Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1992-09-28
Phys.Lett.B299:90-93,1993
Physics
High Energy Physics
High Energy Physics - Phenomenology
9 pages, no figures, LaTex, UMDHEP 93-020, LMU-12/92, SISSA-149/92/EP
Scientific paper
10.1016/0370-2693(93)90887-N
The hypothesis that non-perturbative gravitational effects lead to explicit breaking of global symmetries is considered in the context of Majoron models. We find that the nonvanishing Majoron mass generated by these effects can overclose the universe unless the massive Majoron is unstable. The cosmological mass density constraints can then be satisfied only if $V_{BL} < 10$ TeV, where $V_{BL}$ is the scale of $B-L$ symmetry breaking.
Akhmedov Eugene Kh.
Berezhiani Zurab G.
Mohapatra Rabindra N.
Senjanovi'{c} Goran
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