Study of CP-violating asymmetries in B-0 ->pi(+) pi(-), K+ pi(-) decays

Study of CP-violating asymmetries in B-0 ->pi(+) pi(-), K+ pi(-) decays

We present a measurement of the time-dependent CP-violating asymmetries in neutral B decays to the eigenstate, and an updated measurement of the charge asymmetry in B0→K+π-~ decays. In a sample of 33 million Y(4S)→BB̄ decays collected with the BABAR detector at the SLAC PEP-II asymmetric B factory,...

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Prif Awduron: Aubert, B, Boutigny, D, Gaillard, J, Hicheur, A, Karyotakis, Y, Lees, J, Robbe, P, Tisserand, V, Palano, A, Pompili, A, Chen, G, Chen, J, Qi, N, Rong, G, Wang, P, Zhu, Y, Eigen, G, Stugu, B, Abrams, G, Borgland, A, Breon, AB, Brown, D, Button-Shafer, J, Cahn, R, Clark, A
Fformat: Journal article
Iaith:English
Cyhoeddwyd: 2002
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Crynodeb:We present a measurement of the time-dependent CP-violating asymmetries in neutral B decays to the eigenstate, and an updated measurement of the charge asymmetry in B0→K+π-~ decays. In a sample of 33 million Y(4S)→BB̄ decays collected with the BABAR detector at the SLAC PEP-II asymmetric B factory, we find 65-11+12 and 217±18 K+π- candidates and measure the asymmetry parameters Sππ=0.03-0.56+0.53±0.111, Cππ=-0.25-0.17+0.45±0.14, and AKπ = -0.07±0. 08±0.02, where the first error is statistical and the second is systematic. © 2002 The American Physical Society.

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