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arXiv 0710.4373hep-ph
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奇怪在LHC仍然奇怪吗?

Is Strangeness Still Strange at the LHC?

G. G. Barnafoldi, G. Fai, P. Levai, B. A. Cole, G. Papp

摘要:

奇异值的产生是在一个基于pQCD的模型(包括核效应)中计算的高横动量部门,其中pQCD预计将工作得很好。我们研究了在pp和重离子碰撞中π介子、K介子、质子和λ的产生。考虑了AA碰撞中的部分子能量损失。我们比较奇怪的非奇怪介子和重子的比例在RHIC的数据,并作出预测的大型强子对撞机。我们发现,这些比率显着偏离单位不仅在RHIC,但也在大型强子对撞机,这表明奇怪的特殊作用,在这两种能量。

英文摘要:

Strangeness production is calculated in a pQCD-based model (including nuclear effects) in the high transverse momentum sector, where pQCD is expected to work well. We investigate pion, kaon, proton and lambda production in pp and heavy-ion collisions. Parton energy loss in AA collisions is taken into account. We compare strange-to-non-strange meson and baryon ratios to data at RHIC, and make predictions for the LHC. We find that these ratios significantly deviate from unity not only at RHIC but also at the LHC, indicating the special role of strangeness at both energies.

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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