Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2001-12-20
Phys.Rev. D66 (2002) 033005
Physics
High Energy Physics
High Energy Physics - Phenomenology
23 pages, RevTex, 3 Postscript figures
Scientific paper
10.1103/PhysRevD.66.033005
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.
Faessler Amand
Kovalenko Sergey
Schmidt Ivan
Simkovic Fedor
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