Identified charged hadron production at high pT in {sNN}\sqrt{s_{NN}}′00GeV Au

详细信息    查看全文

• 作者：M. Konno
• 刊名：The European Physical Journal C - Particles and Fields
• 出版年：2007
• 出版时间：January, 2007
• 年：2007
• 卷：49
• 期：1
• 页码：29-34
• 全文大小：699 KB
• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Elementary Particles and Quantum Field Theory
  Nuclear Physics, Heavy Ions and Hadrons
  Physics beyond the Standard Model
  Measurement Science and Instrumentation
  Astronomy, Astrophysics and Cosmology
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1434-6052

文摘

Identified hadron analyses in heavy ion collisions at RHIC show particle-type dependences of hadron yields, especially a baryon/meson difference at intermediate p_T (2–5 GeV/c). In {s_NN}\sqrt{s_{NN}}=200 GeV Au+Au collisions, there is a significant suppression in meson yields compared to expectations from scaled p+p results. In contrast, a large enhancement of baryons relative to mesons is observed at intermediate p_T. The p_T reach of charged hadron identification has been extended by high statistics Au+Au data and the introduction of an aerogel Cherenkov detector. We can now study the identified charged hadron production at higher p_T using the PHENIX detector. In this paper, we present identified charged hadron p_T spectra, particle ratios, nuclear modification factors in Au+Au collisions at {s_NN}\sqrt{s_{NN}}=200 GeV.