TY - JOUR
T1 - Monopole supression and baryon production in cosmologies based on Witten's upside down hierarchy model
AU - Banks, T.
AU - Kaplunovsky, V.
N1 - Funding Information:
l Research supported in part by the Israel Commission for Basic Research and the IJS-Israel
PY - 1982/10/4
Y1 - 1982/10/4
N2 - We demonstrate that the supersymmetric grand unified models proposed by Witten do not lead to an overproduction of superheavy monopoles at the SU(5) phase transition. The causal bound in these theories is consistent with standard cosmology. We discuss baryon production in these theories and argue that in order to produce a sufficient number of baryons, the color triplet Higgs mass must be much lighter than the grand unification scale. This leads to unacceptably large proton decay rates via Weinberg's dimension-5 operator.
AB - We demonstrate that the supersymmetric grand unified models proposed by Witten do not lead to an overproduction of superheavy monopoles at the SU(5) phase transition. The causal bound in these theories is consistent with standard cosmology. We discuss baryon production in these theories and argue that in order to produce a sufficient number of baryons, the color triplet Higgs mass must be much lighter than the grand unification scale. This leads to unacceptably large proton decay rates via Weinberg's dimension-5 operator.
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U2 - 10.1016/0550-3213(82)90487-4
DO - 10.1016/0550-3213(82)90487-4
M3 - Article
AN - SCOPUS:3042899207
SN - 0550-3213
VL - 206
SP - 45
EP - 52
JO - Nuclear Physics, Section B
JF - Nuclear Physics, Section B
IS - 1
ER -