Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Octet baryon masses in next-to-next-to-next-to-leading order covariant
  baryon chiral perturbation theory   We study the ground-state octet baryon masses and sigma terms using the
covariant baryon chiral perturbation theory (ChPT) with the
extended-on-mass-shell (EOMS) renormalization scheme up to
next-to-next-to-next-to-leading order (N$^3$LO). By adjusting the available 19
low-energy constants (LECs), a reasonable fit of the $n_f=2+1$ lattice quantum
chromodynamics (LQCD) results from the PACS-CS, LHPC, HSC, QCDSF-UKQCD and
NPLQCD collaborations is achieved. Finite-volume corrections to the lattice
data are calculated self-consistently. Our study shows that N$^3$LO BChPT
describes better the light quark mass evolution of the lattice data than the
NNLO BChPT does and the various lattice simulations seem to be consistent with
each other. We also predict the pion and strangeness sigma terms of the octet
baryons using the LECs determined in the fit of their masses. The predicted
pion- and strangeness-nucleon sigma terms are $\sigma_{\pi N}=43(1)(6)$ MeV and
$\sigma_{s N}=126(24)(54)$ MeV, respectively.

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The categories of this paper are: funct-an
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The categories of this paper are: hep-ex
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The categories of this paper are: comp-gas
2
The categories of this paper are: math
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The categories of this paper are: acc-phys
35
The categories of this paper are: mtrl-th
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The categories of this paper are: stat
9
The categories of this paper are: nlin
31
The categories of this paper are: ao-sci
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The categories of this paper are: econ
33
The categories of this paper are: plasm-ph
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The categories of this paper are: q-alg
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The categories of this paper are: adap-org
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The categories of this paper are: atom-ph
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The categories of this paper are: patt-sol
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The categories of this paper are: cmp-lg