Published December 2017 | Version v1
Journal article

μ-term hybrid inflation and split supersymmetry

  • 1. Bartol Research Institute, Department of Physics and Astronomy, University of Delaware, Newark, DE 19716 (United States)
  • 2. Department of Physics and Astronomy, University of Alabama, Tuscaloosa, AL 35487 (United States)

Description

We consider μ-term hybrid inflation which, in its minimal format with gravity mediated supersymmetry breaking, leads to split supersymmetry. The MSSM μ-term in this framework is larger than the gravitino mass mG, and successful inflation requires mG (and hence also |μ|) 5×107 GeV, such that the gravitino decays before the LSP neutralino freezes out. Assuming universal scalar masses of the same order as mG, this leads to split supersymmetry. The LSP wino with mass ≃ 2 TeV is a plausible dark matter candidate, the gluino may be accessible at the LHC, and the MSSM parameter tanβ1.7 in order to be compatible with the measured Higgs boson mass. The tensor-to-scalar ratio r, a canonical measure of gravity waves, can be as high as 0.001.

Availability note (English)

Available from http://dx.doi.org/10.1016/j.physletb.2017.11.015

Additional details

Identifiers

DOI
10.1016/j.physletb.2017.11.015;
arXiv
arXiv:1506.01410v2;
PII
S0370269317309073;

Publishing Information

Journal Title
Physics Letters. Section B
Journal Volume
775
Journal Page Range
p. 348-351
ISSN
0370-2693
CODEN
PYLBAJ

Optional Information

Copyright
Copyright (c) 2017 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.