Observation of B --> K(+/-) pi(0) and B --> (K)0 pi(0), and evidence for B --> pi(+)pi(-)

Observation of B --> K(+/-) pi(0) and B --> (K)0 pi(0), and evidence for B --> pi(+)pi(-)

We have studied charmless hadronic decays of B mesons into two-body final states with kaons and pions and observe three new processes with the following branching fractions: beta(B-->pi(+)pi(-)) = (4.3(+1. 6)(-1.4)+/-0.5)x10(-6), beta(B-->K(0)pi(0)) = (14.6(+5.9+2.4)(-5.1-3. 3))x10(-6), and be...

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Veröffentlicht in:Physical review letters 2000-07, Vol.85 (3), p.515-519
Hauptverfasser: Cronin-Hennessey, D, Kwon, Y, Lyon, A L, Thorndike, E H, Jessop, C P, Mariske, H, Perl, M L, Savinov, V, Ugolini, D, Zhou, X, Coan, T E, Fadeyez, V, Maravin, Y, Narsky, I, Stroynowski, R, Ye, J, Wlodek, T, Artuso, M, Ayad, R, Boulahouache, C, Bukin, K, Dambasuren, E, Karamnov, S, Kopp, S, Majumder, G, Moneti, G C, Mountain, R, Schuh, S, Skwarnicki, T, Stone, S, Viehauser, G, Wang, J C, Wolf, A, Wu, J, Csorna, S E, Danko, I, McLean, K W, Márka, S, Xu, Z, Godang, R, Kinoshita, K, Lai, I C, Schrenk, S, Bonvicini, G, Cinabro, D, Perera, L P, Zhou, G J, Eigen, G, Lipeles, E, Sharma, V
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Sprache:eng
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Zusammenfassung:We have studied charmless hadronic decays of B mesons into two-body final states with kaons and pions and observe three new processes with the following branching fractions: beta(B-->pi(+)pi(-)) = (4.3(+1. 6)(-1.4)+/-0.5)x10(-6), beta(B-->K(0)pi(0)) = (14.6(+5.9+2.4)(-5.1-3. 3))x10(-6), and beta(B-->K(+)/-pi(0)) = (11.6(+3.0+1.4)(-2.7-1.3))x10(-6). We also update our previous measurements for the decays B-->K(+)/-pi(-/+) and B+/--->K(0)pi(+/-).
ISSN:0031-9007