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dc.contributor.authorAlexandrou, Cen
dc.contributor.authorCarbonell, Jen
dc.contributor.authorChristaras, Den
dc.contributor.authorDrach, Ven
dc.contributor.authorGravina, Men
dc.contributor.authorPapinutto, Men
dc.date.accessioned2018-07-25T15:39:29Z
dc.date.available2018-07-25T15:39:29Z
dc.identifier.urihttp://hdl.handle.net/10026.1/11918
dc.description19 pages, 18 Figures. Typos corrected, reference added, version to appear in Phys. Rev. D. arXiv admin note: text overlap with arXiv:0910.2419en
dc.description.abstract

The masses of the low-lying strange and charm baryons are evaluated using two degenerate flavors of twisted mass sea quarks for pion masses in the range of about 260 MeV to 450 MeV. The strange and charm valence quark masses are tuned to reproduce the mass of the kaon and D-meson at the physical point. The tree-level Symanzik improved gauge action is employed. We use three values of the lattice spacing, corresponding to $\beta=3.9$, $\beta=4.05$ and $\beta=4.2$ with $r_0/a=5.22(2)$, $r_0/a=6.61(3)$ and $r_0/a=8.31(5)$ respectively. %spacings $a=0.0855(5)$ and $a=0.0667(3)$ determined from the pion decay constant. We examine the dependence of the strange and charm baryons on the lattice spacing and strange and charm quark masses. The pion mass dependence is studied and physical results are obtained using heavy baryon chiral perturbation theory to extrapolate to the physical point.

en
dc.language.isoenen
dc.subjecthep-laten
dc.subjecthep-laten
dc.subjecthep-phen
dc.subjectnucl-then
dc.titleStrange and charm baryon masses with two flavors of dynamical twisted mass fermionsen
dc.typeJournal Article
plymouth.author-urlhttp://arxiv.org/abs/1205.6856v2en
plymouth.publisher-urlhttp://dx.doi.org/10.1103/PhysRevD.86.114501en
dc.identifier.doi10.1103/PhysRevD.86.114501en
plymouth.organisational-group/Plymouth
plymouth.organisational-group/Plymouth/00 Groups by role
plymouth.organisational-group/Plymouth/00 Groups by role/Academics
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering/School of Computing, Electronics and Mathematics
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA/UoA10 Mathematical Sciences
dc.rights.embargoperiodNo embargoen
rioxxterms.versionofrecord10.1103/PhysRevD.86.114501en
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.typeJournal Article/Reviewen


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