Higgs production and decay in models of a warped extra dimension with a bulk Higgs
Abstract
Warped extra-dimension models in which the Higgs boson is allowed to propagate in the bulk of a compact AdS5 space are conjectured to be dual to models featuring a partially composite Higgs boson. They offer a framework with which to investigate the implications of changing the scaling dimension of the Higgs operator, which can be used to reduce the constraints from electroweak precision data. In the context of such models, we calculate the cross section for Higgs production in gluon fusion and the H → γγ decay rate and show that they are finite (at one-loop order) as a consequence of gauge invariance. The extended scalar sector comprising the Kaluza-Klein excitations of the Standard Model scalars is constructed in detail. The largest effects are due to virtual KK fermions, whose contributions to the cross section and decay rate introduce a quadratic sensitivity to the maximum allowed value y* of the random complex entries of the 5D anarchic Yukawa matrices. We find an enhancement of the gluon-fusion cross section and a reduction of the H → γγ rate as well as of the tree-level Higgs couplings to fermions and electroweak gauge bosons. As a result, we perform a detailed study ofmore »
- Authors:
-
- Johannes Gutenberg Univ., Mainz (Germany)
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Univ. of Chicago, Chicago, IL (United States)
- Institut fur Theoretische Physik, Zurich (Switzerland)
- Johannes Gutenberg Univ., Mainz (Germany); Cornell Univ., Ithaca, NY (United States)
- Publication Date:
- Research Org.:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- OSTI Identifier:
- 1226285
- Report Number(s):
- FERMILAB-PUB-14-561-T; MITP-14-040
Journal ID: ISSN 1029-8479; arXiv eprint number arXiv:1408.5406; TRN: US1500547
- Grant/Contract Number:
- AC02-07CH11359
- Resource Type:
- Journal Article: Accepted Manuscript
- Journal Name:
- Journal of High Energy Physics (Online)
- Additional Journal Information:
- Journal Volume: 2015; Journal Issue: 1; Journal ID: ISSN 1029-8479
- Publisher:
- Springer Berlin
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Phenomenology of Field Theories in Higher Dimensions
Citation Formats
Archer, Paul R., Carena, Marcela, Carmona, Adrian, and Neubert, Matthias. Higgs production and decay in models of a warped extra dimension with a bulk Higgs. United States: N. p., 2015.
Web. doi:10.1007/JHEP01(2015)060.
Archer, Paul R., Carena, Marcela, Carmona, Adrian, & Neubert, Matthias. Higgs production and decay in models of a warped extra dimension with a bulk Higgs. United States. https://doi.org/10.1007/JHEP01(2015)060
Archer, Paul R., Carena, Marcela, Carmona, Adrian, and Neubert, Matthias. 2015.
"Higgs production and decay in models of a warped extra dimension with a bulk Higgs". United States. https://doi.org/10.1007/JHEP01(2015)060. https://www.osti.gov/servlets/purl/1226285.
@article{osti_1226285,
title = {Higgs production and decay in models of a warped extra dimension with a bulk Higgs},
author = {Archer, Paul R. and Carena, Marcela and Carmona, Adrian and Neubert, Matthias},
abstractNote = {Warped extra-dimension models in which the Higgs boson is allowed to propagate in the bulk of a compact AdS5 space are conjectured to be dual to models featuring a partially composite Higgs boson. They offer a framework with which to investigate the implications of changing the scaling dimension of the Higgs operator, which can be used to reduce the constraints from electroweak precision data. In the context of such models, we calculate the cross section for Higgs production in gluon fusion and the H → γγ decay rate and show that they are finite (at one-loop order) as a consequence of gauge invariance. The extended scalar sector comprising the Kaluza-Klein excitations of the Standard Model scalars is constructed in detail. The largest effects are due to virtual KK fermions, whose contributions to the cross section and decay rate introduce a quadratic sensitivity to the maximum allowed value y* of the random complex entries of the 5D anarchic Yukawa matrices. We find an enhancement of the gluon-fusion cross section and a reduction of the H → γγ rate as well as of the tree-level Higgs couplings to fermions and electroweak gauge bosons. As a result, we perform a detailed study of the correlated signal strengths for different production mechanisms and decay channels as functions of y*, the mass scale of Kaluza-Klein resonances and the scaling dimension of the composite Higgs operator.},
doi = {10.1007/JHEP01(2015)060},
url = {https://www.osti.gov/biblio/1226285},
journal = {Journal of High Energy Physics (Online)},
issn = {1029-8479},
number = 1,
volume = 2015,
place = {United States},
year = {Tue Jan 13 00:00:00 EST 2015},
month = {Tue Jan 13 00:00:00 EST 2015}
}
Web of Science
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