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http://hdl.handle.net/2445/131455
Title: | Study of the exclusive initial-state-radiation production of the D¯¯¯D system |
Author: | Garra Ticó, Jordi Graugés Pous, Eugeni BABAR Collaboration |
Keywords: | Física de partícules Experiments Particle physics Experiments |
Issue Date: | 28-Dec-2007 |
Publisher: | American Physical Society |
Abstract: | A search for charmonium and other new states is performed in a study of exclusive initial-state-radiation production of D ¯¯¯ D events from electron-positron annihilations at a center-of-mass energy of 10.58 GeV. The data sample corresponds to an integrated luminosity of 384 fb − 1 and was recorded by the BABAR experiment at the PEP-II storage ring. The D ¯¯¯ D mass spectrum shows clear evidence of the ψ ( 3770 ) plus other structures near 3.9, 4.1, and 4.4 GeV / c 2 . No evidence for Y ( 4260 ) → D ¯¯¯ D is observed, leading to an upper limit of B ( Y ( 4260 ) → D ¯¯¯ D ) / B ( Y ( 4260 ) → J / ψ π + π − ) < 1.0 at 90% confidence level. |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.76.111105 |
It is part of: | Physical Review D, 2007, vol. 76, num. 11, p. 111105 |
URI: | http://hdl.handle.net/2445/131455 |
Related resource: | https://doi.org/10.1103/PhysRevD.76.111105 |
ISSN: | 1550-7998 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
Files in This Item:
File | Description | Size | Format | |
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558211.pdf | 479.05 kB | Adobe PDF | View/Open |
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