Flavor changing heavy Higgs interactions with leptons at hadron colliders

In a general two Higgs doublet model, we study flavor changing neutral Higgs (FCNH) decays into leptons at hadron colliders, pp→ϕ0→τ∓μ±+X, where ϕ0 could be a CP-even scalar (h0, H0) or a CP-odd pseudoscalar (A0). The light Higgs boson h0 is found to resemble closely the Standard Model Higgs boson a...

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Bibliographic Details
Published in:Physics letters. B 2019-08, Vol.795 (C), p.371-378
Main Authors: Hou, Wei-Shu, Jain, Rishabh, Kao, Chung, Kohda, Masaya, McCoy, Brent, Soni, Amarjit
Format: Article
Language:English
Subjects:
CMS
Flavor
Hadron Colliders
Higgs
Leptons
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
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Summary:In a general two Higgs doublet model, we study flavor changing neutral Higgs (FCNH) decays into leptons at hadron colliders, pp→ϕ0→τ∓μ±+X, where ϕ0 could be a CP-even scalar (h0, H0) or a CP-odd pseudoscalar (A0). The light Higgs boson h0 is found to resemble closely the Standard Model Higgs boson at the Large Hadron Collider. In the alignment limit of cos⁡(β−α)≅0 for h0–H0 mixing, FCNH couplings of h0 are naturally suppressed, but such couplings of the heavier H0,A0 are sustained by sin⁡(β−α)≃1. We evaluate physics backgrounds from dominant processes with realistic acceptance cuts and tagging efficiencies. We find promising results for s=14 TeV, which we extend further to s=27 TeV and 100 TeV future pp colliders.
ISSN:0370-2693
1873-2445
DOI:10.1016/j.physletb.2019.06.044