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arXiv 0910.2364hep-ph
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PP中重味的产生和QCD到LHC能区的重离子碰撞

Heavy Flavour Production in pp and Heavy Ion Collisions in QCD Up to LHC Energies

C. Merino, C. Pajares, M. M. Ryzhinskiy, Yu. M. Shabelski, A. G. Shuvaev

摘要:

在微扰QCD框架下研究了pp碰撞中的粲产生。两个参数的值,即粲夸克质量$m_c$和QCD尺度μ ^2,是通过理论计算与实验数据的比较确定的。将RHIC的魅力和美丽产生的数据与k_T因子分解方法的预测和标准NLO QCD进行了比较。计算结果低估了STAR协作数据。可能的核效应的作用进行了讨论。最后给出了LHC的能量预测。

英文摘要:

Charm production in pp collisions is considered in the framework of perturbative QCD. The values of two parameters, the charm quark mass $m_c$ and the QCD scale mu^2, are determined from the comparison of the theoretical calculations with experimental data. The RHIC data on charm and beauty production are compared with the k_T-factorization approach predictions and with standard NLO QCD. The calculated results underestimate the STAR Collaboration data. The role of possible nuclear effects is discussed. The predictions for LHC energies are also given.

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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