Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/140472
Title: | Measurements of the Absolute Branching Fractions of B±→K±Xc¯c |
Author: | Graugés Pous, Eugeni BABAR Collaboration |
Keywords: | Física de partícules Experiments Particle physics Experiments |
Issue Date: | 8-Feb-2006 |
Publisher: | American Physical Society |
Abstract: | We study the two-body decays of B ± mesons to K ± and a charmonium state X c ¯ c in a sample of 210.5 fb − 1 of data from the BABAR experiment. We perform measurements of absolute branching fractions B ( B ± → K ± X c ¯ c ) using a missing mass technique, and report several new or improved results. In particular, the upper limit B ( B ± → K ± X ( 3872 ) ) < 3.2 × 10 − 4 at 90% C.L. and the inferred lower limit B ( X ( 3872 ) → J / ψ π + π − ) > 4.2 % will help in understanding the nature of the recently discovered X ( 3872 ) . |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevLett.96.052002 |
It is part of: | Physical Review Letters, 2006, vol. 96, num. 5, p. 052002 |
URI: | http://hdl.handle.net/2445/140472 |
Related resource: | https://doi.org/10.1103/PhysRevLett.96.052002 |
ISSN: | 0031-9007 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
Files in This Item:
File | Description | Size | Format | |
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542599.pdf | 176.25 kB | Adobe PDF | View/Open |
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