Are the anti-charmed and bottomed pentaquarks molecular heptaquarks?
| dc.creator | Bicudo, P. | |
| dc.date | 2004-03-30 | |
| dc.date.accessioned | 2026-07-07T11:58:26Z | |
| dc.date.available | 2026-07-07T11:58:26Z | |
| dc.description | I study the charmed $uudd\bar c$ resonance D*p (3100) very recently discovered by the H1 collaboration at Hera. An anticharmed resonance was already predicted, in a recent publication mostly dedicated to the S=1 resonance Theta+(1540). To confirm these recent predictions, I apply the same standard quark model with a quark-antiquark annihilation constrained by chiral symmetry. I find that repulsion excludes the D*p (3100) as a $uudd\bar c$ s-wave pentaquark. I explore the D*p (3100) as a heptaquark, equivalent to a N-pi-D* linear molecule, with positive parity and total isospin I=0. I find that the N-D repulsion is cancelled by the attraction existing in the N-pi and pi-D channels. In our framework this state is harder to bind than the Theta+ described by a k-pi-N borromean bound-state, a lower binding energy is expected in agreement with the H1 observation. Multiquark molecules N-pi-D, N-pi-B* and N-pi-B are also predicted. | |
| dc.description | 5 pages, 2 figures, RevTeX | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0403295 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0403295 | |
| dc.identifier | Phys.Rev.D71:011501,2005 | |
| dc.identifier | doi:10.1103/PhysRevD.71.011501 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/206224 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Are the anti-charmed and bottomed pentaquarks molecular heptaquarks? | |
| dc.type | text |