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  4. Evidence for the decay B-0 -> J/psi omega and measurement of the relative branching fractions of B-s(0) meson decays to J/psi eta and J/psi eta '
 
research article

Evidence for the decay B-0 -> J/psi omega and measurement of the relative branching fractions of B-s(0) meson decays to J/psi eta and J/psi eta '

Aaij, R.
•
Abellan Beteta, C.
•
Adametz, A.
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2013
Nuclear Physics B

First evidence of the B-0 -> J/psi omega decay is found and the B-s(0) -> J/psi eta and B-s(0) -> J/psi eta' decays are studied using a dataset corresponding to an integrated luminosity of 1.0 fb(-1) collected by the LHCb experiment in proton-proton collisions at a centre-of-mass energy of root s = 7 TeV. The branching fractions of these decays are measured relative to that of the B-0 -> J/psi rho(0) decay: B(B-0 -> J/psi omega)/B(B-0 -> J/psi rho(0)) = 0.89 +/- 0.19(stat)(-0.13)(+0.07)(syst), B(B-s(0) -> J/psi eta)/B(B-0 -> J/psi rho(0)) = 14.0 +/- 1.2(stat)(-1.5)(+1.1)(syst)(-1.0)(+1.1)(f(d)/f(s)), B(B-s(0) -> J/psi eta')/B(B-0 -> J/psi rho(0)) = 12.7 +/- 1.1(stat)(-1.3)(+0.5)(syst)(-0.9)(+1.0)(f(d)/f(s)), where the last uncertainty is due to the knowledge of f(d)/f(s), the ratio of b-quark hadronization factors that accounts for the different production rate of B-0 and B-s(0) mesons. The ratio of the branching fractions of B-s(0) -> J/psi eta' and B-s(0) -> J/psi eta decays is measured to be B(B-s(0) -> J/psi eta')/B(B-s(0) -> J/psi eta) = 0.90 +/- 0.09(stat)(-0.02)(+0.06)(syst). (C) 2012 CERN. Published by Elsevier B.V. All rights reserved.

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Type
research article
DOI
10.1016/j.nuclphysb.2012.10.021
Web of Science ID

WOS:000312419400001

Author(s)
Aaij, R.
Abellan Beteta, C.
Adametz, A.
Adeva, B.
Adinolfi, M.
Adrover, C.
Affolder, A.
Ajaltouni, Z.
Albrecht, J.
Alessio, F.
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Corporate authors
LHCb Collaboration
Date Issued

2013

Publisher

Elsevier Science Bv

Published in
Nuclear Physics B
Volume

867

Issue

3

Start page

547

End page

566

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LPHE  
Available on Infoscience
March 28, 2013
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/90735
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