Constraints on four-fermion contact interactions from precise electroweak measurements
Authors: Gonzalez-Garcia, M.C.; Gusso, A.; Novaes, S.F.
Source: Journal of Physics G: Nuclear and Particle Physics, Volume 24, Number 12, 1998 , pp. 2213-2221(9)
Publisher: IOP Publishing
Abstract:We establish constraints on a general four-fermion contact interaction from precise measurements of electroweak parameters. We compute the one-loop contribution for the leptonic Z width, anomalous magnetic, weak-magnetic, electric and weak dipole moments of leptons in order to extract bounds on the energy scale of these effective interactions.
Document Type: Miscellaneous
Affiliations: Instituto de Física Teórica, Universidade Estadual Paulista, Rua Pamplona 145, CEP 01405-900 São Paulo, Brazil
Publication date: January 1, 1998