Many-body Coulomb gauge exotic and charmed hybrids
| dc.contributor.author | Llanes Estrada, Felipe José | |
| dc.contributor.author | Cotanch, Stephen R | |
| dc.date.accessioned | 2023-06-20T18:52:39Z | |
| dc.date.available | 2023-06-20T18:52:39Z | |
| dc.date.issued | 2001-04-05 | |
| dc.description | © 2001 Published by Elsevier Science B.V. We thank NERSC for providing Cray J-90 CPU time. F.L.E. acknowledges SURA-Jefferson Lab for a graduate fellowship. This work was partially supported by grantsDOE DE-FG02 97ER41048 and NSF INT-9807009 | |
| dc.description.abstract | Utilizing an effective QCD Coulomb gauge Hamiltonian with linear confinement specified by lattice, we report a relativistic many-body calculation for the light exotic and charmed hybrid mesons. The Hamiltonian successfully describes both quark and gluon sectors, with vacuum and quasiparticle properties generated by a BCS transformation and more elaborate TDA and RPA diagonalizations for the meson (q¯q ) and glueball (gg) masses. Hybrids entail a computationally intense relativistic three quasiparticle (q ¯ qg) calculation with the 9-dimensional Hamiltonian matrix elements evaluated variationally by Monte Carlo techniques. Our new TDA (RPA) spectrum for the nonexotic 1−− charmed (c ¯ c and c ¯cg) system provides an explanation for the overpopulation of the observed J/ψ states. For the important 1−+ light exotic channel we obtain hybrid masses above 2 GeV, in broad agreement with lattice and flux tube models, indicating that the recently observed resonances at 1.4 and 1.6 GeV are of different, perhaps four quark, structure. | |
| dc.description.department | Depto. de Física Teórica | |
| dc.description.faculty | Fac. de Ciencias Físicas | |
| dc.description.refereed | TRUE | |
| dc.description.sponsorship | DOE | |
| dc.description.sponsorship | NSF | |
| dc.description.status | pub | |
| dc.eprint.id | https://eprints.ucm.es/id/eprint/23493 | |
| dc.identifier.doi | 10.1016/S0370-2693(01)00290-8 | |
| dc.identifier.issn | 0370-2693 | |
| dc.identifier.officialurl | http://dx.doi.org/10.1016/S0370-2693(01)00290-8 | |
| dc.identifier.relatedurl | http://arxiv.org/abs/hep-ph/0008337 | |
| dc.identifier.relatedurl | http://www.sciencedirect.com | |
| dc.identifier.uri | https://hdl.handle.net/20.500.14352/58834 | |
| dc.issue.number | feb | |
| dc.journal.title | Physics Letters B | |
| dc.language.iso | eng | |
| dc.page.final | 20 | |
| dc.page.initial | 15 | |
| dc.publisher | Elsevier Science Bv | |
| dc.relation.projectID | DOE DE-FG02-97ER41048 | |
| dc.relation.projectID | NSF INT-9807009 | |
| dc.rights.accessRights | open access | |
| dc.subject.cdu | 53 | |
| dc.subject.keyword | Flux-Tube Model | |
| dc.subject.keyword | Heavy Hybrids | |
| dc.subject.keyword | Constituent Gluons | |
| dc.subject.keyword | 18 Gev/C | |
| dc.subject.keyword | Mesons | |
| dc.subject.keyword | Qcd | |
| dc.subject.keyword | Hadrons | |
| dc.subject.ucm | Física (Física) | |
| dc.subject.unesco | 22 Física | |
| dc.title | Many-body Coulomb gauge exotic and charmed hybrids | |
| dc.type | journal article | |
| dc.volume.number | 504 | |
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| dspace.entity.type | Publication | |
| relation.isAuthorOfPublication | 6290fe55-04e6-4532-91e6-1df735bdbdca | |
| relation.isAuthorOfPublication.latestForDiscovery | 6290fe55-04e6-4532-91e6-1df735bdbdca |
