Observation of a narrow charmonium-like state in exclusive B+ -> K+ pi+pi- J/psi decays
| dc.creator | The Belle Collaboration | |
| dc.creator | Choi, S. -K. | |
| dc.creator | Olsen, S. L. | |
| dc.date | 2003-09-08 | |
| dc.date | 2003-10-31 | |
| dc.date.accessioned | 2026-07-07T12:02:05Z | |
| dc.date.available | 2026-07-07T12:02:05Z | |
| dc.description | We report the observation of a narrow charmonium-like state produced in the exclusive decay process B+ -> K+ pi+pi- J/psi. This state, which decays into pi+pi- J/psi, has a mass of 3872.0+-0.6(stat)+-0.5(syst) MeV, a value that is very near the M_D + M_D* mass threshold. The results are based on an analysis of 152M B-Bbar events collected at the Upsilon(4S) resonance in the Belle detector at the KEKB collider. The statistical significance of the signal is in excess of 10 sigma. | |
| dc.description | 10 pages 4 figures, submitted to Physical Review Letters | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0309032 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0309032 | |
| dc.identifier | Phys.Rev.Lett.91:262001,2003 | |
| dc.identifier | doi:10.1103/PhysRevLett.91.262001 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/207320 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Observation of a narrow charmonium-like state in exclusive B+ -> K+ pi+pi- J/psi decays | |
| dc.type | text |