Scattering processes and resonances from lattice QCD
The vast majority of hadrons observed in nature are not stable under the strong interaction;
rather they are resonances whose existence is deduced from enhancements in the energy …
rather they are resonances whose existence is deduced from enhancements in the energy …
Scale setting and the light baryon spectrum in Nf= 2+ 1 QCD with Wilson fermions
A bstract We determine the light baryon spectrum on ensembles generated by the
Coordinated Lattice Simulations (CLS) effort, employing N f= 2+ 1 flavours of non …
Coordinated Lattice Simulations (CLS) effort, employing N f= 2+ 1 flavours of non …
Baryon spectrum with twisted mass fermions
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 …
dynamical twisted mass fermion gauge configurations. The simulations are performed using …
Scalar strangeness content of the nucleon and baryon sigma terms
The scalar strangeness content of the nucleon, characterized by the so-called strangeness-
nucleon sigma term, is of fundamental importance in understanding its sea-quark flavor …
nucleon sigma term, is of fundamental importance in understanding its sea-quark flavor …
Finite volume effects in the chiral extrapolation of baryon masses
MFM Lutz, R Bavontaweepanya, C Kobdaj, K Schwarz - Physical Review D, 2014 - APS
We perform an analysis of the QCD lattice data on the baryon octet and decuplet masses
based on the relativistic chiral Lagrangian. The baryon self-energies are computed in a finite …
based on the relativistic chiral Lagrangian. The baryon self-energies are computed in a finite …
Magnetic moments of the spin- doubly charmed baryons in covariant baryon chiral perturbation theory
MZ Liu, Y Xiao, LS Geng - Physical Review D, 2018 - APS
Inspired by the recent discovery of the Ξ cc++ by the LHCb Collaboration, we study the
magnetic moments of the spin-1/2 doubly charmed baryons up to the next-to-leading order …
magnetic moments of the spin-1/2 doubly charmed baryons up to the next-to-leading order …
[HTML][HTML] On the convergence of the chiral expansion for the baryon ground-state masses
MFM Lutz, Y Heo, XY Guo - Nuclear Physics A, 2018 - Elsevier
We study the chiral expansion of the baryon octet and decuplet masses in the isospin limit. It
is illustrated that a chiral expansion of the one-loop contributions is rapidly converging up to …
is illustrated that a chiral expansion of the one-loop contributions is rapidly converging up to …
[HTML][HTML] Low-energy constants in the chiral Lagrangian with baryon octet and decuplet fields from Lattice QCD data on CLS ensembles
MFM Lutz, Y Heo, XY Guo - The European Physical Journal C, 2023 - Springer
We perform an analysis of Lattice QCD data on baryon octet and decuplet masses based on
the chiral SU (3) Lagrangian. Low-energy constants (LEC) are adjusted to describe baryon …
the chiral SU (3) Lagrangian. Low-energy constants (LEC) are adjusted to describe baryon …
[HTML][HTML] Pion–nucleon sigma term revisited in covariant baryon chiral perturbation theory
We study the latest N f= 2+ 1+ 1 and N f= 2 ETMC lattice QCD simulations of the nucleon
masses and extract the pion–nucleon sigma term utilizing the Feynman–Hellmann theorem …
masses and extract the pion–nucleon sigma term utilizing the Feynman–Hellmann theorem …
Goldberger-Treiman relation and Wu-type experiment in the decuplet sector
M Bertilsson, S Leupold - Physical Review D, 2024 - APS
The leading-order chiral Lagrangian for the baryon octet and decuplet states coupled to
Goldstone bosons and external sources contains six low-energy constants. Five of them are …
Goldstone bosons and external sources contains six low-energy constants. Five of them are …