Vector mesons in nuclear mu-e conversion

Details Vector mesons in nuclear mu-e conversion Vector mesons in nuclear mu-e conversion

2004-03-03

arxiv.org/abs/hep-ph/0403033v2

Phys.Lett. B590 (2004) 57-62

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, 1 figure, to be published in Phys. Lett. B

Scientific paper

10.1016/j.physletb.2004.03.068

We study nuclear mu-e conversion in the general framework of an effective Lagrangian approach without referring to any specific realization of the physics beyond the standard model (SM) responsible for lepton flavor violation (LFV). We show that vector meson exchange between lepton and nucleon currents plays an important role in this process. A new issue of this mechanism is the presence of the strange quark vector current contribution induced by the phi meson. This allows us to extract new limits on the LFV lepton-quark effective couplings from the existing experimental data.

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