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arXiv 1506.01415hep-ph
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强子碰撞中喷流内部的强子碎裂

Hadron Fragmentation Inside Jets in Hadronic Collisions

Tom Kaufmann, Asmita Mukherjee, Werner Vogelsang

摘要:

我们提出了一个分析的次领先阶QCD计算的部分子截面的过程$pp\rightarrow ({\text{jet}} \,h)X$,其中一个特定的强子内观察到一个完全重建的喷注。为了得到分析结果,我们假设射流是相对窄的。我们表明,结果可以被铸造成一个简单的和系统的形式的基础上适当的通用射流功能的过程。我们确认我们的计算的有效性,通过比较文献中的下一个领先的顺序截面完全数值处理的蒙特卡罗积分技术与以前的结果。我们目前在LHC和RHIC实验的唯象结果。这表明,$pp\rightarrow ({\text{jet}} \,h)X$应该能够实现非常灵敏的碎裂函数探针,特别是胶子的碎裂函数探针。

英文摘要:

We present an analytical next-to-leading order QCD calculation of the partonic cross sections for the process $pp\rightarrow ({\text{jet}} \,h)X$, for which a specific hadron is observed inside a fully reconstructed jet. In order to obtain the analytical results, we assume the jet to be relatively narrow. We show that the results can be cast into a simple and systematic form based on suitable universal jet functions for the process. We confirm the validity of our calculation by comparing to previous results in the literature for which the next-to-leading order cross section was treated entirely numerically by Monte-Carlo integration techniques. We present phenomenological results for experiments at the LHC and at RHIC. These suggest that $pp\rightarrow ({\text{jet}} \,h)X$ should enable very sensitive probes of fragmentation functions, especially of the one for gluons.

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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