Journal
PHYSICS LETTERS B
Volume 737, Issue -, Pages 156-161Publisher
ELSEVIER
DOI: 10.1016/j.physletb.2014.08.036
Keywords
Supersymmetry; Vacuum stability
Funding
- DFG [GRK1147, PO-1337/2-1]
- BMBF PT DESY Verbundprojekt [05H2013-THEORIE]
- Gottfried Wilhelm Leibniz programme of the DFG
- DFG cluster of excellence 'Origin and Structure of the Universe'
- National Science Foundation [NSF PHY11-25915]
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We re-evaluate the constraints on the parameter space of the minimal supersymmetric standard model from tunneling to charge- and/or color-breaking minima, taking into account thermal corrections. We pay particular attention to the region known as the Natural MSSM, where the masses of the scalar partners of the top quarks are within an order of magnitude or so of the electroweak scale. These constraints arise from the interaction between these scalar tops and the Higgs fields, which allows the possibility of parameter points having deep charge-and color-breaking true vacua. In addition to requiring that our electroweak-symmetry-breaking, yet QCD- and electromagnetism-preserving vacuum has a sufficiently long lifetime at zero temperature, also demanding stability against thermal tunneling further restricts the allowed parameter space. (C) 2014 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license.
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