%0 Journal Article
%T Constraints on $2\ell 2q$ operators from $\mu - e$ flavour-changing meson decays
%+ Laboratoire Univers et Particules de Montpellier (LUPM)
%+ Institut de Physique Nucléaire de Lyon (IPNL)
%A Davidson, Sacha
%A Saporta, Albert
%< avec comité de lecture
%@ 1550-7998
%J Physical Review D
%I American Physical Society
%V 99
%N 1
%P 015032
%8 2019
%D 2019
%Z 1807.10288
%R 10.1103/PhysRevD.99.015032
%K decay rate
%K flavor changing
%K higher-order: 1
%K renormalization group
%K effective field theory
%K meson: decay
%K pseudoscalar meson: decay
%K lepton: flavor: violation
%K operator: pseudoscalar
%K operator: scalar
%K scale: electroweak interaction
%K Beyond the standard model
%Z Physics [physics]/High Energy Physics - Phenomenology [hep-ph]Journal articles
%X We study lepton-flavor-violating two- and three-body decays of pseudoscalar mesons in effective field theory. We give analytic formulas for the decay rates in the presence of a complete basis of QED×QCD-invariant operators. The constraints are obtained at the experimental scale, then translated to the weak scale via one-loop renormalization group equations. The large renormalization-group mixing between tensor and (pseudo)scalar operators weakens the constraints on scalar and pseudoscalar operators at the weak scale.
%G English
%2 https://hal.science/hal-01861994/document
%2 https://hal.science/hal-01861994/file/PhysRevD.99.015032.pdf
%L hal-01861994
%U https://hal.science/hal-01861994
%~ IN2P3
%~ CNRS
%~ UNIV-LYON1
%~ LUPM
%~ UNIV-MONTPELLIER
%~ LUPM_IFAC
%~ IP2I
%~ UDL
%~ UNIV-LYON
%~ CMS
%~ IPM
%~ PHABIO
%~ MANOIR
%~ THEORIE
%~ COSMOLOGIE
%~ MATNUC
%~ NEUTRINOS_IP2I
%~ ONDES_GRAVITATIONNELLES
%~ MATICE
%~ UM-2015-2021