Branching fraction and CP asymmetry of the decays and
Collaboration
10 pages
Published in:
- Phys.Lett.B 726 (2013) 646-655
- Published: Nov 4, 2013
e-Print:
- 1308.1277 [hep-ex]
Report number:
- CERN-PH-EP-2013-147,
- LHCB-PAPER-2013-034
Experiments:
Citations per year
Abstract: (Elsevier)
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 1 fb−1 and 2 fb−1 collected at centre-of-mass energies of s=7 TeV and s=8 TeV , 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 taken at s=7 TeV is used to search for Bc+→KS0K+ decays and results in the upper limit (fc⋅B(Bc+→KS0K+))/(fu⋅B(B+→KS0π+))<5.8×10−2 at 90% confidence level , where fc and fu denote the hadronisation fractions of a b¯ quark into a Bc+ or a B+ meson, respectively.Note:
- 13 pages, 2 figures
- B+: hadronic decay
- asymmetry: CP: measured
- B+: branching ratio
- p p: scattering
- anti-bottom
- hadronization
- LHC-B
- B/c+: hadronic decay
- B/c+: branching ratio: upper limit
- experimental results
References(0)
Figures(6)
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