The analytical helicity amplitudes for Z -> 3 gamma, gamma gamma -> gamma Z and gamma Z -> gamma gamma via W-loop, charged scalar-loop

Authors
Dong, FX Zhou, XJ
Citation
Fx. Dong et Xj. Zhou, The analytical helicity amplitudes for Z -> 3 gamma, gamma gamma -> gamma Z and gamma Z -> gamma gamma via W-loop, charged scalar-loop, COMM TH PHY, 34(2), 2000, pp. 295-300
Citations number
17
Categorie Soggetti
Physics
Journal title
COMMUNICATIONS IN THEORETICAL PHYSICS
ISSN journal
02536102 → ACNP
Volume
34
Issue
2
Year of publication
2000
Pages
295 - 300
Database
ISI
SICI code
0253-6102(20000915)34:2<295:TAHAFZ>2.0.ZU;2-0
Abstract
The analytic helicity amplitudes of Z -->, 3 gamma, gamma gamma --> Z gamma and gamma Z --> gamma gamma via W-loop and charged scalar-loop are present ed. There is some difference between our results and those in Z. Phys. C60 (1993) 175 (E.W.N. Glover and A.G. Morgan) for Z --> 3 gamma via W-loop and fermion-loop, which has different physical meanings.