UCL Discovery
UCL home » Library Services » Electronic resources » UCL Discovery

Improved measurements of CP-violating asymmetry amplitudes in B-0 ->pi(+)pi(-) decays

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. Green open access

[thumbnail of 1303750.pdf]
Preview
PDF
1303750.pdf

Download (247kB)

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
Downloads since deposit
101Downloads
Download activity - last month
Download activity - last 12 months
Downloads by country - last 12 months

Archive Staff Only

View Item View Item