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arXiv 2005.10707hep-ph
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用NLO QCD + EW修正和部分子簇射效应在强子对撞机上产生$WWγ$

$WWγ$ production at hadron colliders with NLO QCD+EW corrections and parton shower effects

Jian-Wen Zhu, Ren-You Zhang, Wen-Gan Ma, Qiang Yang, Yi Jiang

备注：
29 pages, 6 figures
发表信息：
J. Phys. G: Nucl. Part. Phys. 47, 055006 (2020)
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摘要：

质子-质子碰撞中$W^+W^-γ$的产生为研究电弱对称性破缺机制提供了一个窗口，也为研究三次和四次规范耦合提供了一个直接的途径。对规范玻色子自相互作用的精确研究也可能为标准模型之外的新物理的存在提供证据。本文研究了LHC和未来高能质子-质子对撞机QCD+EW NLO的$W^+W^-γ$产生，包括部分子簇射效应。我们发现，来自光子诱导的贡献（即，$qγ$ -和$γγ$ -引发的）通道是不可忽略的，因为光子亮度可以随着碰撞能量的增加而显著增强，并且大的真实喷流发射QCD和EW修正可以通过喷流否决事件选择方案被充分抑制。此外，我们还研究了由PDF不确定性和因式分解/重整化尺度依赖引起的理论误差。

英文摘要：

$W^+W^-γ$ production in proton-proton collision provides a window to the mechanism of electroweak symmetry breaking and a direct accessment to triple and quartic gauge couplings. Precision study of gauge boson self-interactions may also provide evidence of existence of new physics beyond the Standard Model. In this paper, we study the $W^+W^-γ$ production at the LHC and future higher energy proton-proton colliders at the QCD+EW NLO including parton shower effects. We find that the contributions from the photon-induced (i.e., $qγ$- and $γγ$-initiated) channels are non-negligible since the photon luminosity can be enhanced significantly with the increment of colliding energy, and the large real jet emission QCD and EW corrections can be depressed sufficiently by applying the jet veto event selection scheme. Moreover, we also investigate the theoretical errors arising from the PDF uncertainty and the factorization/renormalization scale dependence.

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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