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Highlights from recent computations in lattice QCD involving baryons are presented. Calculations of the proton mass and spin decompositions are discussed, a percent level determination of the nucleon axial coupling is described, and…

Nuclear Theory · Physics 2019-09-19 Colin Morningstar

We present highly excited spectra of charm-light and charm-strange mesons from dynamical lattice QCD. Our calculations are performed on anisotropic $N_{f} = 2+1$ dynamical ensembles generated by the Hadron Spectrum Collaboration. The use of…

High Energy Physics - Lattice · Physics 2013-01-16 Graham Moir , Michael Peardon , Sinead M. Ryan , Christopher E. Thomas

The extraction of hadron-hadron scattering parameters from lattice data by using the L\"uscher approach becomes increasingly complicated in the presence of inelastic channels. We propose a method for the direct extraction of the complex…

High Energy Physics - Lattice · Physics 2016-06-29 Dimitri Agadjanov , Michael Doring , Maxim Mai , Ulf-G. Meißner , Akaki Rusetsky

I review recent Lattice results. In particular, the confinement mechanism and string breaking, glueballs and hybrid mesons as well as light hadron spectroscopy are discussed.

High Energy Physics - Lattice · Physics 2008-11-26 Gunnar S. Bali

An important tool for the analysis of results of numerical simulations of lattice QCD is chiral perturbation theory. In Wilson chiral perturbation theory the effects of the finite lattice spacing $a$ are taken into account. In recent years…

High Energy Physics - Lattice · Physics 2016-05-31 Sebastian Engelnkemper , Gernot Münster

I discuss how masses and widths of hadron resonances are extracted from lattice QCD. Recent lattice results on the light, strange and charm meson resonances are reviewed. Their properties are revealed by simulating the corresponding…

High Energy Physics - Phenomenology · Physics 2013-04-09 S. Prelovsek , C. B. Lang , L. Leskovec , D. Mohler , R. M. Woloshyn

Recent progress in lattice calculations of properties of open-charm mesons, both regular and exotic, is reviewed, with an emphasis on spectroscopy. After reviewing recent calculations of excited state energy levels I will discuss progress…

High Energy Physics - Lattice · Physics 2015-08-13 Daniel Mohler

I present recent developments in the lattice QCD calculations of the light hadron spectrum. Emphasis is placed on the limitation of the quenched approximation in reproducing the observed spectrum and indications that the discrepancy is…

High Energy Physics - Lattice · Physics 2009-10-31 T. Yoshie

Quark models taking into account the dynamical effects of hadronic decay often produce very different predictions for mass shifts in the hadron spectrum. The consequences for meson spectroscopy can be dramatic and completely obscure the…

High Energy Physics - Phenomenology · Physics 2016-05-16 George Rupp , Susana Coito , Eef van Beveren

Determining the hadron spectrum and hadron properties beyond the ground states is a challenge in lattice QCD. Most of these results have been in the quenched approximation but now we are entering the dynamical era. I review some of the…

Nuclear Theory · Physics 2008-11-26 C. B. Lang

Isospin symmetry is not exact and the corrections to the isosymmetric limit are, in general, at the percent level. For gold plated quantities, such as pseudoscalar meson masses or the kaon leptonic and semileptonic decay rates, these…

High Energy Physics - Lattice · Physics 2013-11-13 Nazario Tantalo

We investigate hadron spectra in 2-color QCD using lattice simulation with $N_{f}=2$ at low temperature and finite density in which there appears not only the hadronic phase but also the superfluid phase. We first calculate the pion and rho…

High Energy Physics - Lattice · Physics 2022-11-28 Kotaro Murakami , Daiki Suenaga , Kei Iida , Etsuko Itou

This is a review of recent developments in hadron structure within the framework of Lattice QCD. The main focus is on recent achievements in the evaluation of nucleon quantities, such as the axial charge, electromagnetic form factors, the…

High Energy Physics - Lattice · Physics 2014-11-04 Martha Constantinou

Results of hadron spectroscopy with two dynamical mass-degenerate chirally improved quarks are presented. Three ensembles with pion masses of 322(5), 470(4) and 525(7) MeV, lattices of size 16^3 \times 32, and lattice spacings close to 0.15…

High Energy Physics - Lattice · Physics 2011-02-18 Georg P. Engel , C. B. Lang , Markus Limmer , Daniel Mohler , Andreas Schäfer

I present an overview of recent lattice QCD results on hadron spectroscopy and matrix elements. Case studies include light quark spectroscopy, the determination of $\alpha_s$ from heavy quark spectroscopy, the D-meson decay constant, a…

High Energy Physics - Lattice · Physics 2007-05-23 T. DeGrand

Progress in calculating the spectrum of excited baryons and mesons in lattice QCD is described. Correlation matrices of sets of spatially-extended hadron operators have been studied and their effectiveness in facilitating the extraction of…

High Energy Physics - Lattice · Physics 2010-12-01 Colin Morningstar , A. Bell , C. Y. Chen , D. Lenkner , C. H. Wong , J. Bulava , J. Foley , K. J. Juge , M. Peardon

This review treats the advances in Light Baryon Spectroscopy of the last two decades, which were mainly obtained by measuring meson-production reactions at photon facilities all over the world. We provide a consistent compendium of…

Nuclear Experiment · Physics 2022-03-14 Annika Thiel , Farah Afzal , Yannick Wunderlich

I review recent lattice QCD results on light hadron spectroscopy and pseudoscalar decay constants.

High Energy Physics - Lattice · Physics 2015-03-18 Christian Hoelbling

This article reviews lattice QCD results for the light hadron spectrum. We give an overview of different formulations of lattice QCD, with discussions on the fermion doubling problem and improvement programs. We summarize recent…

High Energy Physics - Lattice · Physics 2012-04-12 Zoltan Fodor , Christian Hoelbling

We study the formation of resonances in terms of the chiral SU(3) Lagrangian. At leading order parameter-free predictions are obtained for the scattering of Goldstone bosons off any hadron once we insist on approximate crossing symmetry of…

Nuclear Theory · Physics 2007-05-23 M. F. M. Lutz , E. E. Kolomeitsev