Aubert, B;
Barate, R;
Boutigny, D;
Couderc, F;
Gaillard, JM;
Hicheur, A;
Karyotakis, Y;
... BABAR Collaboration; + view all
(2004)
Measurement of the time-dependent CP asymmetry in the B-0 ->phi K-0 decay.
PHYS REV LETT
, 93
(7)
, Article 071801. 10.1103/PhysRevLett.93.071801.
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Abstract
We present a measurement of the time-dependent CP asymmetry for the neutral B-meson decay B-0-->phiK(0). We use a sample of approximately 114x10(6) B-meson pairs taken at the Y(4S) resonance with the BABAR detector at the PEP-II B-meson factory at SLAC. We reconstruct the CP eigenstates phiK(S)(0) and phiK(L)(0), where phi-->K+K-, K-S(0)-->pi(+)pi(-), and K-L(0) is observed via its hadronic interactions. The other B meson in the event is tagged as either a B-0 or (B) over bar (0) from its decay products. The values of the CP-violation parameters are S-phiK=0.47+/-0.34(stat)(-0.06)(+0.08)(syst) and C-phiK=0.01+/-0.33(stat)+/-0.10(syst).
| Type: | Article |
|---|---|
| Title: | Measurement of the time-dependent CP asymmetry in the B-0 ->phi K-0 decay |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.93.071801 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.93.071801 |
| Language: | English |
| Additional information: | The American Physical Society |
| Keywords: | B-MESON DECAYS, VIOLATION |
| 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/1303674 |
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