Measurements of CP-violating Asymmetries and Branching Fractions in B Meson Decays to eta' K
| dc.creator | The BABAR Collaboration | |
| dc.creator | Aubert, B. | |
| dc.date | 2003-03-31 | |
| dc.date | 2003-08-16 | |
| dc.date.accessioned | 2026-07-07T12:01:56Z | |
| dc.date.available | 2026-07-07T12:01:56Z | |
| dc.description | We present measurements of the branching fractions of the decays B+ -> eta' K+ and B0 -> eta' K0. For B0 -> eta' K0s we also measure the time dependent CP-violation parameters S and C, and for B+ ->eta' K+ the time-integrated charge asymmetry Ach. The data sample corresponds to 88.9 million BBbar pairs produced by e+e- annihilation at the Upsillon(4S). The results are B(B+->eta'K+) = (76.9 +/- 3.5 +/- 4.4)*10^-6, B(B0->eta'K0) = (60.6 +/- 5.6 +/- 4.6)*10^-6, S = 0.02+/-0.34 +/- 0.03, C = 0.10+/-0.22 +/- 0.04, and Ach = 0.037 +/- 0.045+/- 0.011. | |
| dc.description | 7 pages, 2 postscript figues, resubmitted Phys. Rev. Letters in response to review. Revised K0s reconstruction efficiency calculation resulting in ~10% upward revision of the value of B(B0->eta'K0) (and downward shift of the charged/neutral ratio of decay rates); minor revision of systematic on C | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0303046 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0303046 | |
| dc.identifier | Phys.Rev.Lett.91:161801,2003 | |
| dc.identifier | doi:10.1103/PhysRevLett.91.161801 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/207270 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Measurements of CP-violating Asymmetries and Branching Fractions in B Meson Decays to eta' K | |
| dc.type | text |