Title

Two-Body B Meson Decays to η and η′:Observation of B → ηK*

Document Type

Article

Publication Date

1-1-2000

Abstract

In a sample of 19 × 10 produced B mesons, we have observed the decays B → ηK∗ and improved our previous measurements of B → η′K. The branching fractions we measure for these decay modes are B(B → ηK* ) = (26.4 ± 3.3) × 10 , B(B → η K* ) = (13.8 ± 1.6) × 10 , B (B → η′ K ) = (80 ± 7) × 10 , and B (B → η′ K ) = (89 ± 9) × 10 . We have searched with comparable sensitivity for related decays and report upper limits for these branching fractions. © 2000 American Physical Society. 6 + + +9.6 −6 0 0 +5.5 −6 + + +10 −6 0 0 +18 −6 −8.2 −4.6 −9 −16

Publication Name

Physical Review Letters

Volume Number

85

First Page

520

Last Page

524

Issue Number

3

DOI

10.1103/PhysRevLett.85.520

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