Limits on the non-standard interactions of neutrinos from e+e− colliders

We provide an effective Lagrangian analysis of contact non-standard interactions of neutrinos with electrons, which can be effectively mediated by extra particles, and examine the associated experimental limits. At present, such interactions are strongly constrained only for ν μ : the bounds are loo...

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Bibliographic Details
Published in:Physics letters. B 2002-05, Vol.535 (1), p.207-218
Main Authors: Berezhiani, Zurab, Rossi, Anna
Format: Article
Language:English
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Summary:We provide an effective Lagrangian analysis of contact non-standard interactions of neutrinos with electrons, which can be effectively mediated by extra particles, and examine the associated experimental limits. At present, such interactions are strongly constrained only for ν μ : the bounds are loose for ν e and absent for ν τ . We emphasize the unique role played by the reaction e +e −→ν ν ̄ γ in providing direct constraints on such non-standard interactions.
ISSN:0370-2693
1873-2445
DOI:10.1016/S0370-2693(02)01767-7