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arXiv 1004.0764hep-phhep-ex
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在RHIC极化pp碰撞中的单包容喷流产生达到次领先的对数精度

Single-inclusive jet production in polarized pp collisions at RHIC to next-to-leading logarithmic accuracy

Daniel de Florian, Federico Wagner

摘要:

我们对极化pp碰撞中单包喷流产生的部分子截面进行了大对数修正的恢复。我们达到了下一个领先的对数精度与相应的匹配下一个领先的小锥近似的顺序进行计算,这个观察。本文给出了BNL-RHIC对撞机在\sqrt{S} =200 GeV和500 GeV时的数值计算结果。我们发现,自旋相关的截面的增强,特别是在高横向动量的射流,导致在一个相当小的增加双自旋不对称性A_LL为这个过程。

英文摘要:

We perform the resummation of large logarithmic corrections to the partonic cross sections for single-inclusive jet production in polarized pp collisions. We reach the next-to-leading logarithmic accuracy for this observable with the corresponding matching to the next-to-leading order calculation performed in the small-cone approximation. We present numerical results for the BNL-RHIC collider at \sqrt{S}=200 GeV and 500 GeV. We find an enhancement of the spin-dependent cross section, specially at high transverse momentum for the jet, resulting in a rather small increase of the double-spin asymmetry A_LL for this process.

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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