Towards the continuum limit with improved Wilson fermions employing open boundary conditions

التفاصيل البيبلوغرافية
العنوان: Towards the continuum limit with improved Wilson fermions employing open boundary conditions
المؤلفون: Wolfgang Söldner, Enno E. Scholz, Thomas Wurm, Gunnar S. Bali, Jakob Simeth, Andreas Schäfer, Meinulf Göckeler, Sara Collins, Fabian Hutzler, Andre Sternbeck
المصدر: Scopus-Elsevier
بيانات النشر: arXiv, 2017.
سنة النشر: 2017
مصطلحات موضوعية: Physics, Quantum chromodynamics, Continuum (topology), High Energy Physics::Lattice, Lattice field theory, Nuclear Theory, High Energy Physics::Phenomenology, High Energy Physics - Lattice (hep-lat), FOS: Physical sciences, Fermion, Renormalization, High Energy Physics - Lattice, Lattice (music), Quantum electrodynamics, Limit (mathematics), Boundary value problem
الوصف: We present selected results obtained by RQCD from simulations of $N_f=2+1$ flavours of non-perturbatively $\mathcal{O}(a)$ improved Wilson fermions, employing open boundary conditions in time. The ensembles were created within the CLS (Coordinated Lattice Simulations) effort at five different values of the lattice spacing, ranging from 0.085fm down to below 0.04fm. Many quark mass combinations were realized, in particular along lines where the sum of the bare quark masses was kept fixed as well as trajectories of an approximately physical renormalized strange quark mass. Several key observables, including meson and baryon masses and the axial charge of the nucleon have been computed, and preliminary results are presented here. In some cases an accurate and controlled extrapolation to the continuum limit has become possible.
Comment: 14 pages, 11 figures, parallel talk presented at the 34th International Symposium on Lattice Field Theory (LATTICE 2016), 24-30 July, 2016, University of Southampton, UK
DOI: 10.48550/arxiv.1702.01035
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f6f165fe0f9b7595f1a39a8b0e26f320
Rights: OPEN
رقم الانضمام: edsair.doi.dedup.....f6f165fe0f9b7595f1a39a8b0e26f320
قاعدة البيانات: OpenAIRE
الوصف
DOI:10.48550/arxiv.1702.01035