Cosmological Constraint on the Scale of the Supersymmetric Singlet Majoron

Details Cosmological Constraint on the Scale of the Supersymmetric Singlet Majoron Cosmological Constraint on the Scale of the Supersymmetric Singlet Majoron

1993-07-07

arxiv.org/abs/hep-ph/9307231v2

Phys.Rev.D49:1163,1994; Erratum-ibid.D49:6246,1994

Physics

High Energy Physics

High Energy Physics - Phenomenology

UMDHEP 94-04, 12 pages (TeX file)

Scientific paper

10.1103/PhysRevD.49.1163 10.1103

In a SUSY theory with a spontaneously broken global symmetry, G, if the scale of SUSY breaking, $M_s$ is smaller than the scale $M_G$ of the global symmetry, the Nambu-Goldstone boson, $\chi$ is accompanied by two massive superpartners ( a fermionic, $\Psi_\chi$ and a scalar $\sigma_\chi$) with mass of order $M_s$. Cosmological considerations imply stringent constraints on the couplings of $\Psi_\chi$ and $\sigma_\chi$. Application of these considerations to the supersymmetric singlet Majoron model leads to an upper limit on the scale $V_{BL}$ of global $U(1)_{B-L}$ symmetry to be less than $10^4 GeV$, for resonable values of parameters in the theory.

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