Dear Simon and other collaborators, I think it is time that we (BRAHMS) and other RHIC experiments make up our minds about the physics that we are and have been doing. We have published white papers, the therorsits have published white papers, RHIC and DOE sends out press releases, Scientific American accepts an article saying that the liquid QGP has been formed etc... Yet, we write in an abstract as the first sentence that "A major goal of the RHIC program is to create a deconfined state of nuclear matter at high temperatures and densities and to study the properties of this matter". There are no two ways about it: either we 1) don't think that any of what we have been doing has anything to do with quarks and gluons or, 2) we do think that we have shown that RHIC physics has to do with Q and G's. In either case we should develop language consistent with our views and stick to it. I belong to those who think 1) is the right case to tick, even though all, obviously, is not either black nor white. I invite to a discussion on this list on this. Scepticism is fine, but we shooot ourselves in the foot if we don't make up our minds on what WE have seen at RHIC. cheers JJ _________________________________________________________________________ Jens Jørgen Gaardhøje, Professor, Dr. Sc. Niels Bohr Institute, Blegdamsvej 17, 2100 Copenhagen, Denmark. Tlf: (+45) 35 32 53 09, secr. (+45) 35 32 52 09, Fax: (+45) 35 32 50 16. UNESCO Natl. Comm.: secr. (+45) 33 92 52 16. Email: gardhoje_at_nbi.dk. _________________________________________________________________________ ----- Original Message ----- From: "Bekele, Selemon" <bekeleku_at_ku.edu> To: "Flemming Videbaek" <videbaek_at_bnl.gov> Cc: <brahms-l_at_lists.bnl.gov> Sent: Friday, June 30, 2006 10:42 PM Subject: [Brahms-l] DNP abstract Hi Flemming, others please fine below a revised abstract for DNP. I intend to submit it by tomorrow. ############################ Centrality dependent studies of particle spectra at RHIC Selemon Bekele for the BRAHMS collaboration A major goal of the RHIC program is to create a deconfined state of nuclear matter at high temperatures and densities and to study the properties of this matter. A transition from a deconfined phase of quarks and gluons to hadronic matter requires significant rescattering of particles in the initial phase. The amount of rescattering is expected to increase with the size of the reaction region. It is therefore of interest to study reactions over a wide range of collision geometries as measured by centrality. Recent results from AuAu collisions at 200 GeV/NN at RHIC show clear evidence of suppression of the hadron yields at mid-rapidity. Surprisingly, comparable suppression at forward rapidity has also been observed. While the suppression at mid-rapidity is believed to be due to final state effects, the cause of the suppression at forward rapidity is not very well understood. Comparing data from different collision systems may help us understand the underlying mechanism for the suppression at forward rapidity. We present preliminary results from the BRAHMS experiment on charged hadron spectra at pseudo-rapidity ~ 3.0 as a function of centrality in CuCu collisions at 200 GeV/NN. This work was supported by the Office of Nuclear Physics of the U.S. Department of Energy. ############################### Selemon, _______________________________________________ Brahms-l mailing list Brahms-l_at_lists.bnl.gov http://lists.bnl.gov/mailman/listinfo/brahms-l _______________________________________________ Brahms-l mailing list Brahms-l_at_lists.bnl.gov http://lists.bnl.gov/mailman/listinfo/brahms-lReceived on Sat Jul 01 2006 - 18:23:25 EDT
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