We present a measurement of the time-dependent CP-violating asymmetries in neutral B decays to the pi(+)pi(-) CP eigenstate, and an updated measurement of the charge asymmetry in B-0--> K+ pi(-) decays. In a sample of 33 million Y(4S) --> B (B) over bar decays collected with the BABAR detector at the SLAC PEP-II asymmetric B factory, we find 65(-11)(+12) pi(+) pi(-) and 217+/-18 K+ pi(-) candidates and measure the asymmetry parameters S-pipi = 0.03(-0.56)(+0.53)+/-0.11, C-pipi = -0.25(-0.47)(+0.45)+/-0.14, and A(Kpi) = 0.07+/-0.08+/-0.02, where the first error is statistical and the second is systematic.

Study of CP-violating asymmetries in B-0 ->pi(+) pi(-), K+ pi(-) decays / B., A., D., B., J. M., G., A., H., Y., K., J. P., L., P., R., V., T., A., P., A., P., G. P., C., J. C., C., N. D., Q.i., G., R., P., W., Y. S., Z., G., E., B., S., G. S., A., A. W., B., et al.. - In: PHYSICAL REVIEW D. - ISSN 0556-2821. - 65:(2002), p. 051502. [10.1103/physrevd.65.051502]

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

RAHATLOU, SHAHRAM;CAVOTO, Gianluca;DEL RE, Daniele;FACCINI, Riccardo;FERRONI, Fernando;C. Voena;
2002

Abstract

We present a measurement of the time-dependent CP-violating asymmetries in neutral B decays to the pi(+)pi(-) CP eigenstate, and an updated measurement of the charge asymmetry in B-0--> K+ pi(-) decays. In a sample of 33 million Y(4S) --> B (B) over bar decays collected with the BABAR detector at the SLAC PEP-II asymmetric B factory, we find 65(-11)(+12) pi(+) pi(-) and 217+/-18 K+ pi(-) candidates and measure the asymmetry parameters S-pipi = 0.03(-0.56)(+0.53)+/-0.11, C-pipi = -0.25(-0.47)(+0.45)+/-0.14, and A(Kpi) = 0.07+/-0.08+/-0.02, where the first error is statistical and the second is systematic.
2002
01 Pubblicazione su rivista::01a Articolo in rivista
Study of CP-violating asymmetries in B-0 ->pi(+) pi(-), K+ pi(-) decays / B., A., D., B., J. M., G., A., H., Y., K., J. P., L., P., R., V., T., A., P., A., P., G. P., C., J. C., C., N. D., Q.i., G., R., P., W., Y. S., Z., G., E., B., S., G. S., A., A. W., B., et al.. - In: PHYSICAL REVIEW D. - ISSN 0556-2821. - 65:(2002), p. 051502. [10.1103/physrevd.65.051502]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/458146
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