EPJ Web Conf.
Volume 158, 2017The XXIII International Workshop “High Energy Physics and Quantum Field Theory” (QFTHEP 2017)
|Number of page(s)||8|
|Section||Theoretical and Experimental Studies of Flavor Physics and Exotic States|
|Published online||24 October 2017|
Annihilation-Type Semileptonic B-Meson Decays
P. G. Demidov Yaroslavl State University, Yaroslavl, Russia
* e-mail: email@example.com
Published online: 24 October 2017
The rare semileptonic decay B0 → ϕℓ+ℓ−, where ℓ is an electron or muon, is considered in the QCD Factorization approach. The differential branching fraction, partially integrated over the interval q2 = [1 GeV2, 8 GeV2] of dilepton invariant mass squared, is estimated. The systematic uncertainty up to 10% resulting from the choice of the B-meson distribution amplitude is determined. The purely perturbative contribution to the B0 → ϕℓ+ℓ− total branching fraction is found to be B ∼ 10−12 which suggests searches of the B0 → ϕμ+μ− decay in the four-muon events at the LHC collider.
© The authors, published by EDP Sciences, 2017
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