Phase transition for spontaneous R-parity breaking

Details Phase transition for spontaneous R-parity breaking Phase transition for spontaneous R-parity breaking

May 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993phrvd..47.4723c&link_type=abstract

Physical Review D (Particles, Fields, Gravitation, and Cosmology), Volume 47, Issue 10, 15 May 1993, pp.4723-4727

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Supergravity, Spontaneous And Radiative Symmetry Breaking, Particle-Theory And Field-Theory Models Of The Early Universe

Scientific paper

We propose a model for spontaneous R-parity breaking based on a simple extension of the minimal low energy supergravity model. We also consider the temperature effects in the scalar potential and show that a phase transition for the breaking of R parity could have occurred in the early Universe later than the gauge symmetry breaking. This constraint is imposed on the extensions of the standard model which violate baryon and/or lepton number in order to explain the existing baryon asymmetry of the Universe. Otherwise, any previously established baryon asymmetry could be washed away.

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