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Vector mesons in nuclear μ<sup>-</sup>-e<sup>-</sup> conversion
Journal
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Date Issued
2004-06-17
Author(s)
Faessler, Amand
Gutsche, Th
Šimkovic, F.
Abstract
We study nuclear µ−–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 (L/f ). 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 φ meson. This allows us to extract
new limits on the L/f lepton–quark effective couplings from the existing experimental data.
any specific realization of the physics beyond the Standard Model (SM) responsible for lepton flavor violation (L/f ). 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 φ meson. This allows us to extract
new limits on the L/f lepton–quark effective couplings from the existing experimental data.
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