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Scalar-leptoquark contributions to the neutrino magnetic moment

  • Elementary Particles and Fields
  • Theory
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Abstract

On the basis of astrophysical data on the neutrino magnetic moment, µ ν < 3 × 10−12 µ B , constraints on the scalar-leptoquark masses are found within the minimal model involving four-color symmetry. It is shown that data on the neutrino magnetic moment are compatible with the mixing-parameter range that admits the existence of scalar leptoquarks whose masses are below 1 TeV, reaching experimental limits obtained from direct searches. In the case of mass degeneracy for the scalar leptoquarks S m of electric charge Q = 2/3, the constraint m S m > 330 GeV is obtained, which is independent of the mixing parameters of the model. The results are compared with the predictions of other leptoquark models.

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Authors and Affiliations

  1. Yaroslavl State University, Sovetskaya ul. 14, Yaroslavl, 150000, Russia

    A. V. Povarov

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  1. A. V. Povarov
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Original Russian Text © A.V. Povarov, 2007, published in Yadernaya Fizika, 2007, Vol. 70, No. 5, pp. 905–911.

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Povarov, A.V. Scalar-leptoquark contributions to the neutrino magnetic moment. Phys. Atom. Nuclei 70, 871–878 (2007). https://doi.org/10.1134/S1063778807050109

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  • DOI: https://doi.org/10.1134/S1063778807050109

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