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research article
Measurement of the CP-violating phase phi(s) in (B)over-bar(s)(0) -> J / psi pi(+)pi(-) decays
2014
The mixing-induced CP-violating phase phi(s) in B-s(0) and (B) over bar (0)(s) decays is measured using the J / psi pi(+)pi(-) final state in data, taken from 3 fb(-1) of integrated luminosity, collected with the LHCb detector in 7 and 8 TeV centre-of-mass pp collisions at the LHC. A time-dependent flavour-tagged amplitude analysis, allowing for direct CP violation, yields a value for the phase phi(s) = 70 +/- 68 +/- 8 mrad. This result is consistent with the Standard Model expectation and previous measurements. (C) 2014 The Authors. Published by Elsevier B.V.
Type
research article
Web of Science ID
WOS:000341487800025
Authors
Aaij, R.
•
Adeva, B.
•
Adinolfi, M.
•
Affolder, A.
•
Ajaltouni, Z.
•
Akar, S.
•
Albrecht, J.
•
Alessio, F.
•
Alexander, M.
•
Ali, S.
Corporate authors
LHCb Collaboration
Publication date
2014
Publisher
Published in
Volume
736
Start page
186
End page
195
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
October 23, 2014
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