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arXiv 1602.08133hep-ph
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在LHC上希格斯玻色子加喷流产生中高阶修正的恢复

Resummation of High Order Corrections in Higgs Boson Plus Jet Production at the LHC

Peng Sun, Joshua Isaacson, C. -P. Yuan, Feng Yuan

摘要:

利用横向动量相关(TMD)分解方法,在强相互作用耦合的展开中,对各阶的大对数贡献进行求和,研究了多部分子辐射对LHC中希格斯玻色子玻色子和喷流产生的影响.结果表明,合适的重定尺度应该是喷流的横向动量,而不是TMD重定形式中通常使用的部分子质心能量。此外,希格斯玻色子的横向动量分布,特别是在喷流横向动量的下截止附近,只能通过重新计算来可靠地预测,而重新计算不存在固定阶计算中存在的所谓的Sudakov肩部奇异性问题。

英文摘要:

We study the effect of multiple parton radiation to Higgs boson plus jet production at the LHC, by applying the transverse momentum dependent (TMD) factorization formalism to resum large logarithmic contributions to all orders in the expansion of the strong interaction coupling. We show that the appropriate resummation scale should be the jet transverse momentum, rather than the partonic center of mass energy which has been normally used in the TMD resummation formalism. Furthermore, the transverse momentum distribution of the Higgs boson, particularly near the lower cut-off applied on the jet transverse momentum, can only be reliably predicted by the resummation calculation which is free of the so-called Sudakov-shoulder singularity problem, present in fixed-order calculations.

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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