Please use this identifier to cite or link to this item:
https://hdl.handle.net/2445/131413
Title: | Search for the decay of a B0 or ¯B0 meson to ¯K*0K0 or K*0¯K0 |
Author: | Graugés Pous, Eugeni BABAR Collaboration |
Keywords: | Física de partícules Experiments Mesons (Física nuclear) Particle physics Experiments Mesons (Nuclear physics) |
Issue Date: | 23-Oct-2006 |
Publisher: | American Physical Society |
Abstract: | We present a search for the decay of a B 0 or ¯¯¯ B 0 meson to a ¯¯¯¯ K * 0 K 0 or K * 0 ¯¯¯¯ K 0 final state, using a sample of approximately 232 × 10 6 B ¯¯¯ B events collected with the BABAR detector at the PEP-II asymmetric energy e + e − collider at SLAC. The measured branching fraction is B ( B 0 → ¯¯¯¯ K * 0 K 0 ) + B ( B 0 → K * 0 ¯¯¯¯ K 0 ) = ( 0.2 + 0.9 + 0.1 − 0.8 − 0.3 ) × 10 − 6 . We obtain the following upper limit for the branching fraction at 90% confidence level: B ( B 0 → ¯¯¯¯ K * 0 K 0 ) + B ( B 0 → K * 0 ¯¯¯¯ K 0 ) < 1.9 × 10 − 6 . We use our result to constrain the standard model prediction for the deviation of the C P asymmetry in B 0 → ϕ K 0 from sin 2 β . |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.74.072008 |
It is part of: | Physical Review D, 2006, vol. 74, num. 7, p. 072008 |
URI: | https://hdl.handle.net/2445/131413 |
Related resource: | https://doi.org/10.1103/PhysRevD.74.072008 |
ISSN: | 1550-7998 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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