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Measurements of CP-violating asymmetries in B-0 -> K-s(0)pi(0) decays

Aubert, B; Barate, R; Boutigny, D; Couderc, F; Gaillard, JM; Hicheur, A; Karyotakis, Y; ... BaBar Collaboration; + view all (2004) Measurements of CP-violating asymmetries in B-0 -> K-s(0)pi(0) decays. PHYS REV LETT , 93 (13) , Article 131805. 10.1103/PhysRevLett.93.131805. Green open access

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Abstract

We present a measurement of the time-dependent CP-violating (CPV) asymmetries in B-0-->K(S)(0)pi(0) decays based on 124x10(6) Y(4S)-->B (B) over bar decays collected with the BABAR detector at the PEP-II asymmetric-energy B factory at SLAC. In a sample containing 122+/-16 signal decays, we obtain the magnitudes of the direct CPV asymmetry C(KS)(0)pi(0)=0.40(-0.28)(+0.27)+/-0.09 and of the CPV asymmetry in the interference between mixing and decay S(KS)(0)pi(0)=0.48(-0.47)(+0.38)+/-0.06 where the first error is statistical and the second systematic.

Type: Article
Title: Measurements of CP-violating asymmetries in B-0 -> K-s(0)pi(0) decays
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.93.131805
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.93.131805
Language: English
Additional information: The American Physical Society
Keywords: B DECAYS, MODEL
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/1303680
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