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The BRAHMS Experiment at the Relativistic Heavy Ion Collider
Y. K. Lee,I. G. Bearden,D. Beavis,C. Besliu,Y. Blyakhman,J. Brzychczyk,B. Budick,H. Bggild,C. Chasman,C. H. Christensen,P. Christiansen,J. Cibor,R. Debbe,E. Enger,J. J. Gaardhje,K. Grotowski,K. Hagel 한국물리학회 2003 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.43 No.I
The BRAHMS probes the hot and dense nuclear matter at the RHIC which has reached its design energy of psNN = 200 GeV for Au + Au collisions. The BRAHMS uses magnetic spectrometers for hadrons covering a large phase space 0 < y < 4 with good particle identification and momentum resolution. A comprehensive investigation of multiplicity distributions of emitted charged particles is carried out. Ratios of yields of antiparticles to particles are also measured as a function of rapidity. Rapidity dependent net-proton yield indicates that substantial transparency has been achieved in these collisions. Transverse momentum spectra of charged hadrons are measured up to 5 GeV/c which indicates a significant medium eect when compared to nucleon + nucleon reference spectra.