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: firstname.lastname@example.org
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
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.