Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/150580
Title: | Search for Invisible Decays of the Υ(1S) |
Author: | Garra Ticó, Jordi Graugés Pous, Eugeni BABAR Collaboration |
Keywords: | Física de partícules Experiments Particle physics Experiments |
Issue Date: | 16-Dec-2009 |
Publisher: | American Physical Society |
Abstract: | We search for invisible decays of the Υ ( 1 S ) meson using a sample of 91.4 × 10 6 Υ ( 3 S ) mesons collected at the BABAR/PEP-II B factory. We select events containing the decay Υ ( 3 S ) → π + π − Υ ( 1 S ) and search for evidence of an undetectable Υ ( 1 S ) decay recoiling against the dipion system. We set an upper limit on the branching fraction B ( Υ ( 1 S ) → invisible ) < 3.0 × 10 − 4 at the 90% confidence level. |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevLett.103.251801 |
It is part of: | Physical Review Letters, 2009, vol. 103, num. 25, p. 251801 |
URI: | http://hdl.handle.net/2445/150580 |
Related resource: | https://doi.org/10.1103/PhysRevLett.103.251801 |
ISSN: | 0031-9007 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
601926.pdf | 209.76 kB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.