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arXiv 0706.3442hep-ph
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强子碰撞中的光子喷注关联

Photon-jet correlations in hadronic collisions

T. Pietrycki, A. Szczurek

摘要:

本文比较了RHIC、Tevatron和LHC能区$pp$和$p \bar p$碰撞中光子-喷注关联的$k_t$ -因子化方法和次领先阶共线-因子化方法的结果。讨论了光子和喷流横动量在方位角和二维空间中的关联。不同的未积分部分子分布(UPDF)包括在$k_t$ -因式分解方法。结果取决于所使用的MTF。为了比较,示出了NLO共线因子分解的结果。

英文摘要:

We compare results of $k_t$-factorization approach and next-to-leading order collinear-factorization approach for photon-jet correlations in $pp$ and $p \bar p$ collisions at RHIC, Tevatron and LHC energies. We discuss correlations in azimuthal angle as well as in two-dimensional space of transverse momenta of photon and jet. Different unintegrated parton distributions (UPDF) are included in the $k_t$-factorization approach. The results depend on UPDFs used. The results of NLO collinear-factorization are shown for comparison.

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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