Lepton flavour violation and flavour symmetries
نویسندگان
چکیده
منابع مشابه
Lepton Flavour Violation
After a summary of the motivations for searching flavour violating decays and electric dipole moments in the leptonic sector, I briefly sketch the present status of the limits on lepton-slepton misalignement and discuss the potentialities of the planned experimental improvements. Candidates for theories beyond the Standard Model have to satisfy all these experimental constraints; I will discuss...
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The standard model (SM) of particle physics successfully describes a variety of phenomena in terms of a few fundamental quantities. Besides the gauge coupling constants associated to the fundamental interactions, and the scalar sector responsible for spontaneous electroweak symmetry breaking, the major part of adjustable parameters are related to the fermion sector describing the masses and mix...
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Lepton-flavour violating processes, such as µ → eγ, are studied in ordinary (non-SUSY) SU(5) and SUSY SU(5) grand unified theories. First given are some introductory argument on the mechanism of U.V. divergence cancellation in flavour changing neutral current processes and on the decoupling of particles with GUT scale masses. We next see that such general argument is confirmed by an explicit ca...
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Lepton flavour violation (LFV) has been proposed as a significant test of supersymmetric unification. Here we show that such signals are also a generic feature of supersymmetric string unified models in which there is no simple unified gauge group. In realistic models of this kind which involve third family Yukawa unification and large values of tanβ, there are generally heavy right-handed (sin...
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We study lepton flavour violating decays of neutralinos and sleptons within the Minimal Supersymmetric Standard Model, taking into account the recent bounds on flavour violating lepton decays. Taking the SPS1a’ scenario as an example, we show that some of these lepton flavour violating branching ratios of neutralinos and sleptons can be ∼5-10%. We study the impact of the lepton flavour violatin...
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ژورنال
عنوان ژورنال: Fortschritte der Physik
سال: 2012
ISSN: 0015-8208
DOI: 10.1002/prop.201200126