Pseudoscalar-meson-octet-baryon coupling constants in two-flavor lattice QCD
dc.contributor.author | Erkol, Güray | |
dc.contributor.author | Oka, M. | |
dc.contributor.author | Takahashi, T. T. | |
dc.date.accessioned | 2010-08-24T13:18:25Z | |
dc.date.available | 2010-08-24T13:18:25Z | |
dc.date.issued | 2009-04-01 | |
dc.identifier.uri | http://hdl.handle.net/10679/88 | |
dc.identifier.uri | http://journals.aps.org/prd/abstract/10.1103/PhysRevD.79.074509 | |
dc.description.abstract | We evaluate the πΝΝ, π∑∑, πΛ∑, KΛN and K∑N coupling constants and the corresponding monopole masses in lattice QCD with two flavors of dynamical quarks. The parameters representing the SU(3)-flavor symmetry are computed at the point where the three quark flavors are degenerate at the physical s-quark mass. In particular, we obtain α ≡ F/(F+D) = 0.395(6). The quark-mass dependences of the coupling constants are obtained by changing the u- and the d-quark masses. We find that the SU(3)-flavor parameters have weak quark-mass dependence and thus the SU(3)-flavor symmetry is brokenby only a few percent at each quark-mass point we consider. | en_US |
dc.language.iso | eng | en_US |
dc.publisher | American Physical Society | en_US |
dc.relation.ispartof | Physical Review D | |
dc.rights | openAccess | |
dc.title | Pseudoscalar-meson-octet-baryon coupling constants in two-flavor lattice QCD | en_US |
dc.type | Article | en_US |
dc.description.version | publisher version | |
dc.peerreviewed | yes | en_US |
dc.publicationstatus | published | en_US |
dc.contributor.department | Özyeğin University | |
dc.contributor.authorID | (ORCID 0000-0002-7814-7681 & YÖK ID 44764) Erkol, Güray | |
dc.contributor.ozuauthor | Erkol, Güray | |
dc.identifier.volume | 79 | |
dc.identifier.issue | 7 | |
dc.identifier.startpage | 074509-1 | |
dc.identifier.endpage | 074509-6 | |
dc.identifier.wos | WOS:000266408300063 | |
dc.identifier.doi | 10.1103/PhysRevD.79.074509 | |
dc.subject.keywords | Meson-baryon coupling constant | en_US |
dc.subject.keywords | Hyperon axial charge | en_US |
dc.subject.keywords | Lattice QCD | en_US |
dc.identifier.scopus | SCOPUS:2-s2.0-66349092449 | |
dc.contributor.authorMale | 1 | |
dc.relation.publicationcategory | Article - International Refereed Journal - Institutional Academic Staff |
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