2020 Impact factor 4.590
Particles and Fields
Eur. Phys. J. C 4, 661-667
DOI 10.1007/s100529800811

CP-odd anomalous W-boson couplings from supersymmetry

Minako Kitahara1 - Miho Marui2 - Noriyuki Oshimo3 - Tomomi Saito1 - Akio Sugamoto1

1 Department of Physics and Graduate School of Humanities and Sciences, Ochanomizu University, Otsuka 2-1-1, Bunkyo-ku, Tokyo 112, Japan
2 Faculty of Social Information Science, Kure University, Gouhara 2411-26, Kure, Hiroshima 724-07, Japan - Institute for Cosmic Ray Research, University of Tokyo, Midori-cho 3-2-1, Tanashi, Tokyo 188, Japan

Received: 6 October 1997 / Published online: 26 February 1998

The supersymmetric standard model contains a new CP-violating phase in the mass matrices for charginos and neutralinos, which could induce CP-odd anomalous couplings for the WWZ and $WW\gamma$ vertices at the one-loop level. We study these couplings, paying attention to the model-parameter and q2 dependencies. It is shown that the CP-odd form factors could have values of order 10-3-10-4, which are much larger than those predicted by the standard model. We also discuss the possibility of examining these form factors in experiments.

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