329 citations · 3.6k across the 77 of their papers we have counts for
5 papers · 1 filter
Algorithms for lattice QCD: progress and challenges
Stefan Schaefer
The development of improved algorithms for QCD on the lattice has enabled us to do calculations at small quark masses and get control over the chiral extrapolation. Also finer latt…
Diquark effects in light baryon correlators from lattice QCD
Thomas DeGrand, Zhaofeng Liu, Stefan Schaefer
We study the role of diquarks in light baryons through point to point baryon correlators. We contrast results from quenched simulations with ones with two flavors of dynamical over…
Excited nucleons with chirally improved fermions
Dirk Broemmel, Peter Crompton, Christof Gattringer +4
We study positive and negative parity nucleons on the lattice using the chirally improved lattice Dirac operator. Our analysis is based on a set of three operators chi_i with the n…
Impact of Higher Order and Soft Gluon Corrections on the Extraction of Higher Twist Effects in DIS
S. Schaefer, A. Schäfer, M. Stratmann
The impact of recently calculated next-to-next-to-leading order QCD corrections and soft gluon resummations on the extraction of higher twist contributions to the deep-inelastic st…
Diffractive charged meson pair production
B. Lehmann-Dronke, M. Maul, S. Schaefer +2
We investigate the possibility to measure the nonforward gluon distribution function by means of diffractively produced π^+π^- and K^+K^- pairs in polarized lepton nucleon scatteri…