Zobrazeno 1 - 10
of 52
pro vyhledávání: '"Simeth Jakob"'
Publikováno v:
EPJ Web of Conferences, Vol 175, p 05028 (2018)
We present preliminary results for the masses and decay constants of the η and η′ mesons using CLS Nf = 2 + 1 ensembles. One of the major challenges in these calculations are the large statistical fluctuations due to disconnected quark loops. We
Externí odkaz:
https://doaj.org/article/7cb148025e1d4b1d8590e9d7515fe419
Publikováno v:
EPJ Web of Conferences, Vol 175, p 02010 (2018)
We report recent efforts by CLS to generate an ensemble with physical lightand strange-quark masses in a lattice volume of 192 × 963 at β = 3:55 corresponding to a lattice spacing of 0:064 fm. This ensemble is being generated as part of the CLS 2+1
Externí odkaz:
https://doaj.org/article/54bf3245335a467d9c969f5f9fc1630f
Autor:
Bali, Gunnar S., Collins, Sara, Georg, Peter, Jenkins, Daniel, Korcyl, Piotr, Schäfer, Andreas, Scholz, Enno E., Simeth, Jakob, Söldner, Wolfgang, Weishäupl, Simon
Publikováno v:
JHEP 05 (2023) 035
We determine the light baryon spectrum on ensembles generated by the Coordinated Lattice Simulations (CLS) effort, employing $N_f=2+1$ flavours of non-perturbatively improved Wilson fermions. The hadron masses are interpolated and extrapolated within
Externí odkaz:
http://arxiv.org/abs/2211.03744
Publikováno v:
PoS(LATTICE2021)286
We present results for the $\eta$ and $\eta^\prime$ masses and their four independent decay constants at the physical point as well as their anomalous gluonic matrix elements $a_{\eta^{(\prime)}}$. The chiral and continuum limit extrapolation is perf
Externí odkaz:
http://arxiv.org/abs/2111.05656
Publikováno v:
JHEP08(2021)137
We determine the masses, the singlet and octet decay constants as well as the anomalous matrix elements of the $\eta$ and $\eta^\prime$ mesons in $N_f=2+1$ QCD\@. The results are obtained using twenty-one CLS ensembles of non-perturbatively improved
Externí odkaz:
http://arxiv.org/abs/2106.05398
Publikováno v:
Phys. Rev. Lett. 125, 242002 (2020)
In this Letter, we provide a determination of the coupling constant in three-flavor quantum chromodynamics (QCD), $\alpha^{\overline{\mathrm{MS}}}_s(\mu)$, for $\overline{\mathrm{MS}}$ renormalization scales $\mu \in (1,\,2)$ GeV. The computation use
Externí odkaz:
http://arxiv.org/abs/2003.05781
We report recent efforts by CLS to generate an ensemble with physical light- and strange-quark masses in a lattice volume of 192x96^3 at $\beta=3.55$ corresponding to a lattice spacing of 0.064 fm. This ensemble is being generated as part of the CLS
Externí odkaz:
http://arxiv.org/abs/1712.04884
We present preliminary results for the masses and decay constants of the $\eta$ and $\eta^\prime$ mesons using CLS $N_f = 2+1$ ensembles. One of the major challenges in these calculations are the large statistical fluctuations due to disconnected qua
Externí odkaz:
http://arxiv.org/abs/1710.06733
Autor:
Bali, Gunnar S., Collins, Sara, Hutzler, Fabian, Göckeler, Meinulf, Schäfer, Andreas, Scholz, Enno E., Simeth, Jakob, Söldner, Wolfgang, Sternbeck, André, Wurm, Thomas
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 La
Externí odkaz:
http://arxiv.org/abs/1702.01035
Publikováno v:
Phys. Rev. D 94, 074501 (2016)
The explicit breaking of chiral symmetry of the Wilson fermion action results in additive quark mass renormalization. Moreover, flavour singlet and non-singlet scalar currents acquire different renormalization constants with respect to continuum regu
Externí odkaz:
http://arxiv.org/abs/1606.09039