Aubert, B;
Barate, R;
Boutigny, D;
Couderc, F;
Gaillard, JM;
Hicheur, A;
Karyotakis, Y;
... BaBar Collaboration; + view all
(2005)
Measurements of the branching fraction and CP-violation asymmetries in B-0 -> f(0)(980)K-S(0).
PHYS REV LETT
, 94
(4)
, Article 041802. 10.1103/PhysRevLett.94.041802.
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Abstract
We present measurements of the branching fraction and CP-violating asymmetries in the decay B-0-->f(0)(980)K-S(0). The results are obtained from a data sample of 123x10(6) Y(4S)-->B (B) over bar decays. From a time-dependent maximum likelihood fit, we measure the branching fraction B(B-0-->f(0)(980)(-->pi(+)pi(-))K-0)=(6.0+/-0.9+/-0.6+/-1.2)x10(-6), the mixing-induced CP violation parameter S=-1.62(-0.51)(+0.56)+/-0.09+/-0.04, and the direct CP violation parameter C=0.27+/-0.36+/-0.10+/-0.07, where the first errors are statistical, the second systematic, and the third due to model uncertainties. We measure the f(0)(980) mass and width to be m(f0)(980)=(980.6+/-4.1+/-0.5+/-4.0) MeV/c(2) and Gamma(f0)(980)=(43(-9)(+12)+/-3+/-9) MeV/c(2), respectively.
| Type: | Article |
|---|---|
| Title: | Measurements of the branching fraction and CP-violation asymmetries in B-0 -> f(0)(980)K-S(0) |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.94.041802 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.94.041802 |
| Language: | English |
| Additional information: | © 2005 The American Physical Society |
| Keywords: | B-DECAYS, PHYSICS |
| 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.ucl.ac.uk/id/eprint/1303700 |
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