Speaker
Jeremy Green
(DESY)
Description
A previous calculation of the binding energy of the H dibaryon in SU(3)-flavour-symmetric lattice QCD showed unexpectedly large discretization effects. To better understand this, we have repeated the calculation using different lattice actions based on $N_f=3$ ensembles from CLS and OpenLat and newly generated $N_f=3+1$ ensembles with highly improved staggered quarks. Results will be shown for two different unitary setups and at least three different mixed actions. Although we obtain compatible continuum limits, we find that the size of discretization effects varies considerably.
Primary author
Jeremy Green
(DESY)
Co-authors
Amy Nicholson
(University of North Carolina)
Andre Walker-Loud
(LBNL)
Andrea Shindler
(Michigan State University)
Andrew Hanlon
(Carnegie Mellon University)
Anthony Francis
(National Yang Ming Chiao Tung University)
Colin Morningstar
(Carnegie Mellon University)
Fernando Romero-Lopez
(MIT / Uni Bern)
Hartmut Wittig
(University of Mainz)
Henry Monge-Camacho
(Oak Ridge National Laboratory)
Kate Clark
(NVIDIA)
Parikshit Junnarkar
(Technische Universität Darmstadt)
Pavlos Vranas
(Lawrence Livermore National Laboratory)
Renwick Hudspith
(GSI Darmstadt)
Savvas Zafeiropoulos
(Aix Marseille University)
Srijit Paul
(University of Maryland)
