Showing posts with label Pierre Auger. Show all posts
Showing posts with label Pierre Auger. Show all posts

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.

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.

Wednesday, April 06, 2005

Symmetry: Dimensions of Particle Physics

I thought it important that I present the infomrtaion that was tied to John Ellis's article in previous thread below and what was happening in regards to Microstate blackhole recognition.


Let it Rain
The most energetic particles in the universe have a message for us. The gigantic Pierre Auger Southern Observatory, still under construction in Argentina, is already trying to decipher it.
By Davide Castelvecchi


Most people I have read reveal the silence of common information, as a realization of Blackholes as the cosmological design, we like to play with. But when it comes to testing these extra dimensions, imagine indeed, that such length's we go too, helps us to adjust to what happens around us everyday.

From this conceptualization, much has changed in the propspective views? Staunch supportors of rejection, do not realize what could be implied of the extra energy dissappearing and how you would measure it, in our everyday surroundings?.

I give a philospohical explanation to help explain the realization of how we see in these extra dimensions The earlyhsiory of extending these ideas, calls for more educative functions with those who do not understand this extension and theoretics going out on this limb. Should it be so easily dismissed?


If you do not follow this history, you will never understand what Nima Arkani-Hamed, Sava Dimopoulos, and Gia Dvali been doing with extra dimensions. There is a conceptual feature here that I have spoken too in regards to gravity that few understand.


So as we see Einstein's Bubble, we come to recognize the consistancy with which we would engage information that arises from such bubbles being burst. They give us information about the contents of these spaces, and from such light, we wonder what has been revealled? Cosmologiclaly the whole universe is teaming with the understanding that there can never be this zero function? To have realize it is a very dynamcial process that is continous and cyclical in nature?

Underlying this view of a cyclical nature, is the realization that such events are geometrically/topologically driven and schematically express the whole frame work of this discussion. How suttle it is sometimes, that we would be dismayed by physicists who are speaking about the geometrics/topological functions, to realize they are incorporating the realizations of this contraction/expansive feature, not only in the cosmo, but in how we see into the nature around us now.

Of course this is from a junior mind on these things in terms of education, but hopefully the vsion and eyesight, is well enough that such discriptions displayed, has viable perspectives to share?

Monday, January 10, 2005

Tiny Blackholes in Cosmic Observations?

205th Meeting of the American Astronomical Society 9-13 January 2005 -- San Diego, CA

I am kind of interested to find further information on how microstate blackholes might have been generated and looking at the concentration of minds, I wonder if this topic was brought up, or will be brought up?

The Pierre Auger Observatory, currently being constructed in Argentina to study cosmic rays, could examine the structure of spacetime itself, say physicists in the United States.

If, as some suspect, the Universe contains invisible, extra dimensions, then cosmic rays that hit the atmosphere will produce tiny black holes. These black holes should be numerous enough for the observatory to detect, say Jonathan Feng and Alfred Shapere of the Massachusetts Institute of Technology in Cambridge, Massachusetts1.

The observatory will consist of two 3,000-square-kilometre arrays - one in Argentina, one somewhere in the Northern Hemisphere - each containing 1,600 particle detectors. Scheduled for completion by 2004, scientists hope that the equipment will help to solve the mystery of cosmic rays. These rays consist of extremely high-energy particles that stream into the Earth's atmosphere from space - from where, exactly, no one knows.


Lubos has mention Steve Giddings and I have also mentioned himearlier inmy blogs on the topic of Mini blackholes as well.

In theories with large extra dimensions at sub-millimetre distances, for example, and/or high energies of the order of 1 TeV or more, gravity may become a strong force. Thus, hypothetically, the energy required to produce black holes is well within the range of the LHC, making it a "black-hole factory". As Stephen Hawking has taught us, these mini black holes would be extremely hot little objects that would dissipate all their energy very rapidly by emitting radiation and particles before they wink out of existence. The properties of the Hawking radiation could tell us about the properties of the extra spatial dimensions, although there are still uncertainties in the theory at this stage. Nevertheless, astroparticle and collider experiments should provide useful input to the theoretical work in this area. Indeed, the signatures are expected to be spectacular, with very high multiplicity events and a large fraction of the beam energy converted into transverse energy, mostly in the form of quarks/gluons (jets) and leptons, with a production rate at the LHC rising as high as 1 Hz. An example of what a typical black-hole event would look like in the ATLAS detector is shown in figure 2.
If mini black holes can be produced in high-energy particle interactions, they may first be observed in high-energy cosmic-ray neutrino interactions in the atmosphere. Jonathan Feng of the University of California at Irvine and MIT, and Alfred Shapere of the University of Kentucky have calculated that the Auger cosmic-ray observatory, which will combine a 6000 km2 extended air-shower array backed up by fluorescence detectors trained on the sky, could record tens to hundreds of showers from black holes before the LHC turns on in 2007.




Cosmic rays in ATLAS
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.