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Measurement of the ratio of branching fractions and difference in CP asymmetries of the decays B+ → J/ψπ+ and B+ → J/ψK+

Abstract:

The ratio of branching fractions and the difference in CP asymmetries of the decays B+ → J/ψπ+ and B+ → J/ψK+ are measured using a data sample of pp collisions collected by the LHCb experiment, corresponding to an integrated luminosity of 3 fb^−1 at centre-of-mass energies of 7 and 8 TeV. The results are B(B+→J/ψπ+)/B(B+→J/ψK+)=(3.83±0.03±0.03)×10^−2, ACP(B+→J/ψπ+)−ACP(B+→J/ψK+)=(1.82±0.86±0.14)×10^−2, where the first uncertainties are statistical and the second are systematic. Combining this...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1007/JHEP03(2017)036

Authors


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Name:
French National Institute of Nuclear and Particle Physics
Publisher:
Springer
Journal:
Journal of High Energy Physics More from this journal
Volume:
2017
Issue:
3
Pages:
36
Publication date:
2017-03-01
Acceptance date:
2017-02-24
DOI:
EISSN:
1126-6708
ISSN:
1029-8479
Keywords:
Pubs id:
pubs:686444
UUID:
uuid:081770ff-28db-4092-ad7c-b98950310822
Local pid:
pubs:686444
Source identifiers:
686444
Deposit date:
2017-11-05

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