Leptonic CP violation in Z0 decays

Choudhury, Debajyoti ; Joshipura, Anjan S. ; Rindani, Saurabh D. (1991) Leptonic CP violation in Z0 decays Physical Review Letters, 67 (5). pp. 548-551. ISSN 0031-9007

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Official URL: http://prl.aps.org/abstract/PRL/v67/i5/p548_1

Related URL: http://dx.doi.org/10.1103/PhysRevLett.67.548


An SU(2)L⊗U(1)γ model containing exotic charged leptons can allow sizeable leptonic flavor violations (LFV) and hence rare Z decays into leptons of different flavors. The rates as well as CP-violating asymmetries are constrained using available limits on LFV and data from the CERN e+e collider LEP on Z→lili,li=e,μ,τ. Sizeable CP-violating rate asymmetries are theoretically possible in the model and are allowed by the former data. In contrast, the measured leptonic Z widths severely constrain these asymmetries. As a result, an experimental observation of the CP asymmetries in the model seems unlikely with less than 109 Z's.

Item Type:Article
Source:Copyright of this article belongs to The American Physical Society.
ID Code:43616
Deposited On:14 Jun 2011 10:56
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