Top quark polarization as a probe of charged Higgs bosons

被引：8
|
作者：
Arhrib, Abdesslam [1 ]
Jueid, Adil [2 ]
Moretti, Stefano [3 ]
机构：
[1] Univ Abdelmalek Essaadi, Dept Math, Fac Sci & Tech, B 416, Tangier, Morocco
[2] Shanghai Jiao Tong Univ, Dept Phys & Astron, INPAC, Shanghai Key Lab Particle Phys & Cosmol, Shanghai 200240, Peoples R China
[3] Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, Hants, England
来源：
PHYSICAL REVIEW D | 2018年 / 98卷 / 11期
基金：
欧盟地平线“2020”;
关键词：
PAIR PRODUCTION; STANDARD; DECAY; COLLIDER; SEARCH;
D O I：
10.1103/PhysRevD.98.115006
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We study the production and decay of a heavy charged Higgs boson in the bg -> tH(-) and H--> b (t) over bar processes at the Large Hadron Collider (LHC). We show that the chiral structure of the H- t (b) over bar vertex entering both stages is sensitive to the underlying Higgs mechanism of electroweak symmetry breaking (EWSB) and we specifically demonstrate that one could distinguish between two popular realizations of a 2-Higgs doublet model (2HDM) embedding a new H-+/- state, i.e., those with Type-1 and -Y Yukawa couplings. The chiral structure of such a vertex, which is different in the two cases, in turn triggers a particular spin state of the top quark which is then transmitted to its decay products. Hence, both inclusive rates and exclusive observables can be used to extract the presence of such a charged Higgs boson state in LHC data.
引用
收藏
页数：14
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