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Title: MSSM inflation, dark matter, and the LHC

Abstract

Inflation can occur near a point of inflection in the potential of flat directions of the minimal supersymmetric standard model (MSSM). In this paper we elaborate on the complementarity between the bounds from cosmic microwave background measurements, dark matter, and particle physics phenomenology in determining the underlying parameters of MSSM inflation by specializing to the minimal supergravity scenario. We show that the future measurements from the Large Hadron Collider in tandem with all these constraints will significantly restrict the allowed parameter space. We also suggest a new perspective on the fine tuning issue of MSSM inflation. With quantum corrections taken into account, the necessary condition between the soft supersymmetry breaking parameters in the inflaton potential can be satisfied at scales of interest without a fine tuning of their boundary values at a high scale. The requirement that this happens at the inflection point determines a dimensionless coupling, which is associated with a nonrenormalizable interaction term in the Lagrangian and has no bearing for phenomenology, to very high accuracy.

Authors:
 [1];  [2];  [3]
  1. Department of Physics and Astronomy, University of New Mexico, Albuquerque, New Mexico 87131 (United States)
  2. Department of Physics and Astronomy, Texas A and M University, College Station, Texas 77843-4242 (United States)
  3. Department of Physics and Astronomy, University of Kansas, Lawrence, Kansas 66045-7582 (United States)
Publication Date:
OSTI Identifier:
21432900
Resource Type:
Journal Article
Journal Name:
Physical Review. D, Particles Fields
Additional Journal Information:
Journal Volume: 82; Journal Issue: 3; Other Information: DOI: 10.1103/PhysRevD.82.035012; (c) 2010 American Institute of Physics; Journal ID: ISSN 0556-2821
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ACCURACY; CERN LHC; CORRECTIONS; COUPLING; INTERACTIONS; LAGRANGIAN FUNCTION; NONLUMINOUS MATTER; PARTICLES; RELICT RADIATION; STANDARD MODEL; SUPERGRAVITY; SUPERSYMMETRY; SYMMETRY BREAKING; ACCELERATORS; CYCLIC ACCELERATORS; ELECTROMAGNETIC RADIATION; FIELD THEORIES; FUNCTIONS; GRAND UNIFIED THEORY; MATHEMATICAL MODELS; MATTER; MICROWAVE RADIATION; PARTICLE MODELS; QUANTUM FIELD THEORY; RADIATIONS; STORAGE RINGS; SYMMETRY; SYNCHROTRONS; UNIFIED GAUGE MODELS; UNIFIED-FIELD THEORIES

Citation Formats

Allahverdi, Rouzbeh, Dutta, Bhaskar, and Santoso, Yudi. MSSM inflation, dark matter, and the LHC. United States: N. p., 2010. Web. doi:10.1103/PHYSREVD.82.035012.
Allahverdi, Rouzbeh, Dutta, Bhaskar, & Santoso, Yudi. MSSM inflation, dark matter, and the LHC. United States. https://doi.org/10.1103/PHYSREVD.82.035012
Allahverdi, Rouzbeh, Dutta, Bhaskar, and Santoso, Yudi. Sun . "MSSM inflation, dark matter, and the LHC". United States. https://doi.org/10.1103/PHYSREVD.82.035012.
@article{osti_21432900,
title = {MSSM inflation, dark matter, and the LHC},
author = {Allahverdi, Rouzbeh and Dutta, Bhaskar and Santoso, Yudi},
abstractNote = {Inflation can occur near a point of inflection in the potential of flat directions of the minimal supersymmetric standard model (MSSM). In this paper we elaborate on the complementarity between the bounds from cosmic microwave background measurements, dark matter, and particle physics phenomenology in determining the underlying parameters of MSSM inflation by specializing to the minimal supergravity scenario. We show that the future measurements from the Large Hadron Collider in tandem with all these constraints will significantly restrict the allowed parameter space. We also suggest a new perspective on the fine tuning issue of MSSM inflation. With quantum corrections taken into account, the necessary condition between the soft supersymmetry breaking parameters in the inflaton potential can be satisfied at scales of interest without a fine tuning of their boundary values at a high scale. The requirement that this happens at the inflection point determines a dimensionless coupling, which is associated with a nonrenormalizable interaction term in the Lagrangian and has no bearing for phenomenology, to very high accuracy.},
doi = {10.1103/PHYSREVD.82.035012},
url = {https://www.osti.gov/biblio/21432900}, journal = {Physical Review. D, Particles Fields},
issn = {0556-2821},
number = 3,
volume = 82,
place = {United States},
year = {2010},
month = {8}
}