dc.contributor.author | Alexandrou, Constantia | en |
dc.contributor.author | Daldrop, J. O. | en |
dc.contributor.author | Brida, M. D. | en |
dc.contributor.author | Gravina, M. | en |
dc.contributor.author | Scorzato, L. | en |
dc.contributor.author | Urbach, C. | en |
dc.contributor.author | Wagner, M. | en |
dc.creator | Alexandrou, Constantia | en |
dc.creator | Daldrop, J. O. | en |
dc.creator | Brida, M. D. | en |
dc.creator | Gravina, M. | en |
dc.creator | Scorzato, L. | en |
dc.creator | Urbach, C. | en |
dc.creator | Wagner, M. | en |
dc.date.accessioned | 2019-12-02T15:28:15Z | |
dc.date.available | 2019-12-02T15:28:15Z | |
dc.date.issued | 2013 | |
dc.identifier.issn | 1126-6708 | |
dc.identifier.uri | http://gnosis.library.ucy.ac.cy/handle/7/58391 | |
dc.description.abstract | We carry out an exploratory study of the isospin one a0(980) and the isospin one-half κ scalar mesons using Nf = 2 + 1 + 1 Wilson twisted mass fermions at one lattice spacing. The valence strange quark is included as an Osterwalder-Seiler fermion with mass tuned so that the kaon mass matches the corresponding mass in the unitary Nf = 2 + 1 + 1 theory. We investigate the internal structure of these mesons by using a basis of four-quark interpolating fields. We construct diquark-diquark and molecular-type interpolating fields and analyse the resulting correlation matrices keeping only connected contributions. For both channels, the low-lying spectrum is found to be consistent with two-particle scattering states. Therefore, our analysis shows no evidence for an additional state that can be interpreted as either a tetraquark or a tightly-bound molecular state. © SISSA 2013. | en |
dc.source | Journal of High Energy Physics | en |
dc.source.uri | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84928233000&doi=10.1007%2fJHEP04%282013%29137&partnerID=40&md5=ee37ad117aff7a0b9e83afbc9c2f6e5d | |
dc.subject | Lattice QCD | en |
dc.subject | Lattice gauge field theories | en |
dc.subject | QCD | en |
dc.title | Lattice investigation of the scalar mesons a0(980) and κ using four-quark operators | en |
dc.type | info:eu-repo/semantics/article | |
dc.identifier.doi | 10.1007/JHEP04(2013)137 | |
dc.description.volume | 2013 | |
dc.description.issue | 4 | |
dc.description.startingpage | 1 | |
dc.description.endingpage | 23 | |
dc.author.faculty | Σχολή Θετικών και Εφαρμοσμένων Επιστημών / Faculty of Pure and Applied Sciences | |
dc.author.department | Τμήμα Φυσικής / Department of Physics | |
dc.type.uhtype | Article | en |
dc.description.notes | <p>Cited By :3</p> | en |
dc.source.abbreviation | J.High Energy Phys. | en |
dc.contributor.orcid | Alexandrou, Constantia [0000-0001-9136-3621] | |
dc.gnosis.orcid | 0000-0001-9136-3621 | |