University of Tasmania
Browse

File(s) not publicly available

The three photon vertex

journal contribution
posted on 2023-05-18, 05:19 authored by Robert DelbourgoRobert Delbourgo
Owing to weak interactions, the three-photon vertex is non-zero. From gauge invariance and symmetry requirements, it is shown that the C=-1P=-1 vertex amplitudes are at least of order q7 in the limit of soft photon momentum q and that if any two photons are placed on mass shell the form factors vanish identically. To lowest order in q the effective current is in fact given by jrho =b epsilon kappa lambda mu nu ( delta 2(Fkappa lambda delta rho Fmu nu )- delta rho (Fkappa lambda delta 2Fmu nu )). b is estimated in certain models of weak interactions.

History

Publication title

Journal of Physics G: Nuclear and Particle Physics

Issue

11

Pagination

787-794

ISSN

0954-3899

Department/School

School of Natural Sciences

Publisher

Iop Publishing Ltd

Place of publication

Dirac House, Temple Back, Bristol, England, Bs1 6Be

Repository Status

  • Restricted

Socio-economic Objectives

Expanding knowledge in the physical sciences

Usage metrics

    University Of Tasmania

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC