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Lepton flavour violation in the constrained MSSM with natural neutrino mass hierarchy

Lepton flavour violation in the constrained MSSM with natural neutrino mass hierarchy
Lepton flavour violation in the constrained MSSM with natural neutrino mass hierarchy
We present predictions for ??e? and ???? in the CMSSM in which there is a natural hierarchy of neutrino masses resulting from the sequential dominance of three right-handed neutrinos. We perform a global analysis of this model in the (m0,M1/2) plane, assuming radiative electroweak symmetry breaking, and including all observed laboratory data. We confirm that a large (small) ???? rate results from the dominant right-handed neutrino being the heaviest (lightest) one. We show that the ??e? rate may determine the order of the subdominant neutrino Yukawa couplings in the flavour basis, but may also be sensitive to effects beyond the leading log and leading mass insertion approximations. We also show that the ??e? rate is independent of ?13, but measurement of this angle may determine a ratio of subdominant Yukawa couplings.
0920-5632
359-378
Blazek, T.
301575a4-8f11-4612-b6f2-5d3ff8cc0409
King, S.F.
f8c616b7-0336-4046-a943-700af83a1538
Blazek, T.
301575a4-8f11-4612-b6f2-5d3ff8cc0409
King, S.F.
f8c616b7-0336-4046-a943-700af83a1538

Blazek, T. and King, S.F. (2003) Lepton flavour violation in the constrained MSSM with natural neutrino mass hierarchy. Nuclear Physics B - Proceedings Supplements, 662 (1-2), 359-378. (doi:10.1016/S0550-3213(03)00297-9).

Record type: Article

Abstract

We present predictions for ??e? and ???? in the CMSSM in which there is a natural hierarchy of neutrino masses resulting from the sequential dominance of three right-handed neutrinos. We perform a global analysis of this model in the (m0,M1/2) plane, assuming radiative electroweak symmetry breaking, and including all observed laboratory data. We confirm that a large (small) ???? rate results from the dominant right-handed neutrino being the heaviest (lightest) one. We show that the ??e? rate may determine the order of the subdominant neutrino Yukawa couplings in the flavour basis, but may also be sensitive to effects beyond the leading log and leading mass insertion approximations. We also show that the ??e? rate is independent of ?13, but measurement of this angle may determine a ratio of subdominant Yukawa couplings.

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Published date: 7 July 2003

Identifiers

Local EPrints ID: 57090
URI: https://eprints.soton.ac.uk/id/eprint/57090
ISSN: 0920-5632
PURE UUID: 218a938f-3c02-4b22-a9b9-3dd8ce0c7044

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Date deposited: 13 Aug 2008
Last modified: 13 Mar 2019 20:34

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