Schumann, J;
Wang, CH;
Abe, K;
Adachi, I;
Aihara, H;
Anipko, D;
Arinstein, K;
... Belle Collaboration; + view all
(2006)
Evidence for B ->eta(')pi and improved measurements for B ->eta ' K.
PHYS REV LETT
, 97
(6)
, Article 061802. 10.1103/PhysRevLett.97.061802.
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Abstract
We report evidence for the exclusive two-body charmless hadronic B meson decay B ->eta(')pi, and improved measurements of B ->eta K-'. The results are obtained from a data sample of 386x10(6) B (B) over bar pairs collected at the Upsilon(4S) resonance, with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We measure B(B+->eta(')pi(+))=[1.76(-0.62)(+0.67)(stat)(-0.14)(+0.15)(syst)]x10(-6) and B(B-0 ->eta(')pi(0))= [2.79(-0.96)(+1.02)(stat)(-0.34)(+0.25)(syst)]x10(-6). We also find the ratio of B(B+->eta K-'(+))/B(B-0 ->eta K-'(0))=1.17 +/- 0.08(stat)+/- 0.03(syst) and measure the direct CP asymmetries for the charged modes.
| Type: | Article |
|---|---|
| Title: | Evidence for B ->eta(')pi and improved measurements for B ->eta ' K |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.97.061802 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.97.061802 |
| Additional information: | © 2006 The American Physical Society |
| Keywords: | DECAYS, BELLE, QCD, PHYSICS, SEARCH, ETA' |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1308515 |
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