https://doi.org/10.1051/epjconf/201819102011
Differential distributions in rare four-leptonic B-decays.
1
Faculty of Physics, M.V. Lomonosov Moscow State University, Moscow, 119991 Russia
2
D. V. Skobeltsyn Institute of Nuclear Physics, M.V. Lomonosov Moscow State University, Moscow, 119991 Russia
3
A.I. Alikhanov Institute for Theoretical and Experimental Physics, National Research Center Kurchatov Institute, Bol'shaya Cheremuskinskaya ul. 25, Moscow, 117218 Russia.
* e-mail: anna.danilina@cern.ch
** e-mail: Nikolai.Nikitine@cern.ch
Published online: 31 October 2018
The branching ratios and differential distributions for the fourleptonic decays B- → μ+μ- νe e-, B- → e+e- νμ μ- and B- → μ+ νμ μ-μ- are calculated within the Standard Model. The contributions of the virtual photon emission from the b- and u- quarks and the bremsstrahlung contribution were taken into account. The resonances contributions were calculated using the vector dominance model. In this paper we present the differential distributions for the B- → μ+μ- νe e- decay obtained by two methods. Testing the lepton universality in rare multileptonic decays of charged and neutral B mesons are discussed.
© The Authors, published by EDP Sciences, 2018
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