CP violating effects in the decay Z→μ+μ−γ induced by ZZγ and Zγγ couplings

We analyze possible CP-violating effects induced in the Z decay with hard photon radiation by γZZ and γγZ anomalous vertices. We estimate the sensibility of future linear collider experiments on these couplings coming from CP-odd asymmetries associated to angular correlations of the three particle f...

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Bibliographic Details
Published in:Physics letters. B 2005-03, Vol.609 (1-2), p.68-72
Main Authors: Pérez, M.A., Ramírez-Zavaleta, F.
Format: Article
Language:English
Subjects:
Decays of intermediate bosons
Decays of z bosons
Exact sciences and technology
Gauge bosons
Other gauge bosons
Physics
Properties of specific particles
Specific reactions and phenomenology
The physics of elementary particles and fields
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Summary:We analyze possible CP-violating effects induced in the Z decay with hard photon radiation by γZZ and γγZ anomalous vertices. We estimate the sensibility of future linear collider experiments on these couplings coming from CP-odd asymmetries associated to angular correlations of the three particle final state in e+e−→Z→μ+μ−γ. We find that a linear collider with an integrated luminosity of 500 fb−1 and s=0.05 TeV can place the bound |h1γ,Z|
ISSN:0370-2693
1873-2445
DOI:10.1016/j.physletb.2005.01.039