Results 51 to 60 of about 20,379 (180)
Leading directions in the SMEFT
Journal of High Energy Physics, 2023 Short-distance new physics at (or slightly) above the TeV scale should not excessively violate the approximate flavor symmetries of the SM in order to comply with stringent constraints from flavor-changing neutral currents.
Admir Greljo, Ajdin Palavrić
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Adding CP to flavour symmetries [PDF]
Journal of Physics: Conference Series, 2015 12 pages, 2 figures. Contribution to the Proceedings of the DISCRETE 2014 Conference.
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Consequences of a U(2) flavour symmetry [PDF]
Physics Letters B, 1997 While solving the supersymmetric flavour problem, a U(2) flavour symmetry might be at the origin of the pattern of fermion masses and mixings. The consequences of this hypothesis are spelled out concerning the parameters of the CKM matrix and their observability in B- and K-physics.
Barbieri R, Hall LJ, Romanino, Andrea
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Strong coupling, discrete symmetry and flavour [PDF]
Journal of High Energy Physics, 2010 We show how two principles - strong coupling and discrete symmetry - can work together to generate the flavour structure of the Standard Model. We propose that in the UV the full theory has a discrete flavour symmetry, typically only associated with tribimaximal mixing in the neutrino sector.
Abel, Steven, Barnard, James
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Journal of High Energy Physics, 2022 We study the flavor structure of the lepton and baryon number-conserving dimension-6 operators in the Standard Model effective field theory (SMEFT). Building on the work of [1], we define several well-motivated flavor symmetries and symmetry-breaking ...
Admir Greljo +2 more
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Flavour and CP symmetries in the inverse seesaw
European Physical Journal C: Particles and Fields, 2022 We consider an inverse seesaw mechanism of neutrino mass generation in which the Standard Model is extended by $$3+3$$ 3 + 3 (heavy) sterile states, and endowed with a flavour symmetry $$G_f$$ G f , $$G_f=\Delta (3 \, n^2)$$ G f = Δ ( 3 n 2 ) or $$G_f ...
C. Hagedorn +3 more
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S3-flavour symmetry as realized in lepton flavour violating processes [PDF]
Journal of Physics A: Mathematical and Theoretical, 2008 A variety of lepton flavour violating effects related to the recent discovery of neutrino oscillations and mixings is here systematically discussed in terms of an S_3-flavour permutational symmetry. After a brief review of some relevant results on lepton masses and mixings, that had been derived in the framework of a Minimal S_3-Invariant Extension of ...
Mondragón, A. +2 more
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Predictive flavour symmetries of the neutrino mass matrix [PDF]
, 2007 Here we propose an $A_4$ flavour symmetry model which implies a lower bound on the neutrinoless double beta decay rate, corresponding to an effective mass parameter $M_{ee} \gsim 0.03$ eV, and a direct correlation between the expected magnitude of CP ...
Hirsch, M. +3 more
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Flavor structure, flavor symmetry and supersymmetry [PDF]
Nuclear Physics B - Proceedings Supplements, 2001 12 LaTeX pages. Talk presented at the Int. Workshop `30 Years of Supersymmetry', Minneapolis, USA, 13-27 Oct. 2000. To appear in Nucl. Phys.
BEREJIANI, ZOURAB, ROSSI A.
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Nonabelian Global Chiral Symmetry Realisation in the Two-Dimensional N Flavour Massless Schwinger Model [PDF]
, 2006 The nonabelian global chiral symmetries of the two-dimensional N flavour massless Schwinger model are realised through bosonisation and a vertex operator construction.Comment: To appear in the Proceedings of the Fourth International Workshop on ...
Gouba, Laure +2 more
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