We present a measurement of the branching fraction of the decay B+/--->chi(c0)K(+/-) from a sample of 89x10(6) B (B) over bar pairs collected by the BABAR detector at the SLAC PEP-II asymmetric-energy B factory. The chi(c0) meson is reconstructed through its two-body decays to pi(+)pi(-) and K+K-. We measure B(B+/- --> chi(c0)K(+/-)) x B(chi(c0) --> pi(+)pi(-)) = [1.32(-0.27)(+0.28)(stat) +/- 0.26(syst)] x 10(-6) and B(B+/- --> chi(c0)K(+/-)) x B(chi(c0) --> K+K-) = [1.49(-0.34)(+0.36)(stat) +/- 0.22(syst)] x 10(-6). Using the known values for the chi(c0) decays branching fractions, we combine these results to obtain B(B+/--->chi(c0)K(+/-))=(2.7+/-0.7)x10(-4).

Measurement of the branching fraction for B-+/-->chi K-c0(+/-)

BIANCHI, Fabrizio;GAMBA, Diego;
2004-01-01

Abstract

We present a measurement of the branching fraction of the decay B+/--->chi(c0)K(+/-) from a sample of 89x10(6) B (B) over bar pairs collected by the BABAR detector at the SLAC PEP-II asymmetric-energy B factory. The chi(c0) meson is reconstructed through its two-body decays to pi(+)pi(-) and K+K-. We measure B(B+/- --> chi(c0)K(+/-)) x B(chi(c0) --> pi(+)pi(-)) = [1.32(-0.27)(+0.28)(stat) +/- 0.26(syst)] x 10(-6) and B(B+/- --> chi(c0)K(+/-)) x B(chi(c0) --> K+K-) = [1.49(-0.34)(+0.36)(stat) +/- 0.22(syst)] x 10(-6). Using the known values for the chi(c0) decays branching fractions, we combine these results to obtain B(B+/--->chi(c0)K(+/-))=(2.7+/-0.7)x10(-4).
2004
69
071103
-
B. Aubert; R. Barate; D. Boutigny; J. M. Gaillard; A. Hicheur; Y. Karyotakis; J. P. Lees; P. Robbe; V. Tisserand; A. Zghiche; A. Palano; A. Pompili; J...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/48067
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