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Title: Lepton-specific two-Higgs-doublet model: Experimental constraints and implication on Higgs phenomenology

Abstract

We examine various direct and indirect constraints on the lepton-specific two-Higgs-doublet model and scrutinize the property of the Higgs bosons in the allowed parameter space. We find that in the allowed parameter space the CP-odd Higgs boson A is rather light (m{sub A}<30 GeV with 95% possibility), which is composed dominantly by the leptonic Higgs and decays dominantly into {tau}{sup +}{tau}{sup -}; while the standard-model-like Higgs boson h (responsible largely for electroweak symmetry breaking) decays dominantly in the mode h{yields}AA{yields}4{tau} with a large decay width, which will make the Higgs discovery more difficult at the LHC, whereas this scenario predicts a branching ratio Br(Z{yields}{tau}{sup +}{tau}{sup -}A) ranging from 10{sup -5} to 10{sup -4}, which may be accessible at the GigaZ option of the International Linear Collider.

Authors:
; ;  [1];  [2]
  1. College of Physics and Information Engineering, Henan Normal University, Xinxiang 453007 (China)
  2. Key Laboratory of Frontiers in Theoretical Physics, Institute of Theoretical Physics, Academia Sinica, Beijing 100190 (China)
Publication Date:
OSTI Identifier:
21325192
Resource Type:
Journal Article
Journal Name:
Physical Review. D, Particles Fields
Additional Journal Information:
Journal Volume: 80; Journal Issue: 7; Other Information: DOI: 10.1103/PhysRevD.80.071701; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0556-2821
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; BRANCHING RATIO; CERN LHC; GEV RANGE 10-100; HIGGS BOSONS; HIGGS MODEL; LEPTONS; LINEAR COLLIDERS; PARTICLE DECAY; STANDARD MODEL; SYMMETRY BREAKING; TAU PARTICLES

Citation Formats

Junjie, Cao, Peihua, Wan, Lei, Wu, Jinmin, Yang, and Kavli Institute for Theoretical Physics China, Academia Sinica, Beijing 100190. Lepton-specific two-Higgs-doublet model: Experimental constraints and implication on Higgs phenomenology. United States: N. p., 2009. Web. doi:10.1103/PHYSREVD.80.071701.
Junjie, Cao, Peihua, Wan, Lei, Wu, Jinmin, Yang, & Kavli Institute for Theoretical Physics China, Academia Sinica, Beijing 100190. Lepton-specific two-Higgs-doublet model: Experimental constraints and implication on Higgs phenomenology. United States. https://doi.org/10.1103/PHYSREVD.80.071701
Junjie, Cao, Peihua, Wan, Lei, Wu, Jinmin, Yang, and Kavli Institute for Theoretical Physics China, Academia Sinica, Beijing 100190. 2009. "Lepton-specific two-Higgs-doublet model: Experimental constraints and implication on Higgs phenomenology". United States. https://doi.org/10.1103/PHYSREVD.80.071701.
@article{osti_21325192,
title = {Lepton-specific two-Higgs-doublet model: Experimental constraints and implication on Higgs phenomenology},
author = {Junjie, Cao and Peihua, Wan and Lei, Wu and Jinmin, Yang and Kavli Institute for Theoretical Physics China, Academia Sinica, Beijing 100190},
abstractNote = {We examine various direct and indirect constraints on the lepton-specific two-Higgs-doublet model and scrutinize the property of the Higgs bosons in the allowed parameter space. We find that in the allowed parameter space the CP-odd Higgs boson A is rather light (m{sub A}<30 GeV with 95% possibility), which is composed dominantly by the leptonic Higgs and decays dominantly into {tau}{sup +}{tau}{sup -}; while the standard-model-like Higgs boson h (responsible largely for electroweak symmetry breaking) decays dominantly in the mode h{yields}AA{yields}4{tau} with a large decay width, which will make the Higgs discovery more difficult at the LHC, whereas this scenario predicts a branching ratio Br(Z{yields}{tau}{sup +}{tau}{sup -}A) ranging from 10{sup -5} to 10{sup -4}, which may be accessible at the GigaZ option of the International Linear Collider.},
doi = {10.1103/PHYSREVD.80.071701},
url = {https://www.osti.gov/biblio/21325192}, journal = {Physical Review. D, Particles Fields},
issn = {0556-2821},
number = 7,
volume = 80,
place = {United States},
year = {2009},
month = {10}
}