APS » PROLA » Phys. Rev. Lett. » Volume 80 » Issue 17

Phys. Rev. Lett. 80, 3710 - 3714 (1998)

Two-Body B Meson Decays to η and η′: Observation of B→η′K
Download: PDF (211 kB) or Buy this Article (Use Article Pack) Export: BibTeX or EndNote (RIS)

B. H. Behrens et al. (CLEO Collaboration)
Show All Authors/Affiliations

Received 5 January 1998

In a sample of 6.6×106 produced B mesons we have observed decays B→η′K, with branching fractions B(B+→η′K+)  =  (6.5-1.4+1.5±0.9)×10-5 and B(B0→η′K0)  =  (4.7-2.0+2.7±0.9)×10-5. We have searched with comparable sensitivity for 17 related decays to final states containing an η or η′ meson accompanied by a single particle or low-lying resonance. Our upper limits for these constrain theoretical interpretations of the B→η′K signal.


©1998 The American Physical Society

URL: http://link.aps.org/abstract/PRL/v80/p3710
DOI: 10.1103/PhysRevLett.80.3710
PACS: 13.25.Hw, 14.40.Nd

* Permanent address: University of Texas, Austin, TX 78712.
† Permanent address: Lawrence Livermore National Laboratory, Livermore, CA 94551.
‡ Permanent address: BINP, RU-630090 Novosibirsk, Russia.
§ Permanent address: Yonsei University, Seoul 120-749, Korea.
** Permanent address: Brookhaven National Laboratory, Upton, NY 11973.

[ Abstract  |  Previous article  |  Next article  |  Issue 17 ]