Journal
PHYSICAL REVIEW D
Volume 96, Issue 3, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.96.034511
Keywords
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Funding
- European Union's Horizon (EU) research and innovation programme [642069]
- GPUCW [TPiE/PiLambdaHPO/0311(BIE)/09]
- European Regional Development Fund
- Republic of Cyprus through the Research Promotion Foundation
- Swiss Supercomputing Center CSCS [s540, s625]
- Cyprus Institute on the Cy-Tera machine [lspro113s1, NEA gammaPiODeltaOMH/SigmaTPATH/0308/31]
- JURECA at Julich Supercomputing Centre [ecy00]
- Marie Curie Actions (MSCA) [642069] Funding Source: Marie Curie Actions (MSCA)
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The masses of the low-lying baryons are evaluated using an ensemble with two degenerate light twisted mass clover-improved quarks with mass tuned to reproduce the physical pion mass. The Iwasaki improved gluonic action is employed. The coupling constant value corresponds to a lattice spacing of a = 0.0938(3)(2) fm, determined from the nucleon mass. We find that the clover term supresses isospin symmetry breaking as compared to our previous results using N-f = 2 + 1 + 1 twisted mass fermions. The masses of the hyperons and charmed baryons evaluated using this ensemble are in agreement with the experimental values. We provide predictions for the mass of the doubly charmed Xi*(cc), as well as of the doubly and triply charmed Omega s that have not yet been determined experimentally.
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