Aubert, B;
Barate, R;
Boutigny, D;
Couderc, F;
Karyotakis, Y;
Lees, JP;
Poireau, V;
... BABAR Collaboration; + view all
(2005)
Improved measurements of CP-violating asymmetry amplitudes in B-0 ->pi(+)pi(-) decays.
PHYS REV LETT
, 95
(15)
, Article 151803. 10.1103/PhysRevLett.95.151803.
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Abstract
We present updated measurements of the CP-violating parameters S-pi pi and C-pi pi in B-0->pi(+)pi(-) decays. Using a sample of 227x10(6) Upsilon(4S) -> B (B) over bar decays collected with the BABAR detector at the PEP-II asymmetric-energy e(+)e(-) collider at SLAC, we observe 467 +/- 33 signal decays and measure S-pi pi = -0.30 +/- 0.17(stat) +/- 0.03(syst) and C-pi pi = -0.09 +/- 0.15(stat) +/- 0.04(syst).
| Type: | Article |
|---|---|
| Title: | Improved measurements of CP-violating asymmetry amplitudes in B-0 ->pi(+)pi(-) decays |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.95.151803 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.95.151803 |
| 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/1303750 |
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