Constraints on anomalous quartic gauge couplings via Zγjj production at the LHC

被引：20
|
作者：
Yang, Ji-Chong [1 ]
Guo, Yu-Chen [1 ]
Yue, Chong-Xing [1 ]
Fu, Qing [1 ]
机构：
[1] Liaoning Normal Univ, Dept Phys, Dalian 116029, Peoples R China
来源：
PHYSICAL REVIEW D | 2021年 / 104卷 / 03期
基金：
中国国家自然科学基金;
关键词：
PROTON-PROTON COLLISIONS; VECTOR BOSON SCATTERING; 2; JETS; PP COLLISIONS; ASSOCIATION; PARTICLES; EVENTS;
D O I：
10.1103/PhysRevD.104.035015
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
In this paper, we investigate the contributions of anomalous quartic gauge couplings (aQGCs) to Z gamma jj production at the Large Hadron Collider in the context of Standard Model effective theory (SMEFT). When the energy scale is large, the validity of SMEFT becomes an important issue. To ensure the validity, the unitarity bound is applied in a model independent approach, which is found to have significant suppressive effects on the signals of O-Mi operators. The kinematic and polarization features of the aQGC signals are also studied. The polarization effect is useful to highlight the signals of O-Ti operators. The sensitivity estimates on dimension-8 operators with unitarity bounds at root s = 14 TeV arc obtained.
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页数：15
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