Aubert, B;
Barate, R;
Boutigny, D;
Gaillard, JM;
Hicheur, A;
Karyotakis, Y;
Lees, JP;
... BABAR Collaboration; + view all
(2003)
Measurements of CP-violating asymmetries and branching fractions in B meson decays to eta ' K.
PHYS REV LETT
, 91
(16)
, Article 161801. 10.1103/PhysRevLett.91.161801.
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Abstract
We present measurements of the branching fractions of the decays B+-->eta(')K(+) and B-0-->eta(')K(0). For B-0-->eta(')K(S)(0) we also measure the time-dependent CP-violation parameters (SetaKS0)-K-' and (CetaKS0)-K-', and for B+-->eta(')K(+) the time-integrated charge asymmetry A(ch). The data sample corresponds to 88.9x10(6) B (B) over bar pairs produced by e(+)e(-) annihilation at the Y(4S). The results are B(B+-->eta(')K(+))=(76.9+/-3.5+/-4.4)x10(-6), <tcal>B</tcal>(B-0-->eta(')K(0))=(60.6+/-5.6+/-4.6)x10(-6), (SetaKS0)-K-'=0.02+/-0.34+/-0.03, (CetaKS0)-K-'=0.10+/-0.22+/-0.04, and A(ch)=0.037+/-0.045+/-0.011.
| Type: | Article |
|---|---|
| Title: | Measurements of CP-violating asymmetries and branching fractions in B meson decays to eta ' K |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.91.161801 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.91.161801 |
| Language: | English |
| Additional information: | © 2003 The American Physical Society |
| Keywords: | QCD |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences 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-pp.ucl.ac.uk/id/eprint/1303636 |
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