Two-body B meson decays to eta and eta('): observation of B --> eta K*

S J Richichi; H Severini; P Skubic; A Undrus; S Chen; J Fast; J W Hinson; J Lee; N Menon; D H Miller; E I Shibata; I P Shipsey; V Pavlunin; D Cronin-Hennessey; Y Kwon; A L Lyon; E H Thorndike; C P Jessop; H Marsiske; M L Perl; V Savinov; D Ugolini; X Zhou; T E Coan; V Fadeyev; Y Maravin; I Narsky; R Stroynowski; J Ye; T Wlodek; M Artuso; R Ayad; C Boulahouache; K Bukin; E Dambasuren; S Karamnov; S Kopp; G Majumder; G C Moneti; R Mountain; S Schuh; T Skwarnicki; S Stone; G Viehauser; J C Wang; A Wolf; J Wu; S E Csorna; I Danko; G J Zhou

doi:10.1103/PhysRevLett.85.520

Two-body B meson decays to eta and eta('): observation of B --> eta K*

Phys Rev Lett. 2000 Jul 17;85(3):520-4. doi: 10.1103/PhysRevLett.85.520.

Affiliation

¹ University of Oklahoma, Norman, Oklahoma 73019, USA.

PMID: 10991330
DOI: 10.1103/PhysRevLett.85.520

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.