it will explain the dangers of what Sokal did, and the mistrust he place at the front door of media control. Censorship.

What were the motivations of people like Peter Woit to highly censor only what he wanted shown in regards to his views, or a Sean Carroll, who might disallow a Lubos Motl that rubs Sean the wrong way?

Both cases, the inherent right of bloggery ownership entitled, what views might be imparted and by this distinction alone, the character? Did this somehow contribute to a finer process of education developement? It certainly as I pointed out retained some integrity, if we thought the derogatory statements were less then appealing to our very natures and constitutions. But did we then censor more then the pride with which we see ourselves?

A little education on the Sokal Affair.

Modernity is fundamentally about order: about rationality and rationalization, creating order out of chaos. The assumption is that creating more rationality is conducive to creating more order, and that the more ordered a society is, the better it will function (the more rationally it will function). Because modernity is about the pursuit of ever-increasing levels of order, modern societies constantly are on guard against anything and everything labeled as "disorder," which might disrupt order. Thus modern societies rely on continually establishing a binary opposition between "order" and "disorder," so that they can assert the superiority of "order." But to do this, they have to have things that represent "disorder"--modern societies thus continually have to create/construct "disorder." In western culture, this disorder becomes "the other"--defined in relation to other binary oppositions. Thus anything non-white, non-male, non-heterosexual, non-hygienic, non-rational, (etc.) becomes part of "disorder," and has to be eliminated from the ordered, rational modern society.

Now of course I have to contend with some people in order to move forward the issues that I was trying to explain on the Kyoto, that would bring out a debunker that was brain washed, and who was careless about the content, without attacking it's substance.

This brings forth the nature of this thread to further enlighten not only myself, but people who are just plain obnoxious to the truth. A young mind that has wasted his talent on supposely protecting the interest of all us bloggers, forum particpators and who ever the like that would use this internet media.

Now I spoke in regards to this issue about Sokal becuase it cross referenced the issue that I would be leading too, and the relationships that curently are being talked about and developed in science. I use science to help further enlighten myself about how Einsteins views can be seen at work in a developing attitude in regards to the issue of Kyoto Accord. For and/or against.

I saw the content of Sokal generator application and submission as a deliberate attempt to cast doubt on all media and brought out the scum of the internet called debunkers.

Transgressing the Boundaries: Towards a Transformative Hermeneutics of Quantum Gravity

Now you had to understand what Sokal did in order to understand the content of his submission.

The essay you have just seen is completely meaningless and was randomly generated by the Postmodernism Generator. To generate another essay, follow this link. If you like this particular essay and would like to return to it, follow this link for a bookmarkable page.

The Postmodernism Generator was written by Andrew C. Bulhak using the Dada Engine, a system for generating random text from recursive grammars, and modified very slightly by Josh Larios (this version, anyway. There are others out there).

This installation of the Generator has delivered 1586990 essays since 25/Feb/2000 18:43:09 PST, when it became operational. It is being served from a machine in Seattle, Washington, USA.

More detailed technical information may be found in Monash University Department of Computer Science Technical Report 96/264: "On the Simulation of Postmodernism and Mental Debility Using Recursive Transition Networks". An on-line copy is available from Monash University.

More generated texts are linked to from the Communications From Elsewhere front page.


Now that we have discern the nature of the content of the Sokal reference how can we continue with the demands of science. How we measure the effect of Climate, using current technologcal advances? Applcations of these technologies would need to be lead through in order that we understand the science that had been developed.

Sokal instigated mistrust in media, and not the cautious apporach to verification most scientist would expect of delivering a comprehensive and systemic approach to the theoretical developement. They had to have a basis from which to present these views and they, in order to advance science, had to move from the foundations that had already been traversed and, move the mind deeper into these views developed abtractually. The basis of these pictures then was the math developed. The basis was a geometry that lead to a comprehensive view of what Einstein offered for view.

Sokal article was laying waste to all of this beautiful work being done. Brought out the immature debunkers who thought they would help society and instead, turned good people bad.


I wrote this in context of another media avenue, but the jest is the same when we think about those who would guard our interest on the internet. From developing in our research and education. I have been less then kind on how I work my compositions and grammar, but I was after the true spirit of information transferance between brains. Any math basis had this derivative function to it, that once math mathematically developed concealled under the larger expression was a scientific validation and objectivity to a long process to develpement.

Of course we say that the ultimate proof is it's validation. But in the mean time, who are they who shall gaurd my interest to follow the correct route to science developement, if debunking has been takng to new heights of arrogance and impedes the further developement of these theoreticcal positions?

Friday, April 22, 2005

Clementine Project Information


Clementine was a joint project between the Strategic Defense Initiative Organization and NASA. The objective of the mission was to test sensors and spacecraft components under extended exposure to the space environment and to make scientific observations of the Moon and the near-Earth asteroid 1620 Geographos. The observations included imaging at various wavelengths including ultraviolet and infrared, laser ranging altimetry, and charged particle measurements. These observations were originally for the purposes of assessing the surface mineralogy of the Moon and Geographos, obtaining lunar altimetry from 60N to 60S latitude, and determining the size, shape, rotational characteristics, surface properties, and cratering statistics of Geographos.


Look at Clementine and the moon. The way they measured gravity there( the satellite lag)? The geological perspective gained from mapping the moon? The frames of reference are thus quite dynamical when you use this perspective to gain new insights developed from the work of Einstein.

Green Cheese?

The Clementine gravity experiment used measurements of perturbations in the motion of the spacecraft to infer the lunar gravity field

The complexity of measuring events in the cosmos, was to see information contained in what exists around us now. Using various locations they are trying to ascertain simultaneous correspondances in the signals from these cosmological locations, as a well as use the distance between these earth based locations.

Gravity for instance, varies with Time

Gravity is "flavor blind," so when a microscopic blackhole evaporates it produces all the Standard Model particles with equal probability. Once one accounts for spin and color, it turns out that particles produced when a blackhole decays are about 72 percent quarks and Gluons, 18 percent leptons, and the rest are bosons. Such a distinctive shower of particles would be hard to miss. So there is the possibility that the Pierre Auger Observatory will detect blackholes.
Page 262, Out of this World, by Stephen Webb

In a complex world of uncertainty this is hard to do, so you look for the ways to see how the cosmic rays create the situations for particle production. So you look for the origins of any number system that began, and how it was used to explain the natural world.

An Excursion into the Dimensions of Numbered Systems

An example here would be using Pascal's triangle. If you "blanket" using resonances pertaining to all number deveopements, then we might understand the harmonies created? Topological movements?

In a euclidean world, the developing geometries will lead somewhere, but how did you every arrive from topological states to euclidean frames of reference? You had to understand the physics process.

So from space to earth, the earth, a final physical state. But you understand that it existed in other states as well? That's where you learn to use the physics.

Tuesday, April 19, 2005

Time-Variable Gravity Measurements



Mean Gravity Field


The Mean Gravity Field lets us work from this mass understanding and provides for, flunctuations in that Gravity field hence the understanding of Time Variable Gravity Field


On planet Earth, we tend to think of the gravitational effect as being the same no matter where we are on the planet. We certainly don't see variations anywhere near as dramatic as those between the Earth and the Moon. But the truth is, the Earth's topography is highly variable with mountains, valleys, plains, and deep ocean trenches. As a consequence of this variable topography, the density of Earth's surface varies. These fluctuations in density cause slight variations in the gravity field, which, remarkably, GRACE can detect from space.


I wanted to put this into perspective, since we can extend our vision of the gravity field, and how we would look at mass distribution. Using this method, we calibrate, understanding current topological features of hills and valleys that serve to remind us, of the mass distribtuion that has gone on in the formation of our planet Earth.

Since passing over these locations calculations recognize these density valuation of mass regions. This allows us to understand the current gravity standard placed on that location.

Time-Variable Gravity Measurements from the GRACE Satellite


NASA, in partnership with the German Space Agency DLR, launched the dedicated gravity satellite GRACE (the Gravity Recovery and Climate Experiment) in March, 2002. This five year mission will map out the Earth's gravity field to unprecedented accuracy at monthly intervals. The temporal variations in gravity inferred from these data will allow people to study a wide range of processes, cutting across a variety of Earth science disciplines, that involve redistribution of mass within the Earth and at or near its surface. It will be possible, for example, to produce monthly estimates of changes in continental water storage anywhere in the world, averaged over scales of a few hundred km and greater, to accuracies of better than 1 cm water thickness.


I have referrred to the hill and valley perspectives that have arisen in relation to how we see the landscape(earth's). If this feature was not comprehended in some model application, would it not have served to settle minds who see no valuation in such landscape perspectives, as a basis to a much better understanding of the nature of the universe, and the reality around us?

Where has the extra energy gone? For some scientists this question highlights something interesting about what extra dimensions might have implied? You gauge the gravitational fields and learn to see time variability as a feature not just of mass consideration, but of energy determinations as well. It's only fitting?:)


The image above shows the many processes of the Earth’s hydrologic cycle that contribute to total changes in water storage


So setting up a comprehensive understanding of these differences, the mean gravitational field and Time Variable gravity field we see now some relationship to things finer in its constitution, and the relationship to Climate.


The Landscape?


What value might be assigned to this understanding, that we look at how such emissions and its effect on the information gathered. Would we see the effect of civilizations and the way this has effecedt those particular geographical regions.

Have we thus found a legitimate model, that current debates on the Kyoto protocals might serve to get everyone on base for determinations. Will this effectvely change the dialogue currently going on in our assessments, of the needed reduction of CO2 emissions?

Thursday, April 14, 2005

G -> H -> ... -> SU(3) x SU(2) x U(1) -> SU(3) x U(1).

Here, each arrow represents a symmetry breaking phase transition where matter changes form and the groups - G, H, SU(3), etc. - represent the different types of matter, specifically the symmetries that the matter exhibits and they are associated with the different fundamental forces of nature


"Nothing to me would be more poetic; no outcome would be more graceful ... than for us to confirm our theories of the ultramicroscopic makeup of spacetime and matter by turning our giant telescopes skyward and gazing at the stars,"
Greene said.





Peter Woit:
Brian Greene was in the audience and somewhat objected to this. Brian's point of view appears to be the more traditional one that people should just try and cook up vacua with as many features as possible close to the Standard Model, and that once they've got such a thing it will have other implications for physics that can be checked. It seems to me that that kind of work has been going on for more than twenty years with no sign of success, but Brian still believes this will ultimately work out.



To me the idea of bubble dynamics is quite revealling when you place the context and question of the dynamics as underlying feelings(this is quite subjective). Much like GR, and these momentus occasions, that can move within our natures, as our comprehension grows. Time experienced in different ways, does this for us?:)It can still be a highly visula thing?:)

To not be mistaken, the questions materializes in the reasons why such dynamics may have been offerred in the same vain as GR, to see that this features becomes a signature of conscious effort, where what is being replaced, reveals some dynamics of the true vacuum?:)

So of course there are questions that need to be resolved. Some might not like to answer them and censor the blog of their own, so that blanket policies regardless of the question, is like who gives a **** about what you think in context of the larger picture of things. Of course they have their own agenda and have the right. It's their blog. I am quite greatful by such resistance presented, has forced me to expand here, where the truth of what I am seeing can be demonstrated.

But I have digressed some from the important question that is raised not only in Serkan's mind but mine as well. So resource info helps in perspective here.

Is QFT vacuum real?

Serkan Cabi:Almost everybody cite the Casimir effect as the proof of reality of quantum ground state of standard model fields. Lately it has become a commonsense especially in the dark energy literature, as an aspect deepening the problem.

So to me looking for an explanation of ths dynamics is a hard one to qualify as it suggested by some, that one wonders about the way early supersymmetrical idealizations have brought consideration to what emerges from these hottimes?



But there are other ways here, that having gotten a grasp of this elasticity of a membrane, that one can see how certain features are held too and others, are presented for further developement in the nature of those same psyches? Imagine introducing this memebrance and the elasticity. What has the mind grasped now?

Below Serkan helps to point out more info for consideration.

The Casimir Effect and the Quantum Vacuum
I have presented an argument that the experimental confirmation of the Casimir effect does not establish the reality of zero point fluctuations. Casimir forces can be calculated without reference to the vacuum and, like any other dynamical effect in QED, vanish as a→0. The vacuum-to-vacuum graphs (See Fig. 1) that define the zero point energy do not enter the calculation of the Casimir force, which instead only involves graphs with external lines. So the concept of zero point fluctuations is a heuristic and calculational aid in the description of the Casimir effect, but not a necessity.


This does not do away with the idea of what can happen within the confines of a vacuum, but ultimately, we realize that the speed of light remains the same, yet other dynamics when playing with physical things, can display wonderful intentions about about this elasticity nature?



Physically, the effect can be interpreted as an object moving from the "false vacuum" (where = 0) to the more stable "true vacuum" (where = v). Gravitationally, it is similar to the more familiar case of moving from the hilltop to the valley. In the case of Higgs field, the transformation is accompanied with a "phase change", which endows mass to some of the particles.


So it is a highly specialize vision that I had been moving towards that I wanted to make sure any bubble technolgies would encase all that we learnt. That we define the further reaches of what this bubble( K=0 before the crunch begins) might have encompassed? Revealled that outer value(K=0) of Friedman's equation and Omega in terms of what critical density would have expounded? In terms of the distance this bubble could grow, in this inflationary universe?

Outside this bubble universe, is a dimensionally filled universe that had grown as this bubble grew?

Such movement in propelling our universe to expression, seems quite a challenge, so having encompassed this larger view of reality, inverse square law would have exemplified the schwarzchild radius, determining the total expansive view of this cosmos?

You had to be able to confine this view and encapsulate it so that the total view developed through the phases of standard model production would have evetually helped us realize the wide scope this particle reductionism and cosmological endeavors had revealled with distances(large and small) joining?:)

Wednesday, April 13, 2005

Collision course creates microscopic 'black holes'


Physics At The End Of The Galactic Cosmic Ray Spectrum will take place in Aspen, Colorado at the Aspen Center for Physics from April 26 to 30, 2005.



Sean Carroll:
Among other responses to the post about fundamental physics in the U.S., there was a position that one occasionally hears: "Who cares about particle physics, we can just do astrophysics instead, it's cheaper and more fun." I've heard this claim even (especially?) from people who have been experimental particle physicists themselves, and have decided to move into astrophysics. This is actually quite an established career path, although not always the easiest one.


This is ole news with leading ideas to consider. Sean's post also directs some reasoning behind this move to astrophyiscs and the relevance it can play where reductionistic understanding having now, related common bonds for consideration with GR. Have we thus found a way to bring together perspectives that help us realized that we are ever more direct in our pursuate?

By Dan Vergano, USA TODAY

On top of that, spotting many black holes would bolster fashionable theories that explain gravity by suggesting that other dimensions — beyond familiar ones such as height, depth and time — exist "curled up" and hidden in the universe.

Measurements of the black holes and their energies would suggest exactly how many hidden dimensions exist. Even if no black holes turn up, the pair suggest science will benefit from results that poke holes in the extra- dimensions theory.

Many physicists find extra dimensions a distasteful notion. In remarks to an American Physical Society newsletter, physicist Frank Wilczek of MIT called the black hole study a sound way to test an unattractive idea.

"There's no question that the Auger observatory will be sensitive to this signal, if it exists," says Penn State's Stéphane Coutu, a member of the international Auger Observatory team. "We'll definitely look."



Frank Wilczek


Asymptotic Freedom: From Paradox to Paradigm

Figure 1: A photograph from the L3 collaboration, showing three jets emerging from electron-positron annihilation at high energy [9]. These jets are the materialization of a quark, antiquark, and gluon.

Figure 7: A picture of particle tracks emerging from the collision of two gold ions at high energy. The resulting fireball and its subsequent expansion recreate, on a small scale and briefly, physical conditions that last occurred during the Big Bang [1.


This simulation shows a single event, the collision of two gold ions with a center-of-mass energy of 200 AGeV. The color code indicates hits in the various subdetector components as well as indicating the momentum of particles. The image on the top is a perspective view near one end of the detector, looking roughly along the beam axis. The bottom image is a side view of the same event
.

Friday, April 08, 2005

Pierre Auger Observatory


In his excellent paper, Louis LePrince-Ringuet, citing a remark of Powell's at the Conference of Bagneres-de-Bigorre in 1953, declared that from that date on, particle accelerators took the place of cosmic rays, which more or less faded into the background. And yet, even today accelerators have not caught up with cosmic rays.


Pierre Auger on Cosmic Rays


"For in 1938, I showed the presence in primary cosmic rays of particles of a million Gigavolts -- a million times more energetic than accelerators of that day could produce. Even now, when accelerators have far surpassed the Gigavolt mark, they still have not attained the energy of 1020eV, the highest observed energy for cosmic rays. Thus, cosmic rays have not been dethroned as far as energy goes, and the study of cosmic rays has a bright future, if only to learn where these particles come from and how they are accelerated. You know that Fermi made a very interesting proposal that particles are progressively accelerated by bouncing off moving magnetic fields, gaining a little energy each time. In this way, given a certain number of "kicks," one could perhaps account for particles of 1018 -- 1020 electron volts. As yet, however, we have no good theory to explain the production of the very-high-energy particles that make the air showers that my students and I discovered in 1938 at Jean Perrin's laboratory on a ridge of the Jungfrau."
-- Pierre Auger, Journal de Physique, 43, 12, 1982



On the vast plain known as Pampa Amarilla in western Argentina, a new window on the universe is taking shape. There the Pierre Auger Cosmic Ray Observatory has begun its study of the universe's highest energy particles. These rare messengers should tell an important story about how they originate. Experiments have so far failed to decipher their message, and their existence has become a profound puzzle. The Auger Observatory is attacking this enigma of the highest energy cosmic rays with unprecedented collecting power and experimental controls.




John Ellis:
The next step will again be taken in Japan, with the new J-PARC accelerator starting in 2009 to send neutrinos almost 300 km, again to the Super-Kamiokande experiment, to probe the third neutrino mixing angle that has not yet been detected in either atmospheric or solar neutrino experiments. This may also be probed in a new experiment being proposed for the Fermilab NuMI beam. One of the ideas proposed at CERN is to probe this angle with an underwater experiment moored in the Gulf of Taranto off the coast of Italy, viewing neutrinos in a modified version of CERN's current Gran Sasso beam.



Aussois, Savoie, France
After "Neutrino 2004" the convergence of results from atmospheric, solar, reactor and accelerator experiments confirms the massive neutrino and gives the first opportunity to test physics beyond the Standard Model. The neutrino oscillations picture is still missing 3 fundamental ingredients: the mixing angle θ13, the mass pattern and the CP phase δ.

Future neutrino beams of conventional and novel design aimed at a megaton type detector could give access to these parameters. Such a detector would also be the next generation facility for proton decay searches and an invaluable supernovae neutrino observatory.




To understand the Higgs mechanism, imagine that a room full of physicists chattering quietly is like space filled with the Higgs field ...


So who is the professor that crosses the room? It is Albert Einstein:)


Any such Blackhole would quickly decay into a shower of Hawking radiation (mainly into standard model particles on our brane, rather than into grvaitons into the bulk). This shower of radiation would be quite different from showers arising from, say, the collsion of cosmic-ray proton with a atmospheric atomic nucleus. Gravity is "flavor blind," so when a microscopic blackhole evaporates it produces all the Standard Model particles with equal probability. Once one accounts for spin and color, it turns out that particles produced when a blackhole decays are about 72 percent quarks and Gluons, 18 percent leptons, and the rest are bosons. Such a distinctive shower of particles would be hard to miss. So there is the possibility that the Pierre Auger Observatory will detect blackholes.
Page 262, Out of this World, by Stephen Webb


Two of the tanks in the Pierre Auger Observatory are shown. They each hold 12 tonnes of clean water and are viewed by 3 X 8” diameter photomultipliers. The electronics for recording and data transmission are powered by solar cells. These tanks are placed close together so that cross-tank measurements of densities and arrival times can be made but the nearest neighbour for all other tanks is 1.5 km away. In this way 3000 km2 can be covered with only 1600 detectors.