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Spontaneous Breakdown of Parity as the Origin of Isospin Breaking

1985; American Physical Society; Volume: 55; Issue: 25 Linguagem: Inglês

10.1103/physrevlett.55.2756

1092-0145

Darwin Chang, Rabindra N. Mohapatra, Palash B. Pal, Jogesh C. Pati,

Dark Matter and Cosmic Phenomena

It is shown that spontaneous breakdown of parity within left-right-symmetric theories can be entirely responsible for generating a spontaneous breakdown of "isospin" symmetry leading to large up-down mass splitting within a family.