Light-Front Approach for Pentaquark Strong Decays
| dc.creator | Cheng, Hai-Yang | |
| dc.creator | Chua, Chun-Khiang | |
| dc.date | 2004-06-03 | |
| dc.date.accessioned | 2026-07-07T10:49:06Z | |
| dc.date.available | 2026-07-07T10:49:06Z | |
| dc.description | Assuming the two diquark structure for the pentaquark state as advocated in the Jaffe-Wilczek model, we study the strong decays of light and heavy parity-even pentaquark states using the light-front quark model in conjunction with the spectator approximation. The narrowness of the Theta width is ascribed to the p-wave configuration of the diquark pair. Taking the Theta width as a benchmark, we estimate the rates of the strong decays Xi_{3/2}-- to Xi- pi-, Sigma- K-, Sigma_{5c}0 to D_s- p, D_{s0}*- p and Xi_{5c}0 to D_s- Sigma+, D_{s0}^{*-} Sigma+ with Sigma_{5c} Xi_{5c} being antisextet charmed pentaquarks and D_{s0}* a scalar strange charmed meson. The ratio of Gamma(P_c to Baryon D_{s0}*)/Gamma(P_c to Baryon D_s) is very useful for verifying the parity of the antisextet charmed pentaquark P_c. It is expected to be of order unity for an even parity P_c and much less than one for an odd parity pentaquark. | |
| dc.description | 24 pages, 2 figures | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0406036 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0406036 | |
| dc.identifier | JHEP0411:072,2004 | |
| dc.identifier | doi:10.1088/1126-6708/2004/11/072 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/184109 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Light-Front Approach for Pentaquark Strong Decays | |
| dc.type | text |