Spontaneous breaking of global baryon number symmetry

  • R. Barbieri
  • R. N. Mohapatra


We study the possibility that theU(1) B global symmetry associated with baryon number is spontaneously broken. We present realistic examples implemented in the context of a suitably extended standardSU(2)L×U(1)×SU(3)c model and of a composite model of quarks and leptons. The globalU(1)B symmetry in both cases is spontaneously broken at a relatively low mass scale without any conflict with observations. The dominant baryon number nonconserving process in these models obeys the ΔB=2 selection rule.


Field Theory Elementary Particle Quantum Field Theory Selection Rule Mass Scale 
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Copyright information

© Springer-Verlag 1981

Authors and Affiliations

  • R. Barbieri
    • 1
  • R. N. Mohapatra
    • 1
  1. 1.CERNGeneva 23Switzerland

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