Light 1(-+) exotics: molecular resonances
| dc.contributor.author | Llanes Estrada, Felipe José | |
| dc.contributor.author | General, Ignacio J. | |
| dc.contributor.author | Wang, Ping | |
| dc.contributor.author | Cotanch, Stephen R. | |
| dc.date.accessioned | 2023-06-20T10:37:12Z | |
| dc.date.available | 2023-06-20T10:37:12Z | |
| dc.date.issued | 2007-09-30 | |
| dc.description | © 2007 Elsevier B.V. This work was supported in part by grants FPA 2004-02602, 2005-02327, PR27/05-13955-BSCH (Spain) and US DOE DEFG02 97ER41048 and DE-FG02-03ER41260 . | |
| dc.description.abstract | Highlights in the search for nonconventional (non-q.q) meson states are the π1(1400) and π1(1600) exotic candidates. Should they exist, mounting theoretical arguments suggest that they are tetraquark molecular resonances excitable by meson rescattering.We report a new tetraquark calculation within a model field theory approximation to Quantum Chromodynamics in the Coulomb gauge supporting this conjecture. We also strengthen this claim by consistentlycontrasting results with exotic state predictions for hybrid (q . qg) mesons within the same theoretical framework. Our findings confirm that molecular like configurations involving two color singlets (a resonance, not a bound state) are clearly favored over hybrid or color-exotic tetraquark meson (q . qq.q atoms) formation. Finally, to assist needed further experimental searches we document a useful off-plane correlator for establishing the structure of these exotic systems along with similar, but anticipated much narrower, states that should exist in the charmonium and bottomonium spectra. | |
| dc.description.department | Depto. de Física Teórica | |
| dc.description.faculty | Fac. de Ciencias Físicas | |
| dc.description.refereed | TRUE | |
| dc.description.sponsorship | US DOE | |
| dc.description.sponsorship | BSCH (Spain) | |
| dc.description.status | pub | |
| dc.eprint.id | https://eprints.ucm.es/id/eprint/22949 | |
| dc.identifier.doi | 10.1016/j.physletb.2007.08.015 | |
| dc.identifier.issn | 0370-2693 | |
| dc.identifier.officialurl | http://dx.doi.org/10.1016/j.physletb.2007.08.015 | |
| dc.identifier.relatedurl | http://arxiv.org/abs/0707.1286 | |
| dc.identifier.relatedurl | http://www.sciencedirect.com | |
| dc.identifier.uri | https://hdl.handle.net/20.500.14352/50793 | |
| dc.journal.title | Physics Letters B | |
| dc.language.iso | eng | |
| dc.page.final | 223 | |
| dc.page.initial | 216 | |
| dc.publisher | Elsevier Science BV | |
| dc.relation.projectID | FPA 2004-02602 | |
| dc.relation.projectID | 2005-02327 | |
| dc.relation.projectID | PR27/05-13955-BSCH (Spain) | |
| dc.relation.projectID | DE-FG02-03ER41260 | |
| dc.relation.projectID | DE-FG02-97ER41048 | |
| dc.rights.accessRights | open access | |
| dc.subject.cdu | 53 | |
| dc.subject.keyword | Q2QBar2 Mesons | |
| dc.subject.keyword | Hybrid | |
| dc.subject.keyword | Model | |
| dc.subject.keyword | Hadrons | |
| dc.subject.ucm | Física (Física) | |
| dc.subject.unesco | 22 Física | |
| dc.title | Light 1(-+) exotics: molecular resonances | |
| dc.type | journal article | |
| dc.volume.number | 653 | |
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