Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Howard E. Haber"'
Publikováno v:
Journal of High Energy Physics (JHEP)
Journal of High Energy Physics, Vol 2019, Iss 1, Pp 1-55 (2019)
Journal of High Energy Physics
Journal of High Energy Physics, Vol 2019, Iss 1, Pp 1-55 (2019)
Journal of High Energy Physics
We explore some aspects of models with two and three SU(2) scalar doublets that lead to mass degeneracies among some of the physical scalars. In Higgs sectors with two scalar doublets, the exact degeneracy of scalar masses, without an artificial fine
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7ce28672fda899fd79d5f7d234f474f7
https://hdl.handle.net/11250/2642957
https://hdl.handle.net/11250/2642957
Autor:
Howard E. Haber
Publikováno v:
International Journal of Modern Physics A. 36:2130003
In addition to the diagonalization of a normal matrix by a unitary similarity transformation, there are two other types of diagonalization procedures that sometimes arise in quantum theory applications -- the singular value decomposition and the Auto
Publikováno v:
Journal of High Energy Physics
Journal of High Energy Physics, Vol 2018, Iss 10, Pp 1-25 (2018)
Journal of High Energy Physics, Vol 2018, Iss 10, Pp 1-25 (2018)
This is the second of a series of papers that explores the physical parameterization, sum rules and unitarity bounds arising from a non-minimal scalar sector of the Standard Model (SM) that consists of N Higgs doublets. In this paper, we focus on the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d13ed348d77fd937e6dd1ddb5e8899fb
http://arxiv.org/abs/1808.07123
http://arxiv.org/abs/1808.07123
Publikováno v:
Journal of High Energy Physics (JHEP)
Journal of High Energy Physics
Journal of High Energy Physics, Vol 2018, Iss 12, Pp 1-49 (2018)
Journal of High Energy Physics
Journal of High Energy Physics, Vol 2018, Iss 12, Pp 1-49 (2018)
The Standard Model (SM)-like couplings of the observed Higgs boson impose strong constraints on the structure of any extended Higgs sector. We consider the theoretical properties and the phenomenological implications of a generic two Higgs doublet mo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2afb07fc7b30e8a52ddddcbbb6f51595
Publikováno v:
Journal of High Energy Physics, Vol 2017, Iss 11, Pp 1-67 (2017)
Journal of High Energy Physics
Journal of High Energy Physics
If the scalar sector of the Standard Model is non-minimal, one might expect multiple generations of the hypercharge-1/2 scalar doublet analogous to the generational structure of the fermions. In this work, we examine the structure of a Higgs sector c
Publikováno v:
Journal of High Energy Physics
Journal of High Energy Physics, Vol 2017, Iss 6, Pp 1-52 (2017)
Journal of High Energy Physics, Vol 2017, Iss 6, Pp 1-52 (2017)
The most general two-Higgs 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
Publikováno v:
Journal of High Energy Physics
It is possible that the electroweak scale is low due to the fine-tuning of microscopic parameters, which can result from selection effects. The experimental discovery of new light fundamental scalars other than the Standard Model Higgs boson would se
Publikováno v:
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
We examine the constraints on the two Higgs doublet model (2HDM) due to the stability of the scalar potential and absence of Landau poles at energy scales below the Planck scale. We employ the most general 2HDM that incorporates an approximately Stan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::005183a36a7007cfe25d101dff9fc2df
Publikováno v:
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
OpenAIRE
arXiv.org e-Print Archive
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
OpenAIRE
arXiv.org e-Print Archive
We consider the two-Higgs-doublet model as a framework in which to evaluate the viability of scenarios in which the sign of the coupling of the observed Higgs boson to down-type fermions (in particular, $b$-quark pairs) is opposite to that of the Sta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3ea94f8cb7ccb49c9cfc07ea1d041b07
http://arxiv.org/abs/1403.4736
http://arxiv.org/abs/1403.4736
Autor:
Wolfgang Hollik, S. Heinemeyer, Marcela Carena, Howard E. Haber, Carlos E. M. Wagner, Georg Weiglein
Publikováno v:
Nuclear Physics B. 580:29-57
The mass of the lightest CP-even Higgs boson of the minimal supersymmetric extension of the Standard Model (MSSM) has previously been computed including O(alpha alpha_s) two-loop contributions by an on-shell diagrammatic method, while approximate ana