The branching fractions of the decays B-0-->K(*0)gamma and B+-->K(*+)gamma are measured using a sample of 88x10(6)B(B) over bar events collected with the BABAR detector at the PEP-II asymmetric-energy e(+)e(-) collider. We find B(B-0-->K(*0)gamma)=[3.92+/-0.20(stat)+/-0.24(syst)]x10(-5), B(B+-->K(*+)gamma)=[3.87+/-0.28(stat)+/-0.26(syst)]x10(-5). Our measurements also constrain the direct CP asymmetry to be -0.074<A(B-->K(*)gamma)<0.049 and the isospin asymmetry to be -0.046<Delta(0-)<0.146, both at the 90% confidence level.

Measurement of branching fractions and CP and isospin asymmetries for B -> K-*gamma / 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 D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY. - ISSN 1550-7998. - 70:(2004). [10.1103/physrevd.70.112006]

Measurement of branching fractions and CP and isospin asymmetries for B -> K-*gamma

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

Abstract

The branching fractions of the decays B-0-->K(*0)gamma and B+-->K(*+)gamma are measured using a sample of 88x10(6)B(B) over bar events collected with the BABAR detector at the PEP-II asymmetric-energy e(+)e(-) collider. We find B(B-0-->K(*0)gamma)=[3.92+/-0.20(stat)+/-0.24(syst)]x10(-5), B(B+-->K(*+)gamma)=[3.87+/-0.28(stat)+/-0.26(syst)]x10(-5). Our measurements also constrain the direct CP asymmetry to be -0.074K(*)gamma)<0.049 and the isospin asymmetry to be -0.046
2004
01 Pubblicazione su rivista::01a Articolo in rivista
Measurement of branching fractions and CP and isospin asymmetries for B -> K-*gamma / 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 D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY. - ISSN 1550-7998. - 70:(2004). [10.1103/physrevd.70.112006]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/231304
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