Observation and Properties of the X(3872) Decaying to J/ψπ+π− in p¯p Collisions at √s = 1.96 TeV
| dc.contributor.author | Abazov, V. M. | |
| dc.contributor.author | Luo, C. | |
| dc.contributor.author | Lynker, Monika | |
| dc.date.accessioned | 2021-04-14T18:32:14Z | |
| dc.date.available | 2021-04-14T18:32:14Z | |
| dc.date.issued | 2004-09 | |
| dc.description.abstract | We report the observation of the X(3872) in the J/psi pi+pi- channel, with J/psi decaying to mu+mu- in p-p(bar) 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/psi is measured to be 774.9 +/- 3.1 (stat.) +/- 3.0 (syst.) MeV/c^2. We have investigated the production and decay characteristics of the X(3872), and find them to be similar to those of the psi(2S) state. | |
| dc.format.extent | 8 pages | |
| dc.format.mimetype | ||
| dc.identifier.uri | https://hdl.handle.net/2022/26354 | |
| dc.language.iso | en | |
| dc.publisher | American Physical Society | |
| dc.subject.lcsh | Particles (Nuclear physics) | |
| dc.title | Observation and Properties of the X(3872) Decaying to J/ψπ+π− in p¯p Collisions at √s = 1.96 TeV | |
| dc.type | Article |
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