We measure the branching fractions and CP asymmetries in the decays B-0 --> (K+K-KS0) and B+ --> (K+KSKS0)-K-0 using a sample of approximately 122 x 10(6) B(B) over bar pairs collected by the BABAR detector. From a time-dependent analysis of the (K+K-KS0) sample that excludes phiK(S)(0), the values of the CP-violation parameters are S = -0.56+/-0.25+/-0.04 and C = -0.10+/-0.19+/-0.10, where the first uncertainty is statistical and the second is systematic. We confirm that the final state is nearly purely CP even and extract the standard model parameter sin2beta = 0.57+/-0.26+/-0.04(-0)(+0.17) where the last error is due to uncertainty on the CP content. We present the first measurement of the CP-violating charge asymmetry A(CP)(B+ --> (K+KSKS0)-K-0) = -0.04+/-0.11+/-0.02. The branching fractions are B(B-0 --> (K+K-K0)) = (23.8+/-2.0+/-1.6) x 10(-6) and B(B+ --> (K+KSKS0)-K-0) = (10.7+/-1.2+/-1.0) x 10(-6).

Branching fractions and CP asymmetries in B-0 ->(K+K-KS0) and B+->(K+KSKS0)-K-0 / Aubert, B., Barate, R., Boutigny, D., Couderc, F., Gaillard, J.m., Hicheur, A., Karyotakis, Y., Lees, J.p., Tisserand, V., Zghiche, A., Palano, A., Pompili, A., Chen, J.c., Qi, N.d., Rong, G., Wang, P., Zhu, Y.s., Eigen, G., Ofte, I., Stugu, B., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 93:(2004), pp. 181805-1-181805-7. [10.1103/physrevlett.93.181805]

Branching fractions and CP asymmetries in B-0 ->(K+K-KS0) and B+->(K+KSKS0)-K-0

DEL RE, Daniele;RAHATLOU, SHAHRAM;SARTI, ALESSIO;BELLINI, Fabio;CAVOTO, Gianluca;FACCINI, Riccardo;FERRONI, Fernando;GASPERO, Mario;VOENA C;
2004

Abstract

We measure the branching fractions and CP asymmetries in the decays B-0 --> (K+K-KS0) and B+ --> (K+KSKS0)-K-0 using a sample of approximately 122 x 10(6) B(B) over bar pairs collected by the BABAR detector. From a time-dependent analysis of the (K+K-KS0) sample that excludes phiK(S)(0), the values of the CP-violation parameters are S = -0.56+/-0.25+/-0.04 and C = -0.10+/-0.19+/-0.10, where the first uncertainty is statistical and the second is systematic. We confirm that the final state is nearly purely CP even and extract the standard model parameter sin2beta = 0.57+/-0.26+/-0.04(-0)(+0.17) where the last error is due to uncertainty on the CP content. We present the first measurement of the CP-violating charge asymmetry A(CP)(B+ --> (K+KSKS0)-K-0) = -0.04+/-0.11+/-0.02. The branching fractions are B(B-0 --> (K+K-K0)) = (23.8+/-2.0+/-1.6) x 10(-6) and B(B+ --> (K+KSKS0)-K-0) = (10.7+/-1.2+/-1.0) x 10(-6).
2004
01 Pubblicazione su rivista::01a Articolo in rivista
Branching fractions and CP asymmetries in B-0 ->(K+K-KS0) and B+->(K+KSKS0)-K-0 / Aubert, B., Barate, R., Boutigny, D., Couderc, F., Gaillard, J.m., Hicheur, A., Karyotakis, Y., Lees, J.p., Tisserand, V., Zghiche, A., Palano, A., Pompili, A., Chen, J.c., Qi, N.d., Rong, G., Wang, P., Zhu, Y.s., Eigen, G., Ofte, I., Stugu, B., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 93:(2004), pp. 181805-1-181805-7. [10.1103/physrevlett.93.181805]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/231925
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