Test of Physics beyond the Standard Model in Nuclei

Abstract

The modern theories of Grand Unification (GUT) and supersymmetric (SUSY) extensions of standard model (SM) suppose that the conservation laws of the SM may be violated to some small degree. The nuclei are well-suited as a laboratory to test fundamental symmetries and fundamental interactions like lepton flavor (LF) and lepton number (LN) conservation. A prominent role between experiments looking for LF and total LN violation play yet not observed processes of neutrinoless double beta decay. The GUT's and SUSY models offer a variety of mechanisms which allow this process to occur. They are based on mixing of Majorana neutrinos and/or R-parity violation hypothesis. Although the neutrinoless double beta decay has not been seen it is possible to extract from the lower limits of the lifetime upper limits for the effective electron Majorana neutrino mass, effective right handed weak interaction parameters, the effective Majoron coupling constant, R-parity violating SUSY parameters etc. In this work the limits on the LN violating parameters extracted from current neutrinoless double beta decay experiments are listed. Studies in respect to future neutrinoless double beta decay experimental projects are also presented.

20 pages including 3 figures, Latex, Talk presented at NANP99 (Non-Accelerator New Physics, Dubna, July 1999), to be published in Phys. Atom. Nucl

References in corpus (23)

• Measurement of a small atmospheric ${\nu }_{\mu }/{\nu }_e$ ratio
• Measurement of the atmospheric neutrino-induced upgoing muon flux using MACRO
• Measurement of the atmospheric neutrino flavour composition in Soudan 2
• Additional Nucleon Current Contributions to Neutrinoless Double Beta Decay
• Double Beta Decay
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• Double beta decay in left-right symmetric models
• No Parity Violation without R Parity Violation
• Dominance of Pion-exchange in R-parity Violating Supersymmetry Contributions to Neutrinoless Double Beta Decay
• Double beta decay of ${}^{48}$Ca
• The Pauli principle, QRPA and the two-neutrino double beta decay
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• Non-collapsing renormalized QRPA with proton-neutron pairing for neutrinoless double beta decay
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• A Large Scale Double Beta and Dark Matter Experiment: GENIUS
• LSND, solar and atmospheric neutrino oscillation experiments and R-parity violating Supersymmetry
• Grand unified theory constrained supersymmetry and neutrinoless double beta decay
• Quasiparticle Random Phase Approximation with inclusion of the Pauli Exclusion Principle
• Consistent BCS+RQRPA formalism with application to the double beta decay
• Perturbative description of nuclear double beta decay transitions
• Limits on R-parity non-conservation in MSSM with gauge mediated supersymmetry breaking from the neutrinoless double beta decay
• Self Consistent and Renormalized particle-particle RPA in a Schematic Model

Cited by in corpus (4)

• Neutrinoless Double Beta Decay of Ge76, Se82, Mo100 and Xe136 to excited 0^+ states
• Neutrinoless double beta decay within Self-consistent Renormalized Quasiparticle Random Phase Approximation and inclusion of induced nucleon currents
• The (muon^-,muon^+) conversion in nuclei as a probe of new physics
• Critical View to "The IGEX neutrinoless double beta decay experiment...." published in Phys. Rev. D, Volume 65 (2002) 092007