R-parity violating supersymmetric contributions to the neutron beta decay at the one-loop level

Abstract

The contribution of the R-parity violating minimal supersymmetric standard model to the neutron beta decay at the one-loop level is investigated. It is found that the baryon number and R-parity violating interactions contribute to the D correlation through one-loop corrections, while the tree level prediction is vanishing. The Fierz interference term is also investigated at the one-loop level by considering the lepton number and R-parity violating interactions. We show that future experimental progress can provide us with better constraints on some of the combinations of R-parity violating couplings.

arXiv comment13 pages, 6 figures, minor corrections

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• Electric dipole moment of the deuteron in the standard model with $NN-\Lambda N-\Sigma N$ coupling
• Quark scalar, axial, and pseudoscalar charges in the Schwinger-Dyson formalism