https://doi.org/10.1051/epjconf/201817505026
Multi-hadron spectroscopy in a large physical volume
1
Dept. of Mathematics and Computer Science and CP3-Origins, University of Southern Denmark, Campusvej 55, 5230 Odense M, Denmark
2
PRISMA Cluster of Excellence and Institute for Nuclear Physics, University of Mainz, Johann Joachim Becher-Weg 45, 55099 Mainz, Germany
3
Department of Physics, Carnegie Mellon University, Pittsburgh, PA 15213, USA
* Speaker, e-mail: hoerz@uni-mainz.de
Published online: 26 March 2018
We demonstrate the effcacy of the stochastic LapH method to treat all-toall quark propagation on a Nf = 2 + 1 CLS ensemble with large linear spatial extent L = 5:5 fm, allowing us to obtain the benchmark elastic isovector p-wave pion-pion scattering amplitude to good precision already on a relatively small number of gauge configurations. These results hold promise for multi-hadron spectroscopy at close-to-physical pion mass with exponential finite-volume effects under control.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
