Results from PHENIX at RHIC

Details Results from PHENIX at RHIC Results from PHENIX at RHIC

2009-06-03

arxiv.org/abs/0906.0745v1

Physics

Nuclear Physics

Nuclear Experiment

Invited lecture at International School of Subnuclear Physics, 46th Course, Erice, Sicily, Italy, August 29-September 7, 2008.

Scientific paper

Results from PHENIX at RHIC in p-p and Au+Au collisions are presented from the perspective of measurements in p-p collisions at the CERN ISR which serve as a basis for many of the techniques used. Notable results include the equality of the suppression of inclusive pi0 and direct electrons (from the decay of heavy quarks) in the range of transverse momentuum 4 < pT < 9 GeV/c in central Au+Au collisions. This result appears to strongly disfavor the explanation of suppression as due to radiative energy loss of partons traversing a Quark Gluon Plasma but opens up a fundamental discussion of how Fermions get mass, whether all six quarks are nearly massless in a QGP and how to test this.

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