Suppressing Proton Decay in Theories with Localised Fermions

Details Suppressing Proton Decay in Theories with Localised Fermions Suppressing Proton Decay in Theories with Localised Fermions

2005-12-12

arxiv.org/abs/hep-ph/0512144v3

JHEP 0608 (2006) 038

Physics

High Energy Physics

High Energy Physics - Phenomenology

19 pages

Scientific paper

10.1088/1126-6708/2006/08/038

We calculate the contribution to the proton decay amplitude from Kaluza-Klein lepto-quarks in theories with extra dimensions, localised fermions and gauge fields which propagate in the bulk. Such models naturally occur within the context of M-theory. In SU(5) models we show that carefully including all such modes gives a distinctive pattern of decays through various channels including a strong suppression of decays into neutrinos or right handed positrons. By contrast there is no such suppression for SO(10).

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