High scale flavor alignment in twoHiggs doublet models and its phenomenology
Abstract
The most general twoHiggs doublet model (2HDM) includes potentially large sources of flavor changing neutral currents (FCNCs) that must be suppressed in order to achieve a phenomenologically viable model. The flavor alignment ansatz postulates that all Yukawa coupling matrices are diagonal when expressed in the basis of masseigenstate fermion fields, in which case treelevel Higgsmediated FCNCs are eliminated. In this work, we explore models with the flavor alignment condition imposed at a very high energy scale, which results in the generation of Higgsmediated FCNCs via renormalization group running from the high energy scale to the electroweak scale. Using the current experimental bounds on flavor changing observables, constraints are derived on the aligned 2HDM parameter space. In the favored parameter region, we analyze the implications for Higgs boson phenomenology.
 Authors:
 Univ. of Cincinnati, OH (United States). Dept. of Physics
 Univ. of California, Santa Cruz, CA (United States). Santa Cruz Inst. for Particle Physics
 Publication Date:
 Research Org.:
 Univ. of California, Santa Cruz, CA (United States); Univ. of Cincinnati, OH (United States)
 Sponsoring Org.:
 USDOE Office of Science (SC), High Energy Physics (HEP) (SC25); National Science Foundation (NSF)
 OSTI Identifier:
 1424020
 Grant/Contract Number:
 SC0010107; PHY1125915; PHY1066293
 Resource Type:
 Journal Article: Accepted Manuscript
 Journal Name:
 Journal of High Energy Physics (Online)
 Additional Journal Information:
 Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2017; Journal Issue: 6; Journal ID: ISSN 10298479
 Publisher:
 Springer Berlin
 Country of Publication:
 United States
 Language:
 English
 Subject:
 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Beyond Standard Model; heavy quark physics; Higgs physics
Citation Formats
Gori, Stefania, Haber, Howard E., and Santos, Edward. High scale flavor alignment in twoHiggs doublet models and its phenomenology. United States: N. p., 2017.
Web. doi:10.1007/JHEP06(2017)110.
Gori, Stefania, Haber, Howard E., & Santos, Edward. High scale flavor alignment in twoHiggs doublet models and its phenomenology. United States. doi:10.1007/JHEP06(2017)110.
Gori, Stefania, Haber, Howard E., and Santos, Edward. Wed .
"High scale flavor alignment in twoHiggs doublet models and its phenomenology". United States.
doi:10.1007/JHEP06(2017)110. https://www.osti.gov/servlets/purl/1424020.
@article{osti_1424020,
title = {High scale flavor alignment in twoHiggs doublet models and its phenomenology},
author = {Gori, Stefania and Haber, Howard E. and Santos, Edward},
abstractNote = {The most general twoHiggs doublet model (2HDM) includes potentially large sources of flavor changing neutral currents (FCNCs) that must be suppressed in order to achieve a phenomenologically viable model. The flavor alignment ansatz postulates that all Yukawa coupling matrices are diagonal when expressed in the basis of masseigenstate fermion fields, in which case treelevel Higgsmediated FCNCs are eliminated. In this work, we explore models with the flavor alignment condition imposed at a very high energy scale, which results in the generation of Higgsmediated FCNCs via renormalization group running from the high energy scale to the electroweak scale. Using the current experimental bounds on flavor changing observables, constraints are derived on the aligned 2HDM parameter space. In the favored parameter region, we analyze the implications for Higgs boson phenomenology.},
doi = {10.1007/JHEP06(2017)110},
journal = {Journal of High Energy Physics (Online)},
number = 6,
volume = 2017,
place = {United States},
year = {Wed Jun 21 00:00:00 EDT 2017},
month = {Wed Jun 21 00:00:00 EDT 2017}
}
Web of Science

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