D0 Collaboration, The and Bertram, I. A. and Borissov, Guennadi and Ratoff, Peter N. and Sopczak, Andre and Davies, B. and Doidge, M. (2004) Observation and properties of the X(3872) decaying to J/psi pi+ pi- in p anti-p collitions at s**(1/2) = 1.96-TeV. Physical Review Letters, 93 (16). p. 162002. ISSN 1079-7114
Full text not available from this repository.Abstract
We report the observation of the X(3872) in the J/ψπ+π- channel, with J/ψ decaying to μ+μ-, in pp̅ collisions at sqrt[s]=1.96 TeV. Using approximately 230 pb-1 of data collected with the Run II D0 detector, we observe 522±100 X(3872) candidates. The mass difference between the X(3872) state and the J/ψ is measured to be 774.9±3.1(stat)±3.0(syst) MeV/c2. We have investigated the production and decay characteristics of the X(3872) and find them to be similar to those of the ψ(2S) state.
| Item Type: | Article |
|---|---|
| Journal or Publication Title: | Physical Review Letters |
| Subjects: | Q Science > QC Physics |
| Departments: | Faculty of Science and Technology > Physics |
| ID Code: | 23948 |
| Deposited By: | ep_ss_importer |
| Deposited On: | 24 Feb 2009 14:48 |
| Refereed?: | Yes |
| Published?: | Published |
| Last Modified: | 26 Jul 2012 16:18 |
| Identification Number: | |
| URI: | http://eprints.lancs.ac.uk/id/eprint/23948 |
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