Motivated by the polarization anomaly in the B ->phi(1020)K-{*}(892) decay, we extend our search for other K-{*} final states in the decay B-0 ->phi(1020)K-{*}0 with the K-{*}0 -> K+pi(-) invariant mass above 1.6 GeV. The final states considered include the K-{*}(1680)(0), K-3({*})(1780)(0), K-4({*})(2045)(0), and a K pi spin-zero nonresonant component. We also search for B-0 ->phi(D) over bar (0) decay with the same final state. The analysis is based on a sample of about 384x10(6) B (B) over bar pairs recorded with the BABAR detector. We place upper limits on the branching fractions B(B-0 ->phi K-{*}(1680)(0))< 3.5x10(-6), B(B-0 ->phi K-3({*})(1780)(0))< 2.7x10(-6), B(B-0 ->phi K-4({*})(2045)(0))< 15.3x10(-6), and B(B-0 ->phi(D) over bar (0))< 11.7x10(-6) at 90\% C.L. The nonresonant contribution is consistent with the measurements in the lower invariant mass range.

Search for B-0 ->phi(K+pi(-)) decays with large K+pi(-) invariant mass

BIANCHI, Fabrizio;GAMBA, Diego;
2007-01-01

Abstract

Motivated by the polarization anomaly in the B ->phi(1020)K-{*}(892) decay, we extend our search for other K-{*} final states in the decay B-0 ->phi(1020)K-{*}0 with the K-{*}0 -> K+pi(-) invariant mass above 1.6 GeV. The final states considered include the K-{*}(1680)(0), K-3({*})(1780)(0), K-4({*})(2045)(0), and a K pi spin-zero nonresonant component. We also search for B-0 ->phi(D) over bar (0) decay with the same final state. The analysis is based on a sample of about 384x10(6) B (B) over bar pairs recorded with the BABAR detector. We place upper limits on the branching fractions B(B-0 ->phi K-{*}(1680)(0))< 3.5x10(-6), B(B-0 ->phi K-3({*})(1780)(0))< 2.7x10(-6), B(B-0 ->phi K-4({*})(2045)(0))< 15.3x10(-6), and B(B-0 ->phi(D) over bar (0))< 11.7x10(-6) at 90\% C.L. The nonresonant contribution is consistent with the measurements in the lower invariant mass range.
2007
76
051103
051110
B. Aubert; M. Bona; D. Boutigny; Y. Karyotakis; J. P. Lees; V. Poireau; X. Prudent; V. Tisserand; A. Zghiche; J. Garra Tico; E. Grauges; L. Lopez; A. ...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/42485
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