TY - JOUR
T1 - New parametrization of the seesaw mechanism and applications in supersymmetric models
AU - Ellis, John
AU - Hisano, Junji
AU - Raidal, Martti
AU - Shimizu, Yasuhiro
PY - 2002
Y1 - 2002
N2 - We present a new parametrization of the minimal seesaw model, expressing the heavy-singlet neutrino Dirac Yukawa couplings (Formula presented) and Majorana masses (Formula presented) in terms of effective light-neutrino observables and an auxiliary Hermitian matrix H. In the minimal supersymmetric version of the seesaw model, the latter can be related directly to other low-energy observables, including processes that violate charged lepton flavor and (Formula presented) This parametrization enables one to respect the stringent constraints on muon-number violation while studying the possible ranges for other observables by scanning over the allowed parameter space of the model. Conversely, if any of the lepton-flavor-violating process is observed, this measurement can be used directly to constrain (Formula presented) and (Formula presented) As applications, we study flavor-violating (Formula presented) decays and the electric dipole moments of leptons in the minimal supersymmetric seesaw model.
AB - We present a new parametrization of the minimal seesaw model, expressing the heavy-singlet neutrino Dirac Yukawa couplings (Formula presented) and Majorana masses (Formula presented) in terms of effective light-neutrino observables and an auxiliary Hermitian matrix H. In the minimal supersymmetric version of the seesaw model, the latter can be related directly to other low-energy observables, including processes that violate charged lepton flavor and (Formula presented) This parametrization enables one to respect the stringent constraints on muon-number violation while studying the possible ranges for other observables by scanning over the allowed parameter space of the model. Conversely, if any of the lepton-flavor-violating process is observed, this measurement can be used directly to constrain (Formula presented) and (Formula presented) As applications, we study flavor-violating (Formula presented) decays and the electric dipole moments of leptons in the minimal supersymmetric seesaw model.
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U2 - 10.1103/PhysRevD.66.115013
DO - 10.1103/PhysRevD.66.115013
M3 - Article
AN - SCOPUS:0036993056
VL - 66
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
SN - 1550-7998
IS - 11
ER -