Enhanced charged Higgs production through W-Higgs fusion in W-b scattering

被引：10
作者：
Arhrib, Abdesslam [1 ,2 ]
Cheung, Kingman [2 ,3 ,4 ]
Lee, Jae Sik [2 ,5 ]
Lu, Chih-Ting [3 ]
机构：
[1] Fac Sci & Tech, Dept Math, BP 416, Tangier, Morocco
[2] Natl Ctr Theoret Sci, Div Phys, Hsinchu, Taiwan
[3] Natl Tsing Hua Univ, Dept Phys, Hsinchu 300, Taiwan
[4] Konkuk Univ, Sch Phys, Div Quantum Phases & Devices, Seoul 143701, South Korea
[5] Chonnam Natl Univ, Dept Phys, 300 Yongbong Dong, Kwangju 500757, South Korea
来源：
JOURNAL OF HIGH ENERGY PHYSICS | 2016年 / 05期
基金：
新加坡国家研究基金会;
关键词：
Beyond Standard Model; Higgs Physics; LARGE HADRON COLLIDER; SUPERSYMMETRIC STANDARD MODEL; GLUON FUSION; 2-HIGGS-DOUBLET MODEL; BOSONS; LHC; DECAY;
D O I：
10.1007/JHEP05(2016)093
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：
We study the associated production of a charged Higgs boson with a bottom quark and a light quark at the LHC via pp -> H(+/-)bj in the Two Higgs Doublet Models (2HDMs). Using the effective W approximation, we show that there is exact cancellation among various Feynman diagrams in high energy limit. This may imply that the production of charged Higgs can be significantly enhanced in the presence of large mass differences among the neutral Higgs bosons via W-+/--Higgs fusion in the pp -> H(+/-)bj process. Particularly, we emphasize the potential enhancement due to a light pseudoscalar boson A, which is still allowed by the current data by which we explicitly calculate the allowed regions in (M-A, tan beta) plane, and show that the production cross section can be as large as 0.1 pb for large tan beta. We also show that the transverse momentum distribution of the b quark can potentially distinguish the W-+/--A fusion diagram from the top diagram. Finally, we point out further enhancement when we go beyond the 2HDMs.
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页数：23
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