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http://hdl.handle.net/2445/131492
Title: | Search for B→K∗ν¯ν decays |
Author: | Garra Ticó, Jordi Graugés Pous, Eugeni BABAR Collaboration |
Keywords: | Física de partícules Experiments Particle physics Experiments |
Issue Date: | 30-Oct-2008 |
Publisher: | American Physical Society |
Abstract: | We present a search for the decays B → K ∗ ν ¯ ν using 454 × 10 6 B ¯¯¯ B pairs collected at the Υ ( 4 S ) resonance with the BABAR detector at the SLAC PEP-II B -Factory. We first select an event sample where one B is reconstructed in a semileptonic or hadronic mode with one charmed meson. The remaining particles in the event are then examined to search for a B → K ∗ ν ¯ ν decay. The charged K ∗ is reconstructed as K * + → K 0 S π + or K * + → K + π 0 ; the neutral K ∗ is identified in K * 0 → K + π − mode. We establish upper limits at 90% confidence level of B ( B + → K * + ν ¯ ν ) < 8 × 10 − 5 , B ( B 0 → K * 0 ν ¯ ν ) < 12 × 10 − 5 , and B ( B → K ∗ ν ¯ ν ) < 8 × 10 − 5 . |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.78.072007 |
It is part of: | Physical Review D, 2008, vol. 78, num. 7, p. 072007 |
URI: | http://hdl.handle.net/2445/131492 |
Related resource: | https://doi.org/10.1103/PhysRevD.78.072007 |
ISSN: | 1550-7998 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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