Rapidity dependence of hadron PT spectra in central Au+Au collisions at = 200 GeV
The transverse momentum spectra for identified hadrons at different rapidities in central Au+Au collisions at = 200 GeV are studied in a quark combination model. The results for PT spectra of π±,K±, p(p-) and for the p/π ratios in a broader PT range at midrapidity agree well with the data. The transverse momentum spectra of pions, protons and antiprotons at various rapidities y 1, η= 2.2 and y≈3.2 are calculated and compared with the data.
作 者： SHAO Feng-Lan SONG Jun XIE Qu-Bing 作者单位： SHAO Feng-Lan(Department of Physics, Quill Normal University, Qufu 273165, China)SONG Jun,XIE Qu-Bing(Department of Physics, Shandong University, Ji'nan 250100, China)
刊 名： 中国物理C（英文版） ISTIC 英文刊名： CHINESE PHYSICS C 年，卷(期)： 2009 33(6) 分类号： O4 关键词： relativistic heavy ion collisions hadronization quark combination