Nuclear modification factor for J/ψ production in nucleus-nucleus collisions

XU Xiao-Ming; ZHOU Jie

doi:10.1088/1674-1137/35/5/011

Chinese Physics C> 2011, Vol. 35> Issue(5) : 463-466 DOI: 10.1088/1674-1137/35/5/011

Nuclear modification factor for J/ψ production in nucleus-nucleus collisions

XU Xiao-Ming ,
ZHOU Jie

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Abstract：
The STAR Collaboration has offered an eminent nuclear modification factor of J/ψ at high p_T and midrapidity produced in Cu-Cu collisions at √s_NN=200 GeV. Recalling a prediction, we can understand that the feature of high-p_T nuclear modification factor is related to cc produced by 2 → 1 and 2 → 2 partonic processes in deconfined matter, particularly in the prethermal stage and to the recombination of c and c. The nuclear modification factor at high p_T is sensitive to the earliest form of deconfined matter that does not have a temperature.

References

[1]

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XU Xiao-Ming and ZHOU Jie. Nuclear modification factor for J/ψ production in nucleus-nucleus collisions[J]. Chinese Physics C, 2011, 35(5): 463-466. doi: 10.1088/1674-1137/35/5/011

XU Xiao-Ming and ZHOU Jie. Nuclear modification factor for J/ψ production in nucleus-nucleus collisions[J]. Chinese Physics C, 2011, 35(5): 463-466. doi: 10.1088/1674-1137/35/5/011 shu

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Received: 2010-08-12
Revised: 2010-11-16

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Nuclear modification factor for J/ψ production in nucleus-nucleus collisions

Received Date: 2010-08-12

Accepted Date: 2010-11-16

Available Online: 2011-05-05

Abstract: The STAR Collaboration has offered an eminent nuclear modification factor of J/ψ at high p_T and midrapidity produced in Cu-Cu collisions at √s_NN=200 GeV. Recalling a prediction, we can understand that the feature of high-p_T nuclear modification factor is related to cc produced by 2 → 1 and 2 → 2 partonic processes in deconfined matter, particularly in the prethermal stage and to the recombination of c and c. The nuclear modification factor at high p_T is sensitive to the earliest form of deconfined matter that does not have a temperature.

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