Abstract
The branching ratios and differential distributions for the four-leptonic decays \({B^ - } \to {\mu ^ + }{\mu ^ - }{\bar v_e}{e^ - }\), \({B^ - } \to {e^ + }{e^ - }{\bar v_\mu }{\mu ^ - }\), and \({B^ - } \to {\mu ^ + }{\bar v_\mu }{\mu ^ - }{\mu ^ - }\) are calculated within the Standard Model. The branching ratios for the rare decays Bd,s → e+e−μ+μ− and Bd,s → μ+μ−μ+μ− are estimated. Methods for testing the lepton universality in rare multileptonic decays of charged and neutral B mesons are proposed.
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Original Russian Text © A.V. Danilina, N.V. Nikitin, 2018, published in Yadernaya Fizika, 2018, Vol. 81, No. 3, pp. 331–345.
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Danilina, A.V., Nikitin, N.V. Four-Leptonic Decays of Charged and Neutral B Mesons within the Standard Model. Phys. Atom. Nuclei 81, 347–359 (2018). https://doi.org/10.1134/S1063778818030092
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DOI: https://doi.org/10.1134/S1063778818030092