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Title: The Constrained NMSSM with right-handed neutrinos

Journal Article · · European Physical Journal. C, Particles and Fields
 [1];  [2];  [3];  [4];  [5]
  1. Durham Univ. (United Kingdom); Autonomous Univ. of Madrid (Spain)
  2. Univ. of Valencia (Spain)
  3. Univ. of Bonn (Germany)
  4. Univ. of Minnesota, Minneapolis, MN (United States)
  5. Hokkaido Univ., Sapporo (Japan)

In this article, we demonstrate that the inclusion of right-handed neutrino superfields in the Next-to-Minimal Supersymmetric Standard Model (NMSSM) makes it possible to impose universality conditions on the soft supersymmetry-breaking parameters at the Grand Unification scale, alleviating many of the problems of the so-called Constrained NMSSM. We have studied the renormalization group equations of this model, showing that right-handed neutrinos greatly contribute to driving the singlet Higgs mass-squared parameter negative, which makes it consider-ably easier to satisfy the conditions for radiative electroweak symmetry breaking. The new fields also lead to larger values of the Standard Model Higgs mass, thus making it easier to reproduce the measured value. As a consequence, all bounds from colliders and low-energy observables can be fulfilled in wide areas of the parameter space. However, the relic density in these regions is generally too high requiring some form of late entropy production to dilute the density of the lightest supersymmetric particle.

Research Organization:
Univ. of Minnesota, Minneapolis, MN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP)
Grant/Contract Number:
SC0011842
OSTI ID:
1510010
Journal Information:
European Physical Journal. C, Particles and Fields, Vol. 78, Issue 4; ISSN 1434-6044
Publisher:
SpringerCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 9 works
Citation information provided by
Web of Science

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Bayesian analysis of sneutrino dark matter in the NMSSM with a type-I seesaw mechanism journal June 2019

Figures / Tables (5)


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