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Title: Two Higgs doublet model with vectorlike leptons and contributions to pp → W W and H → W W

Journal Article · · Journal of High Energy Physics (Online)
 [1];  [2];  [2]
  1. Indiana Univ., Bloomington, IN (United States); Seoul National Univ. (Korea, Republic of)
  2. Indiana Univ., Bloomington, IN (United States)
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In this paper, we study a two Higgs doublet model extended by vectorlike leptons mixing with one family of standard model leptons. Generated flavor violating couplings between heavy and light leptons can dramatically alter the decay patterns of heavier Higgs bosons. We focus on pp → H → ν4νμ → W μνμ, where ν4 is a new neutral lepton, and study possible effects of this process on the measurements of pp → W W and H → W W since it leads to the same final states. We discuss predictions for contributions to pp → W W and H →WW and their correlations from the region of the parameter space that satisfies all available constraints including precision electroweak observables and from pair production of vectorlike leptons. Large contributions, close to current limits, favor small tan β region of the parameter space. We find that, as a result of adopted cuts in experimental analyses, the contribution to pp → W W can be an order of magnitude larger than the contribution to H → W W . Thus, future precise measurements of pp → W W will further constrain the parameters of the model. Also, we also consider possible contributions to pp → W W from the heavy Higgs decays into a new charged lepton e4 (H → e4μ → W μνμ), exotic SM Higgs decays, and pair production of vectorlike leptons.

Research Organization:
Indiana Univ., Bloomington, IN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP)
Grant/Contract Number:
SC0010120
OSTI ID:
1327251
Journal Information:
Journal of High Energy Physics (Online), Vol. 2016, Issue 2; ISSN 1029-8479
Publisher:
Springer BerlinCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 25 works
Citation information provided by
Web of Science

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Minimal Vector-like leptonic Dark Matter and Signatures at the LHC text January 2015

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Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Higgs Physics
Beyond Standard Model