Zobrazeno 1 - 10
of 291
pro vyhledávání: '"Bali Gunnar"'
Nucleon weak matrix elements can be extracted from nucleon correlation functions with lattice QCD simulations. The signal-to-noise ratio prohibits the analysis at large source-sink separations and as a consequence, excited state contamination affects
Externí odkaz:
http://arxiv.org/abs/2405.20875
Autor:
Bali, Gunnar S., Collins, Sara, Heybrock, Simon, Löffler, Marius, Rödl, Rudolf, Söldner, Wolfgang, Weishäupl, Simon
Publikováno v:
Phys.Rev.D 108, 034512 (2023)
We determine the axial, scalar and tensor isovector charges of the nucleon, sigma and cascade baryons as well as the difference between the up and down quark masses, $m_u-m_d$. We employ gauge ensembles with $N_f=2+1$ non-perturbatively improved Wils
Externí odkaz:
http://arxiv.org/abs/2305.04717
Autor:
Auge, Tanja, Bali, Gunnar, Klettke, Meike, Ludäscher, Bertram, Söldner, Wolfgang, Weishäupl, Simon, Wettig, Tilo
We present a provenance model for the generic workflow of numerical Lattice Quantum Chromodynamics (QCD) calculations, which constitute an important component of particle physics research. These calculations are carried out on the largest supercomput
Externí odkaz:
http://arxiv.org/abs/2303.12640
Autor:
Petrak, Pia Leonie Jones, Bali, Gunnar, Collins, Sara, Heitger, Jochen, Jenkins, Daniel, Weishäupl, Simon
A lot of progress has been made in the direct determination of nucleon sigma terms. Using similar methods, we consider the sigma terms of the other octet baryons as well. These are determined on CLS gauge field ensembles employing the L\"uscher-Weisz
Externí odkaz:
http://arxiv.org/abs/2301.03871
Autor:
Bali, Gunnar, Bignell, Ryan, Francis, Anthony, Gottlieb, Steven, Gupta, Rajan, Kanamori, Issaku, Kostrzewa, Bartosz, Kotov, Andrey Yu., Kuramashi, Yoshinobu, Mawhinney, Robert, Schmidt, Christian, Söldner, Wolfgang, Sun, Peng
Publikováno v:
PoS(LATTICE2022)203
The generation of ensembles of gauge configurations is a considerable expense. The preservation and curation of these ensembles constitutes a valuable shared resource for the lattice field theory community. The organizers of Lattice 2022 dedicated a
Externí odkaz:
http://arxiv.org/abs/2212.10138
Publikováno v:
Phys.Rev.D 107 (2023) 5
QCD matrix elements of axial and vector currents between nucleons are required for the Monte Carlo reconstruction of the energy of neutrinos that are detected in long baseline oscillation experiments in the quasi-elastic regime. The cleanest approach
Externí odkaz:
http://arxiv.org/abs/2211.12278
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)548
We present preliminary results for the charm quark mass in the $N_f=4$ RGI scheme. These were obtained using $N_f=2+1$ CLS ensembles with $\mathcal{O}(a)$ non-perturbatively improved Wilson fermions. We employed five different lattice spacings, rangi
Externí odkaz:
http://arxiv.org/abs/2206.04178
Publikováno v:
Phys. Rev. D 105, 054516 (2022)
We determine the leading order mesonic~($B_0$ and $F_0$) and baryonic~($m_0$, $D$ and $F$) SU(3) chiral perturbation theory low energy constants from lattice QCD. We employ gauge ensembles with $N_f=3$ (i.e., $m_u=m_d=m_s$) non-perturbatively improve
Externí odkaz:
http://arxiv.org/abs/2201.05591
Autor:
Petrak, Pia Leonie Jones, Bali, Gunnar, Collins, Sara, Heitger, Jochen, Jenkins, Daniel, Weishäupl, Simon, Wurm, Thomas
A lot of progress has been made in the determination of nucleon sigma terms. In this work we consider the sigma terms of the other octet baryons as well. These are determined on CLS gauge field ensembles employing the L\"uscher-Weisz gluon action and
Externí odkaz:
http://arxiv.org/abs/2112.00586