Scalar-leptoquark contributions to the neutrino magnetic moment
- Yaroslavl State University (Russian Federation), E-mail: povarov@univ.uniyar.ac.ru
On the basis of astrophysical data on the neutrino magnetic moment, {mu}{sub {nu}} < 3 x 10{sup -12}{mu}{sub 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{sub m} of electric charge Q = 2/3, the constraint m{sub Sm} > 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.
- OSTI ID:
- 21075875
- Journal Information:
- Physics of Atomic Nuclei, Vol. 70, Issue 5; Other Information: DOI: 10.1134/S1063778807050109; Copyright (c) 2007 Nauka/Interperiodica; Article Copyright (c) 2007 Pleiades Publishing, Ltd; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7788
- Country of Publication:
- United States
- Language:
- English
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