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Title: Heavy Higgs boson with a light sneutrino next-to-lightest supersymmetric particle in the MSSM with enhanced SU(2) D-terms

Abstract

The minimal supersymmetric extension of the standard model provides a solution to the hierarchy problem and leads to the presence of a light Higgs. A Higgs boson with mass above the present experimental bound may only be obtained for relatively heavy third generation squarks, requiring a precise, somewhat unnatural balance between different contributions to the effective Higgs mass parameter. It was recently noticed that somewhat heavier Higgs bosons, which are naturally beyond the CERN LEP bound, may be obtained by enhanced weak SU(2) D-terms. Such contributions appear in models with an enhanced electroweak gauge symmetry, provided the supersymmetry breaking masses associated with the scalars responsible for the breakdown of the enhanced gauge symmetry group to the standard model one are larger than the enhanced symmetry breaking scale. In this article we emphasize that the enhanced SU(2) D-terms will not only raise the Higgs boson mass but also affect the spectrum of the nonstandard Higgs bosons, sleptons, and squarks, which therefore provide a natural contribution to the T parameter, compensating for the negative one coming from the heavy Higgs boson. The sleptons and nonstandard Higgs bosons of these models, in particular, may act in a way similar to the so-called inertmore » Higgs doublet. The phenomenological properties of these models are emphasized, and possible cosmological implications as well as collider signatures are described.« less

Authors:
 [1];  [2];  [2]
  1. Department of Physics, University of California, One Shields Avenue, Davis, California 95616 (United States)
  2. Enrico Fermi Institute, University of Chicago, 5640 S. Ellis Avenue, Chicago, Illinois 60637 (United States)
Publication Date:
OSTI Identifier:
21308538
Resource Type:
Journal Article
Journal Name:
Physical Review. D, Particles Fields
Additional Journal Information:
Journal Volume: 80; Journal Issue: 1; Other Information: DOI: 10.1103/PhysRevD.80.015001; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0556-2821
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; BALANCES; BREAKDOWN; GAUGE INVARIANCE; HIGGS BOSONS; HIGGS MODEL; LEP STORAGE RINGS; LEPTONS; MASS; MATHEMATICAL SOLUTIONS; QUARKS; SPARTICLES; SPECTRA; STANDARD MODEL; SU-2 GROUPS; SUPERSYMMETRY; SYMMETRY BREAKING

Citation Formats

Medina, Anibal D, Shah, Nausheen R, HEP Division, Argonne National Laboratory, 9700 Cass Avenue, Argonne, Illinois 60439, Wagner, Carlos E. M., Kavli Institute for Cosmological Physics, University of Chicago, 5640 S. Ellis Avenue, Chicago, Illinois 60637, and HEP Division, Argonne National Laboratory, 9700 Cass Avenue, Argonne, Illinois 60439. Heavy Higgs boson with a light sneutrino next-to-lightest supersymmetric particle in the MSSM with enhanced SU(2) D-terms. United States: N. p., 2009. Web. doi:10.1103/PHYSREVD.80.015001.
Medina, Anibal D, Shah, Nausheen R, HEP Division, Argonne National Laboratory, 9700 Cass Avenue, Argonne, Illinois 60439, Wagner, Carlos E. M., Kavli Institute for Cosmological Physics, University of Chicago, 5640 S. Ellis Avenue, Chicago, Illinois 60637, & HEP Division, Argonne National Laboratory, 9700 Cass Avenue, Argonne, Illinois 60439. Heavy Higgs boson with a light sneutrino next-to-lightest supersymmetric particle in the MSSM with enhanced SU(2) D-terms. United States. https://doi.org/10.1103/PHYSREVD.80.015001
Medina, Anibal D, Shah, Nausheen R, HEP Division, Argonne National Laboratory, 9700 Cass Avenue, Argonne, Illinois 60439, Wagner, Carlos E. M., Kavli Institute for Cosmological Physics, University of Chicago, 5640 S. Ellis Avenue, Chicago, Illinois 60637, and HEP Division, Argonne National Laboratory, 9700 Cass Avenue, Argonne, Illinois 60439. Wed . "Heavy Higgs boson with a light sneutrino next-to-lightest supersymmetric particle in the MSSM with enhanced SU(2) D-terms". United States. https://doi.org/10.1103/PHYSREVD.80.015001.
@article{osti_21308538,
title = {Heavy Higgs boson with a light sneutrino next-to-lightest supersymmetric particle in the MSSM with enhanced SU(2) D-terms},
author = {Medina, Anibal D and Shah, Nausheen R and HEP Division, Argonne National Laboratory, 9700 Cass Avenue, Argonne, Illinois 60439 and Wagner, Carlos E. M. and Kavli Institute for Cosmological Physics, University of Chicago, 5640 S. Ellis Avenue, Chicago, Illinois 60637 and HEP Division, Argonne National Laboratory, 9700 Cass Avenue, Argonne, Illinois 60439},
abstractNote = {The minimal supersymmetric extension of the standard model provides a solution to the hierarchy problem and leads to the presence of a light Higgs. A Higgs boson with mass above the present experimental bound may only be obtained for relatively heavy third generation squarks, requiring a precise, somewhat unnatural balance between different contributions to the effective Higgs mass parameter. It was recently noticed that somewhat heavier Higgs bosons, which are naturally beyond the CERN LEP bound, may be obtained by enhanced weak SU(2) D-terms. Such contributions appear in models with an enhanced electroweak gauge symmetry, provided the supersymmetry breaking masses associated with the scalars responsible for the breakdown of the enhanced gauge symmetry group to the standard model one are larger than the enhanced symmetry breaking scale. In this article we emphasize that the enhanced SU(2) D-terms will not only raise the Higgs boson mass but also affect the spectrum of the nonstandard Higgs bosons, sleptons, and squarks, which therefore provide a natural contribution to the T parameter, compensating for the negative one coming from the heavy Higgs boson. The sleptons and nonstandard Higgs bosons of these models, in particular, may act in a way similar to the so-called inert Higgs doublet. The phenomenological properties of these models are emphasized, and possible cosmological implications as well as collider signatures are described.},
doi = {10.1103/PHYSREVD.80.015001},
url = {https://www.osti.gov/biblio/21308538}, journal = {Physical Review. D, Particles Fields},
issn = {0556-2821},
number = 1,
volume = 80,
place = {United States},
year = {2009},
month = {7}
}