A NEW CONTRIBUTION TO THE FLAVOR-CHANGING LEPTON-PHOTON VERTEX

Authors
PALLE D
Citation
D. Palle, A NEW CONTRIBUTION TO THE FLAVOR-CHANGING LEPTON-PHOTON VERTEX, Nuovo cimento della Società Italiana di Fisica. A. Nuclei, particles and fields, 110(2), 1997, pp. 143-147
Citations number
7
Categorie Soggetti
Physics, Particles & Fields
Journal title
Nuovo cimento della Società Italiana di Fisica. A. Nuclei, particles and fields → ACNP
ISSN journal
11241861
Volume
110
Issue
2
Year of publication
1997
Pages
143 - 147
Database
ISI
SICI code
1124-1861(1997)110:2<143:ANCTTF>2.0.ZU;2-A
Abstract
We show that the correct pepturbation theory for mixed fermion states leads to nonvanishing contributions of the dimension-four vertex opera tors for flavour-changing transitions. Their contributions to the ampl itude are of the same order of magnitude as the dimension-five vertex operators. Considerations are valid irrespective of the electroweak mo del.