Abstract
The standard low energy electroweak and strong interaction gauge group SU(3)C x SU(2)L x U(1)Y, broken spontaneously by a Higgs doublet, has been highly successful in the low energy region (≤ 100 GeV) [1]. On the other hand, the SU(5) gauge group, the lowest rank simple group containing SU(3)C x SU(2)L x U(1)Y, appears to be in serious trouble [2]. The failure to observe proton decay at the level predicted by SU(5) GUT throw doubt on the existence of the “great desert” between 102GeV and 1015GeV and leaves room for intermediate mass scales of various types. Within this context, and for other reasons (see below), I wish to point out in this talk some attractive features of those groups that have B-L as a generator (and which I call B-L gauge groups).
Some new results have been included since the talk was given at Erice
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References
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© 1985 Plenum Press, New York
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Marshak, R.E. (1985). B-L Gauge Models. In: Newman, H.B. (eds) Electroweak Effects at High Energies. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-2451-5_34
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