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

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

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.

Original language	English
Pages (from-to)	57-62
Number of pages	6
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	590
Issue number	1-2
DOIs	https://doi.org/10.1016/j.physletb.2004.03.068
Publication status	Published - 17 Jun 2004
Externally published	Yes

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

ASJC Scopus subject areas

Nuclear and High Energy Physics

Access to Document

10.1016/j.physletb.2004.03.068

Cite this

@article{31e88f5fe87a403cbc750bb5167225a4,

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.",

year = "2004",

month = jun,

day = "17",

doi = "10.1016/j.physletb.2004.03.068",

language = "English",

volume = "590",

pages = "57--62",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier",

number = "1-2",

}

TY - JOUR

T1 - Vector mesons in nuclear μ--e- conversion

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

UR - http://www.scopus.com/inward/record.url?scp=2442486430&partnerID=8YFLogxK

U2 - 10.1016/j.physletb.2004.03.068

DO - 10.1016/j.physletb.2004.03.068

M3 - Article

AN - SCOPUS:2442486430

VL - 590

SP - 57

EP - 62

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

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

SN - 0370-2693

IS - 1-2

ER -