Constraints on widths of mixed pentaquark multiplets
| dc.creator | Mohta, Vivek | |
| dc.date | 2004-11-18 | |
| dc.date.accessioned | 2026-07-25T19:08:12Z | |
| dc.description | We determine constraints on the partial widths of mixed pentaquark multiplets in the framework of heavy baryon chiral perturbation theory (HB$χ$PT). The partial widths satisfy a GMO-type relation at leading order in HB$χ$PT, for arbitrary mixing. The widths of N(1440), N(1710), and $Θ(1540)$ are not consistent with ideal mixing, $θ_{N} = 35.3^{\circ}$, but are consistent with $θ_{N} \lesssim 25^{\circ}$. Furthermore, there are parameter values in HB$χ$PT that produce such a mixing angle while allowing the identification of the mass spectrum above. As an alternative to non-ideal mixing, we also suggest reasons for giving up on N(1440) as a pure pentaquark state. | |
| dc.description | 12 pages, 4 figures | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0411247 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0411247 | |
| dc.identifier.uri | https://dspace.dare.co.zw/handle/123456789/61838 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Constraints on widths of mixed pentaquark multiplets | |
| dc.type | text |