The narrow pentaquark
| dc.creator | Diakonov, Dmitri | |
| dc.date | 2006-10-13 | |
| dc.date.accessioned | 2026-07-07T10:25:42Z | |
| dc.date.available | 2026-07-07T10:25:42Z | |
| dc.description | The experimental status of the pentaquark searches is briefly reviewed. Recent null results by the CLAS collaboration are commented, and new strong evidence of a very narrow Theta+ resonance by the DIANA collaboration is presented. On the theory side, I revisit the argument against the existence of the pentaquark -- that of Callan and Klebanov -- and show that actually a strong resonance is predicted in that approach, however its width is grossly overestimated. A recent calculation gives 2 MeV for the pentaquark width, and this number is probably still an upper bound. | |
| dc.description | Write-up of the talks at Quarks-2006 (St. Petersburg, May 19-26, 2006) and at Quark Confinement and Hadron Spectrum VII (Ponta Delgada, Sep 2-7, 2006), 10 pp | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0610166 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0610166 | |
| dc.identifier | AIPConf.Proc.892:258-261,2007 | |
| dc.identifier | doi:10.1063/1.2714388 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/176630 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | The narrow pentaquark | |
| dc.type | text |