Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10724041 | Physics Letters B | 2011 | 5 Pages |
Abstract
Ï production in heavy ion collisions at RHIC energy is investigated. While the transverse momentum spectra of the ground state Ï(1s) are controlled by the initial state Cronin effect, the excited bb¯ states are characterized by the competition between the cold and hot nuclear matter effects and sensitive to the dissociation temperatures determined by the heavy quark potential. We emphasize that it is necessary to measure the excited heavy quark states in order to extract the early stage information in high energy nuclear collisions at RHIC.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics
Authors
Yunpeng Liu, Baoyi Chen, Nu Xu, Pengfei Zhuang,