6533b7cffe1ef96bd12595a2

RESEARCH PRODUCT

Eta Gamma Z anomaly from the eta ->gamma mu(+)mu(-) decay

José Bernabeu AlberolaDaniel Gómez DummJorge Vidal Perona

subject

High Energy Physics::ExperimentNuclear ExperimentPartícules (Física nuclear)

description

We show that the eta gamma Z anomaly can be measured by analysing parity-violating effects in the eta --> gamma mu(+)mu(-) decay. In this sense, we find that the longitudinal polarization of the outgoing mu(+) is an appropriate observable to be considered in future high-statistics eta factories. The effect is expected to lie in the range 10(-5)-10(-6) in the Standard Model.

10.1016/s0370-2693(98)http://dx.doi.org/10.1016/S0370-2693(98)