English

High $p_T$ Identified Particle Spectra

Nuclear Experiment 2008-08-01 v2

Abstract

I will present an overview of identified particle spectra at high pTp_T (pT>p_T{}^{>}_{\sim} 5 GeV/cc) in both p+p collisions and AA collisions at RHIC. In p+p collisions, summary of particle ratios of K, η\eta, ω\omega, ρ\rho, ϕ\phi, pp, pˉ\bar{p}, Λ\Lambda and heavy-flavor (open charm, J/ΨJ/\Psi) to π\pi at high-pt will be compiled and compared to the ratios of integrated yields. The spectra are used in xtx_t scaling study and compared to pQCD calculations. These will help us establish particle composition in jets and the quark and gluon contributions to hadron production at high pTp_T. Similar jet chemistry has been extracted in Au+Au data in search for a quantitative measure of color charge dependence of jet energy loss.

Keywords

Cite

@article{arxiv.0806.0200,
  title  = {High $p_T$ Identified Particle Spectra},
  author = {Zhangbu Xu},
  journal= {arXiv preprint arXiv:0806.0200},
  year   = {2008}
}

Comments

8 pages, 4 figures, Quark Matter 2008 proceedings, Jaipur, India, Feb., 2008

R2 v1 2026-06-21T10:46:21.999Z