Neutrino oscillations and R-parity violating supersymmetry

Abstract

Using the neutrino oscillations and neutrinoless double beta decay experimental data we reconstructed an upper limit for the three generation neutrino mass matrix. We compared this matrix with the predictions of the minimal supersymmetric(SUSY) model with R-parity violation(R p / ) and extracted stringent limits on trilinear R p / coupling constants λ i33 , λ ′ i33 . Introducing an additional U (1) X flavor symmetry which had been successful in explaining the mass hierarchy of quarks and charged leptons we were able to relate various R p / parameters. In this model we found a unique scenario for the neutrino masses and the R p / couplings compatible with the neutrino oscillation data. Then we derived predictions for certain experimentally interesting observables. * oliver.haug@uni-tuebingen.de

Neutrinoless double beta decay of76Ge,82Se,Šimkovic1, Nowak2, Kamiński3 et al. 2001Phys. Rev. CSelf Cite584551View full textAdd to dashboardCite

“…Generally, one can add trilinear R-parity violating terms to the superpotential of MSSM The 0νββ-decay can be induced by different trilinear R-parity violating mechanisms, partially determined by different products of the parameters λ and λ ′ [12,33,35]. Here, we consider those mechanisms which lead to the most stringent constrain on the λ ′ 111 parameter.…”

“…Nevertheless, if assumptions about the character (Dirac or Majorana neutrinos), the phases and the neutrino mixing pattern are considered, one can derive estimates for the effective Majorana electron neutrino mass < m ν > responsible for 0νββ-decay. The current viable analysis implies the effective neutrino mass < m ν > to be within the range 10 −3 eV ≤ < m ν > ≤ 1 eV [11,12]. The present generation of 0νββ-decay experiments [13][14][15] achieve sensitivities of T 0ν 1/2 ∼ 10 24 − 10 25 years for different isotopes [13][14][15].…”

(μ−,μ+)conversion in nuclei as a probe of new physics

“…More detailed analysis of neutrino oscillation data in combination with the data on 0νββ-decay leads to more stringent constraints on this LNV parameter [25]:…”

Neutrino mass in GUT constrained supersymmetry withR−parityviolation in light of neutrino oscillations

“…Let us first recall the well known results. In the lowest order, the contribution to the mass matrix reads [10] Beyond the tree-level, the Majorana neutrino mass matrix may also be generated by considering one-loop self-energy diagrams. The particles that propagate inside the loops are either quark and squark or lepton and slepton.…”

“…The aim of our paper is to get new individual limits on the R-parity breaking parameters by taking the advantage of the recent data on neutrino oscillations and neutrinoless double beta decay. In addition, the previous studies presented in [6,10,11] are improved by a more accurate treat-ment of the neutrino mass contributions, in particular, by reducing the dependence on the SUSY parameter space. The considered model is the minimal supersymmetric standard model with supersymmetry breaking transmitted by (super)gravity interactions (SUGRA MSSM) [12], with the squark and slepton mixing phenomena properly included.…”