The B0s → J/ψ K0S branching fraction is measured in a data sample corresponding to 0.41 fb^−1 of integrated luminosity collected with the LHCb detector at the LHC. This channel is sensitive to the penguin contributions affecting the sin 2β measurement from B0 → J/ψ K0S. The time-integrated branching fraction is measured to be B(B0s → J/ψ K0S) = (1.83 ± 0.28) x 10^−5. This is the most precise measurement to date.
R. Aaij, C. Abellan Beteta, B. Adeva, M. Adinolfi, C. Adrover, A. Affolder, et al. (2012). Measurement of the B0s → J/ψ K0S Branching Fraction. PHYSICS LETTERS. SECTION B, 713(3), 172-179 [10.1016/j.physletb.2012.05.062].
Measurement of the B0s → J/ψ K0S Branching Fraction
CARBONE, ANGELO;GALLI, DOMENICO;PERAZZINI, STEFANO;VAGNONI, VINCENZO MARIA;ZANGOLI, MARIA;
2012
Abstract
The B0s → J/ψ K0S branching fraction is measured in a data sample corresponding to 0.41 fb^−1 of integrated luminosity collected with the LHCb detector at the LHC. This channel is sensitive to the penguin contributions affecting the sin 2β measurement from B0 → J/ψ K0S. The time-integrated branching fraction is measured to be B(B0s → J/ψ K0S) = (1.83 ± 0.28) x 10^−5. This is the most precise measurement to date.File in questo prodotto:
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