TY - JOUR
T1 - Constraints from inflation and reheating on superpartner masses
AU - Falk, Toby
AU - Olive, Keith A.
AU - Roszkowski, Leszek
AU - Singh, Anupam
AU - Srednicki, Mark
PY - 1997/3/20
Y1 - 1997/3/20
N2 - Flat directions in the Minimal Supersymmetric Standard Model (MSSM) can become unstable due to radiative corrections, and the global minimum of the (zero temperature) potential can lie at large values of the squark and/or slepton fields. Here we show that, in inflationary models of early cosmology, the universe is very likely to be in the domain of attraction of this global minimum at the end of inflation. While the minimum at the origin of field space is global at sufficiently high temperatures, depending on details of the model, the universe may be trapped in the non-zero minimum until it becomes the global minimum at low temperatures. Parameter values leading to this scenario are therefore ruled out.
AB - Flat directions in the Minimal Supersymmetric Standard Model (MSSM) can become unstable due to radiative corrections, and the global minimum of the (zero temperature) potential can lie at large values of the squark and/or slepton fields. Here we show that, in inflationary models of early cosmology, the universe is very likely to be in the domain of attraction of this global minimum at the end of inflation. While the minimum at the origin of field space is global at sufficiently high temperatures, depending on details of the model, the universe may be trapped in the non-zero minimum until it becomes the global minimum at low temperatures. Parameter values leading to this scenario are therefore ruled out.
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U2 - 10.1016/S0370-2693(97)00035-X
DO - 10.1016/S0370-2693(97)00035-X
M3 - Article
AN - SCOPUS:0001949772
SN - 0370-2693
VL - 396
SP - 50
EP - 57
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
IS - 1-4
ER -