First Results from PHENIX at RHIC

2001/05/25 by Bazilevsky, A.
#FOS: Physical sciences #Nuclear Experiment (nucl-ex)

paper · doi:10.48550/arxiv.nucl-ex/0105017

Abstract

The first results from Au-Au collisions at √s_NN=130 GeV obtained with the PHENIX detector in the Year 2000 run at RHIC are presented. The mid-rapidity charged particle multiplicity and transverse energy per participating nucleon rise steadily with the number of participants, such that transverse energy per charged particle remains relatively constant as a function of centrality. Identified charged hadron spectra as well as p/p and K⁺/K^- ratios are discussed. Charged particle and neutral pion transverse momentum distributions in peripheral nuclear collisions are consistent with point-like scaling. The spectra at high p_t from central collisions are significantly suppressed when compared to a simple superposition of binary nucleon-nucleon collisions.

Related

• QCD hard scattering results from PHENIX at RHIC
• Au+Au Collisions: the Suppression of High Transverse Momentum in Neutral pion Spectra
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• Centrality Dependence of Inclusive Identified Hadrons in PHENIX