The (muon^-,muon^+) conversion in nuclei as a probe of new physics
Abstract
A detailed study of the muonic analogue of neutrinoless double beta decay, (muon^-,muon^+) conversion, has been carried out for the A=44 nuclear system. We studied several lepton number violating (LNV) mechanisms potentially triggering this process: exchange by light and heavy Majorana neutrinos as well as exchange by supersymmetric particles participating in R-parity violating interactions. The nuclear structure has been taken into account within the renormalized Quasiparticle Random Phase Approximation method. To our knowledge, this is the first realistic treatment of nuclear structure aspects of the (muon^-,muon^+) conversion. We estimated the rate of this process utilizing the existing experimental constraints on the parameters of the underlying LNV interactions and conclude that the (muon^-,muon^+) conversion is hardly detectable in the near future experiments.
Keywords
Cite
@article{arxiv.hep-ph/0112271,
title = {The (muon^-,muon^+) conversion in nuclei as a probe of new physics},
author = {Fedor Simkovic and Amand Faessler and Sergey Kovalenko and Ivan Schmidt},
journal= {arXiv preprint arXiv:hep-ph/0112271},
year = {2009}
}
Comments
23 pages, RevTex, 3 Postscript figures