TY - JOUR
T1 - On the solution to the polonyi problem with O(10 TeV) gravitino mass in supergravity
AU - Moroi, T.
AU - Yamaguchi, M.
AU - Yanagida, T.
PY - 1995/1/12
Y1 - 1995/1/12
N2 - We study the solution to the Polonyi problem where the Polonyi field weighs as O(10 TeV) and decays just before the primordial nucleosynthesis. It is shown that in spite of a large entropy production by the Polonyi field decay, one can naturally explain the present value of the baryon-to-entropy ratio, nB s ∼ 10-10-10-11 if the Affeck-Dine mechanism for baryogenesis works. It is pointed out, however, that there is another cosmological problem related to the abundance of the lightest superparticles produced by the Polonyi decay.
AB - We study the solution to the Polonyi problem where the Polonyi field weighs as O(10 TeV) and decays just before the primordial nucleosynthesis. It is shown that in spite of a large entropy production by the Polonyi field decay, one can naturally explain the present value of the baryon-to-entropy ratio, nB s ∼ 10-10-10-11 if the Affeck-Dine mechanism for baryogenesis works. It is pointed out, however, that there is another cosmological problem related to the abundance of the lightest superparticles produced by the Polonyi decay.
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U2 - 10.1016/0370-2693(94)01337-C
DO - 10.1016/0370-2693(94)01337-C
M3 - Article
AN - SCOPUS:0000142625
VL - 342
SP - 105
EP - 110
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
SN - 0370-2693
IS - 1-4
ER -