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arXiv 1306.5032nucl-thhep-ph
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LHC重离子碰撞中的B_(10)\prime产生和B_(10)衰变

ψ^\prime Production and B Decay in Heavy Ion Collisions at LHC

Baoyi Chen, Yunpeng Liu, Kai Zhou, Pengfei Zhuang

摘要:

与J/π相比,激发粲偶素态π ^ \prime是松散束缚的,其产额主要来自B强子衰变。基于输运方法,我们研究了LHC能区A+A碰撞与p+p碰撞的N(N ^ \prime)/N(J/N)的双比.我们发现,在LHC的重离子碰撞中,初始阶段的原始产生和热介质中的再生对产生的双^ \prime并不重要,半中心和中心碰撞中的双比由B衰变控制.

英文摘要:

In comparison with J/ψ, the excited charmonium state ψ^\prime is loosely bounded and its yield is dominantly from the B-hadron decay. Based on the transport approach, we study the double ratio of N(ψ^\prime)/N(J/ψ) from A+A collisions to that from p+p collisions at LHC energy. We found that the primordial production in the initial stage and the regeneration in the hot medium are not significant for ψ^\prime production in heavy ion collisions at LHC and the double ratio in semi-central and central collisions is controlled by the B decay.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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