A new avenue to charged Higgs discovery in multi-Higgs models

被引：15

作者：

Dermisek, Radovan ^{[1
]}

Hall, Jonathan P. ^{[1
]}

Lunghi, Enrico ^{[1
]}

Shin, Seodong ^{[1
,2
,3
]}

机构：

[1] Indiana Univ, Dept Phys, Bloomington, IN 47405 USA

[2] Seoul Natl Univ, CTP, Seoul 151747, South Korea

[3] Seoul Natl Univ, Dept Phys & Astron, Seoul 151747, South Korea

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2014年 / 04期

关键词：

Higgs Physics; Beyond Standard Model; ELECTROWEAK SYMMETRY-BREAKING; BOSONS; SEARCH; COLLISIONS; FEYNRULES; ANATOMY; DECAYS; MASSES; MSSM;

D O I：

10.1007/JHEP04(2014)140

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：

Current searches for the charged Higgs at the LHC focus only on the tau nu, cs, and tb final states. Instead, we consider the process pp -> Phi -> W-+/- H--/+ -> W+ W- A where Phi is a heavy neutral Higgs boson, H (+/-) is a charged Higgs boson, and A is a light Higgs boson, with mass either below or above the threshold. The cross-section for this process is typically large when kinematically open since H-+/- -> W-+/- A can be the dominant decay mode of the charged Higgs. The final state we consider has two leptons and missing energy from the doubly leptonic decay of the W+ W- and possibly additional jets; it is therefore constrained by existing SM Higgs searches in the W+ W- channel. We extract these constraints on the cross-section for this process as a function of the masses of the particles involved. We also apply our results specifically to a type-II two Higgs doublet model with an extra Standard-Model-singlet and obtain new and powerful constraints on m(H +/-) and tan beta. We point out that a slightly modified version of this search, with more dedicated cuts, could be used to possibly discover the charged Higgs, either with existing data or in the future.

引用

页数：35

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