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http://hdl.handle.net/2445/131416
Title: | Searches for B0 decays to ηK0, ηη, η′η′, ηϕ, and η′ϕ |
Author: | Graugés Pous, Eugeni BABAR Collaboration |
Keywords: | Física de partícules Experiments Particle physics Experiments |
Issue Date: | 20-Sep-2006 |
Publisher: | American Physical Society |
Abstract: | We search for B 0 meson decays into two-body combinations of K 0 , η , η ′ , and ϕ mesons in 324 × 10 6 B ¯¯¯ B pairs collected with the BABAR detector at the PEP-II asymmetric-energy e + e − collider at SLAC. We measure the following branching fractions (upper limits at 90% confidence level) in units of 10 − 6 : B ( B 0 → η K 0 ) = 1.8 + 0.7 − 0.6 ± 0.1 ( < 2.9 ) , B ( B 0 → η η ) = 1.1 + 0.5 − 0.4 ± 0.1 ( < 1.8 ) , B ( B 0 → η ϕ ) = 0.1 ± 0.2 ± 0.1 ( < 0.6 ) , B ( B 0 → η ′ ϕ ) = 0.2 + 0.4 − 0.3 ± 0.1 ( < 1.0 ) , and B ( B 0 → η ′ η ′ ) = 1.0 + 0.8 − 0.6 ± 0.1 ( < 2.4 ) , where the first error is statistical and the second systematic. |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.74.051106 |
It is part of: | Physical Review D, 2006, vol. 74, num. 5, p. 051106(R) |
URI: | http://hdl.handle.net/2445/131416 |
Related resource: | https://doi.org/10.1103/PhysRevD.74.051106 |
ISSN: | 1550-7998 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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