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Advances in High Energy Physics
Volume 2015 (2015), Article ID 137058, 9 pages
http://dx.doi.org/10.1155/2015/137058
Research Article

On Extraction of Chemical Potentials of Quarks from Particle Transverse Momentum Spectra in High Energy Collisions

Institute of Theoretical Physics, Shanxi University, Taiyuan, Shanxi 030006, China

Received 5 August 2014; Accepted 11 December 2014

Academic Editor: Bao-Chun Li

Copyright © 2015 Hong Zhao and Fu-Hu Liu. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The publication of this article was funded by SCOAP3.

Abstract

We present two methods to extract the chemical potentials of quarks in high energy collisions. The first method is based on the ratios of negatively/positively charged particles, and the temperatures extracted from the transverse momentum spectra of related hadrons are needed. The second method is based on the chemical potentials of some particles, and we also need the transverse momentum spectra of related hadrons. To extract the quark chemical potentials, we would like to propose experimental collaborations to measure simultaneously not only the transverse momentum spectra of , , , , , and , but also those of , , , and (even those of , , and ) in high energy nuclear collisions.