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Two-body B meson decays to eta and eta('): observation of B --> eta K* |
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| Authors: | Richichi S J Severini H Skubic P Undrus A Chen S Fast J Hinson J W Lee J Menon N Miller D H Shibata E I Shipsey I P Pavlunin V Cronin-Hennessey D Kwon Y Lyon A L Thorndike E H Jessop C P Marsiske H Perl M L Savinov V Ugolini D Zhou X Coan T E Fadeyev 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 Zhou G J |
| Affiliation: | University of Oklahoma, Norman, Oklahoma 73019, USA. |
| Abstract: | In a sample of 19 x 10(6) produced B mesons, we have observed the decays B-->eta K(*) and improved our previous measurements of B-->eta'K. The branching fractions we measure for these decay modes are B(B+-->eta K(*+)) = (26.4(+9.6)(-8.2)+/-3.3)x10(-6), B(B(0)-->eta K(*0)) = (13.8(+5.5)(-4.6)+/-1.6)x10(-6), B(B(+)-->eta'K(+) = (80(+10)(-9)+/-7)x10(-6), and B(B(0)-->eta'K0) = (89(+18)(-16)+/-9)x10(-6). We have searched with comparable sensitivity for related decays and report upper limits for these branching fractions. |
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