Radiative mass generation and suppression of supersymmetric contributions to flavor changing processes

Ferrandis, Javier

doi:10.1103/physrevd.70.055002

“…This was achieved by postulating a U(2) horizontal symmetry [12] that is broken by a set of supersymmetry breaking fields [10]. The model can also overcome the present constraints on supersymmetric contributions to flavor changing processes [13].…”

Section: Perspectives and Conclusionmentioning

confidence: 99%

Empirical formulas for the fermion spectra and Yukawa matrices

Ferrandis

¹

2004

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“…In that view, all the SM Yukawa couplings are simultaneously diagonal. Such symmetries may be U(2) flavor symmetries as proposed and studied in [5,[15][16][17][18][19][20]. The Yukawa couplings vanish except for the third generation…”

Section: Radiative Flavor Violation In the Mssmmentioning

confidence: 99%

Neutrino Mixing from SUSY breaking

Hollik¹

2015

Proceedings of Proceedings of the Corfu Summer Institute 2014 — PoS(CORFU2014)

0

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We propose a mechanism to generate the neutrino mixing matrix from supersymmetric threshold corrections. Flavor violating soft breaking terms induce flavor changing self-energies that give a finite renormalization to the mixing matrix. The described threshold corrections get enhanced in case of quasi-degenerate neutrino masses. In this scenario, we adjust potentially arbitrary soft breaking parameters in a way to reproduce the observed neutrino mixing at one loop working with non-minimal flavor violating soft parameters. To incorporate small neutrino masses already at tree-level via a type I seesaw mechanism, we extend the Minimal Supersymmetric Standard Model with singlet Majorana neutrinos. The radiative corrections do not decouple with the scale of Supersymmetry and persist when the spectrum is shifted to higher values. Moreover, the mixing matrix renormalization with flavor-changing self-energies is not restricted to supersymmetric theories and give similar results in any theory with new flavor structures.

show abstract

“…In that view, all the SM Yukawa couplings are simultaneously diagonal. Such symmetries may be U(2) flavor symmetries as proposed and studied in [5,[15][16][17][18][19][20]. The Yukawa couplings vanish except for the third generation…”

Section: Radiative Flavor Violation In the Mssmmentioning

confidence: 99%

Neutrino Mixing from SUSY breaking

Hollik¹

2015

Preprint

0

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We propose a mechanism to generate the neutrino mixing matrix from supersymmetric threshold corrections. Flavor violating soft breaking terms induce flavor changing self-energies that give a finite renormalization to the mixing matrix. The described threshold corrections get enhanced in case of quasi-degenerate neutrino masses. In this scenario, we adjust potentially arbitrary soft breaking parameters in a way to reproduce the observed neutrino mixing at one loop working with non-minimal flavor violating soft parameters. To incorporate small neutrino masses already at tree-level via a type I seesaw mechanism, we extend the Minimal Supersymmetric Standard Model with singlet Majorana neutrinos. The radiative corrections do not decouple with the scale of Supersymmetry and persist when the spectrum is shifted to higher values. Moreover, the mixing matrix renormalization with flavor-changing self-energies is not restricted to supersymmetric theories and give similar results in any theory with new flavor structures. * Talk given at the Summer School and Workshop on the Standard Model and Beyond 2013. † Speaker.

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Radiative mass generation and suppression of supersymmetric contributions to flavor changing processes

Cited by 7 publications

References 51 publications

Empirical formulas for the fermion spectra and Yukawa matrices

Empirical formulas for the fermion spectra and Yukawa matrices

Neutrino Mixing from SUSY breaking

Neutrino Mixing from SUSY breaking

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