Constraints on four-fermion contact interactions from precise electroweak measurements

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Data

1998-12-01

Autores

Gonzalez-Garcia, M. C.
Gusso, A.
Novaes, Sérgio Ferraz [UNESP]

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Iop Publishing Ltd

Resumo

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.

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Journal of Physics G-nuclear and Particle Physics. Bristol: Iop Publishing Ltd, v. 24, n. 12, p. 2213-2221, 1998.