Suppressing Proton Decay By Separating Quarks And Leptons

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dc.creatorCoulthurst, A.
dc.creatorMcDonald, K. L.
dc.creatorMcKellar, B. H. J.
dc.date2006-10-26
dc.date2007-02-13
dc.date.accessioned2026-07-07T10:25:48Z
dc.date.available2026-07-07T10:25:48Z
dc.descriptionArkani-Hamed and Schmaltz (AS) have shown that proton stability need not originate from symmetries in a high energy theory. Instead the proton decay rate is suppressed if quarks and leptons are spatially separated in a compact extra dimension. This separation may be achieved by coupling five dimensional fermions to a bulk scalar field with a non-trivial vacuum profile and requires relationships between the associated quark and lepton Yukawa couplings. We hypothesise that these relationships are the manifestation of an underlying symmetry. We further show that the AS proposal may suggest that proton stability \emph{is} the result of an underlying symmetry, though not necessarily the traditional baryon number symmetry.
dc.description4 pages, references added to match published version
dc.identifierhttps://arxiv.org/abs/hep-ph/0610345
dc.identifierhttp://arxiv.org/abs/hep-ph/0610345
dc.identifierPhys.Rev.D74:127701,2006
dc.identifierdoi:10.1103/PhysRevD.74.127701
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/176662
dc.subjectHigh Energy Physics - Phenomenology
dc.titleSuppressing Proton Decay By Separating Quarks And Leptons
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