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Branching fraction and CP asymmetry of the decays B+ -> K-S(0)pi(+) and B+ -> (KSK+)-K-0

Abstract:

An analysis of B+→KS0π+ and B+→KS0K+ decays is performed with the LHCb experiment. The pp collision data used correspond to integrated luminosities of 1fb-1 and 2fb-1 collected at centre-of-mass energies of √s=7TeV and √s=8TeV, respectively. The ratio of branching fractions and the direct CP asymmetries are measured to be B(B+→KS0K+)/B(B+→KS0π+)=0.064±0.009 (stat.)±0.004(syst.), ACP(B+→KS0π+)=-0.022±0.025(stat.)±0.010 (syst.) and ACP(B+→KS0K+)=-0.21±0.14 (stat.)±0.01 (syst.). The data sample ...

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Publication status:
Published

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Journal:
Physics Letters B
Volume:
726
Issue:
4-5
Pages:
646-655
Publication date:
2013-11-04
DOI:
ISSN:
0370-2693
Source identifiers:
436998
Language:
English
Pubs id:
pubs:436998
UUID:
uuid:fdec6e6c-6beb-4b02-b64c-f5f170871a20
Local pid:
pubs:436998
Deposit date:
2014-02-13

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