Impersonating the Standard Model Higgs boson: Alignment without decoupling
Abstract
In models with an extended Higgs sector there exists an alignment limit, in which the lightest CP-even Higgs boson mimics the Standard Model Higgs. The alignment limit is commonly associated with the decoupling limit, where all non-standard scalars are significantly heavier than the Z boson. However, alignment can occur irrespective of the mass scale of the rest of the Higgs sector. In this work we discuss the general conditions that lead to “alignment without decoupling”, therefore allowing for the existence of additional non-standard Higgs bosons at the weak scale. The values of tan β for which this happens are derived in terms of the effective Higgs quartic couplings in general two-Higgs-doublet models as well as in supersymmetric theories, including the MSSM and the NMSSM. In addition, we study the information encoded in the variations of the SM Higgs-fermion couplings to explore regions in the mA – tan β parameter space.
- Authors:
-
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Univ. of Chicago, Chicago, IL (United States)
- Univ. of California, Santa Barbara, CA (United States); Argonne National Lab., Argonne, IL (United States); Northwestern Univ., Evanston, IL (United States)
- Univ. of Michigan, Ann Arbor, MI (United States)
- Univ. of Chicago, Chicago, IL (United States); Argonne National Lab., Argonne, IL (United States)
- Publication Date:
- Research Org.:
- Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- OSTI Identifier:
- 1226268
- Report Number(s):
- FERMILAB-PUB-13-455-T; MCTP-13-31; ANL-HEP-PR-13-50; EFI-13-27
Journal ID: ISSN 1029-8479; arXiv eprint number arXiv:1310.2248
- Grant/Contract Number:
- AC02-07CH11359
- Resource Type:
- Journal Article: Accepted Manuscript
- Journal Name:
- Journal of High Energy Physics (Online)
- Additional Journal Information:
- Journal Volume: 2014; Journal Issue: 4; Journal ID: ISSN 1029-8479
- Publisher:
- Springer Berlin
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; supersymmetry phenomenology
Citation Formats
Carena, Marcela, Low, Ian, Shah, Nausheen R., and Wagner, Carlos E. M. Impersonating the Standard Model Higgs boson: Alignment without decoupling. United States: N. p., 2014.
Web. doi:10.1007/JHEP04(2014)015.
Carena, Marcela, Low, Ian, Shah, Nausheen R., & Wagner, Carlos E. M. Impersonating the Standard Model Higgs boson: Alignment without decoupling. United States. https://doi.org/10.1007/JHEP04(2014)015
Carena, Marcela, Low, Ian, Shah, Nausheen R., and Wagner, Carlos E. M. 2014.
"Impersonating the Standard Model Higgs boson: Alignment without decoupling". United States. https://doi.org/10.1007/JHEP04(2014)015. https://www.osti.gov/servlets/purl/1226268.
@article{osti_1226268,
title = {Impersonating the Standard Model Higgs boson: Alignment without decoupling},
author = {Carena, Marcela and Low, Ian and Shah, Nausheen R. and Wagner, Carlos E. M.},
abstractNote = {In models with an extended Higgs sector there exists an alignment limit, in which the lightest CP-even Higgs boson mimics the Standard Model Higgs. The alignment limit is commonly associated with the decoupling limit, where all non-standard scalars are significantly heavier than the Z boson. However, alignment can occur irrespective of the mass scale of the rest of the Higgs sector. In this work we discuss the general conditions that lead to “alignment without decoupling”, therefore allowing for the existence of additional non-standard Higgs bosons at the weak scale. The values of tan β for which this happens are derived in terms of the effective Higgs quartic couplings in general two-Higgs-doublet models as well as in supersymmetric theories, including the MSSM and the NMSSM. In addition, we study the information encoded in the variations of the SM Higgs-fermion couplings to explore regions in the mA – tan β parameter space.},
doi = {10.1007/JHEP04(2014)015},
url = {https://www.osti.gov/biblio/1226268},
journal = {Journal of High Energy Physics (Online)},
issn = {1029-8479},
number = 4,
volume = 2014,
place = {United States},
year = {Thu Apr 03 00:00:00 EDT 2014},
month = {Thu Apr 03 00:00:00 EDT 2014}
}
Web of Science
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