# Baryon spectrum with $N_f=2+1+1$ twisted mass fermions

@article{Alexandrou2014BaryonSW,
title={Baryon spectrum with \$N\_f=2+1+1\$ twisted mass fermions},
author={Constantia Alexandrou and Vincent Drach and Karl Jansen and Christos Kallidonis and Giannis Koutsou},
journal={Physical Review D},
year={2014},
volume={90},
pages={074501}
}
• Published 17 June 2014
• Physics
• Physical Review D
The masses of the low-lying baryons are evaluated using a total of ten ensembles of dynamical twisted mass fermion gauge configurations. The simulations are performed using two degenerate flavors of light quarks, and a strange and a charm quark fixed to approximately their physical values. The light sea quarks correspond to pseudo scalar masses in the range of about 210 to 430 MeV. We use the Iwasaki improved gluonic action at three values of the coupling constant corresponding to lattice…
• Physics
• 2014
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We compute masses of $D$ meson, $D_s$ meson and charmonium states using $N_f=2+1+1$ Wilson twisted mass lattice QCD. All results are extrapolated to physical light quark masses, physical strange and
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• 2018
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We perform a direct calculation of the gluon momentum fraction of the nucleon using maximally twisted mass fermion ensembles with $N_f=2+1+1$ flavors at a pion mass of about $370\,\mathrm{MeV}$ and a
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• Physics
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• 2021
An analysis of the pion-nucleon σ-term σ_{πN} using six ensembles with 2+1+1-flavor highly improved staggered quark action generated by the MILC Collaboration shows that the leading contribution to the isoscalar scalar charge comes from Nπ and Nππ states.

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