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Measurement of CP violation and the B_s^0 meson decay width difference with B_s^0\to J/ψK^+ K^- and B_s^0\to J/ψπ^+π^- decays

Abstract:

The time-dependent CP asymmetry in B_s^0\to J/\psi K^+K^- decays is measured using $pp$ collision data at \sqrt{s}=7TeV, corresponding to an integrated luminosity of 1.0fb^-1, collected with the LHCb detector. The decay time distribution is characterised by the decay widths \Gamma_L and \Gamma_H of the light and heavy mass eigenstates of the B_s^0--\bar{B}_s^0 system and by a CP-violating phase \phi_s. In a sample of 27\,617 B_s^0\to J/\psi K^+K^- decays, where the dominant contribution comes...

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Publication status:
Published

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Publisher copy:
10.1103/PhysRevD.87.112010

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Journal:
Phys. Rev. D More from this journal
Volume:
87
Issue:
11
Pages:
112010
Publication date:
2013-04-09
DOI:
EISSN:
1550-2368
ISSN:
1550-7998
Language:
English
Keywords:
Pubs id:
pubs:411439
UUID:
uuid:a81f10fa-d777-42ff-b48a-2658d3aba4d0
Local pid:
pubs:411439
Source identifiers:
411439
Deposit date:
2013-11-16

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