Search for the singlet vector-like lepton at future e+ e- colliders

被引：0
|
作者：
Shang, Liangliang [1 ,2 ]
Wang, Mengmeng [1 ,2 ]
Heng, Zhaoxia [1 ,2 ]
Yang, Bingfang [1 ,2 ]
机构：
[1] Henan Normal Univ, Sch Phys, Xinxiang 453007, Henan, Peoples R China
[2] Henan Normal Univ, Natl Demonstrat Ctr Expt Phys Educ, Xinxiang 453007, Henan, Peoples R China
来源：
EUROPEAN PHYSICAL JOURNAL C | 2021年 / 81卷 / 05期
基金：
中国国家自然科学基金;
关键词：
D O I：
10.1140/epjc/s10052-021-09152-2
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
Searching for the new particles beyond the standard model (SM) is an important way to probe new physics beyond the SM. In one class of newparticles there are nonchiral color singlet fermions that couple to the SM leptons, that is vector-like leptons (VLLs), which have been widely concerned in experiment and theory. The existing literature shows that the singlet VLLs suffer from a big difficult challenge for discovery at future proton-proton colliders. In this paper, we study the prospects of searching for the singlet VLLs in pure leptonic and fully hadronic channels at e+ ecolliders. We find that there is an opportunity for excluding the region m t +/-. [180 GeV, 240 GeV] with L. [3.0 fb-1, 14.9 fb-1] ([0.1 fb-1, 0.3 fb-1]) at ILC of v s = 500 GeV, the region m t +/-. [240 GeV, 450 GeV] with L. [9.9 fb-1, 23.1 fb-1] ([0.2 fb-1, 0.3 fb-1]) at ILC of v s = 1000 GeV and the region m t +/-. [450 GeV, 700 GeV] with L. [52.1 fb-1, 197.9 fb-1] ([2.21 fb-1, 4.5 fb-1 v]) at CLIC of s = 1500 GeV in the pure leptonic (fully hadronic) channel. It is more optimistic for excluding and discovering the singlet VLL through the fully hadronic channel at future high energy e+ e- colliders.
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页数：12
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