Vector mesons in nuclear μ--e- conversion

Amand Faessler; Th Gutsche; Sergey Kovalenko; V. E. Lyubovitskij; Ivan Schmidt; F. Šimkovic

doi:10.1016/j.physletb.2004.03.068

Vector mesons in nuclear μ^--e^- conversion

Amand Faessler, Th Gutsche, Sergey Kovalenko, V. E. Lyubovitskij, Ivan Schmidt, F. Šimkovic

Resultado de la investigación: Contribución a una revista › Artículo › revisión exhaustiva

13 Citas (Scopus)

Resumen

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.

Idioma original	Inglés
Páginas (desde-hasta)	57-62
Número de páginas	6
Publicación	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volumen	590
N.º	1-2
DOI	https://doi.org/10.1016/j.physletb.2004.03.068
Estado	Publicada - 17 jun. 2004
Publicado de forma externa	Sí

Áreas temáticas de ASJC Scopus

Física nuclear y de alta energía

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title = "Vector mesons in nuclear μ--e- conversion",

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.",

keywords = "μ-e conversion in nuclei, 11.30.Er, 11.30.Fs, 12.60.-i, 13.10.+q, 23.40.Bw, Hadronization, Lepton flavor violation, Physics beyond the Standard Model, Vector mesons",

author = "Amand Faessler and Th Gutsche and Sergey Kovalenko and Lyubovitskij, {V. E.} and Ivan Schmidt and F. {\v S}imkovic",

note = "Funding Information: This work was supported by the DAAD under contract 415-ALECHILE/ALE-02/21672, by the FONDECYT projects 1030244, 1030355, by the DFG under contracts FA67/25-3, 436 SLK 113/8 and GRK683, by the State of Baden-W{\"u}rttemberg, LFSP “Low Energy Neutrinos”, by the President grant of Russia 1743 “Scientific Schools”, by the VEGA Grant agency of the Slovac Republic under contract No. 1/0249/03.",

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AU - Faessler, Amand

AU - Gutsche, Th

AU - Kovalenko, Sergey

AU - Lyubovitskij, V. E.

AU - Schmidt, Ivan

AU - Šimkovic, F.

N1 - Funding Information: This work was supported by the DAAD under contract 415-ALECHILE/ALE-02/21672, by the FONDECYT projects 1030244, 1030355, by the DFG under contracts FA67/25-3, 436 SLK 113/8 and GRK683, by the State of Baden-Württemberg, LFSP “Low Energy Neutrinos”, by the President grant of Russia 1743 “Scientific Schools”, by the VEGA Grant agency of the Slovac Republic under contract No. 1/0249/03.

PY - 2004/6/17

Y1 - 2004/6/17

N2 - 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.

AB - 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.

KW - μ-e conversion in nuclei

KW - 11.30.Er

KW - 11.30.Fs

KW - 12.60.-i

KW - 13.10.+q

KW - 23.40.Bw

KW - Hadronization

KW - Lepton flavor violation

KW - Physics beyond the Standard Model

KW - Vector mesons

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JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

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