Spontaneous breaking of global baryon number symmetry | Zendy

R. Barbieri | Zendy; Rabindra N. Mohapatra | Zendy

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Spontaneous breaking of global baryon number symmetry

Author(s) -

R. Barbieri,

Rabindra N. Mohapatra

Publication year - 1981

Publication title -

zeitschrift für physik c

Language(s) - English

Resource type - Journals

eISSN - 1431-5858

pISSN - 0170-9739

DOI - 10.1007/bf01574002

Subject(s) - physics , particle physics , baryon number , baryon , context (archaeology) , quark , symmetry (geometry) , lepton number , symmetry breaking , lepton , quark model , standard model (mathematical formulation) , theoretical physics , nuclear physics , mathematics , electron , geometry , geography , quarkonium , archaeology , gauge (firearms)

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 ?B=2 selection rule.

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