https://doi.org/10.1140/epja/i2019-12803-6
Regular Article - Theoretical Physics
Light-cone distribution amplitudes of octet baryons from lattice QCD
1
Institut für Theoretische Physik, Universität Regensburg, Universitätsstraße 31, 93040, Regensburg, Germany
2
Department of Theoretical Physics, Tata Institute of Fundamental Research, Homi Bhabha Road, 400005, Mumbai, India
3
Marian Smoluchowski Institute of Physics, Jagiellonian University, ul. Łojasiewicza 11, 30-348, Kraków, Poland
4
Theoretisch-Physikalisches Institut, Friedrich-Schiller-Universität Jena, 07743, Jena, Germany
* e-mail: philipp.wein@physik.uni-regensburg.de
Received:
5
April
2019
Accepted:
13
June
2019
Published online:
25
July
2019
We present lattice QCD results for the wave function normalization constants and the first moments of the distribution amplitudes for the lowest-lying baryon octet. The analysis is based on a large number of 
ensembles comprising multiple trajectories in the quark mass plane including physical pion (and kaon) masses, large volumes, and, most importantly, five different lattice spacings down to 
fm. This allows us to perform a controlled extrapolation to the continuum and infinite volume limits by a simultaneous fit to all available data. We demonstrate that the formerly observed violation of flavor symmetry breaking constraints can, indeed, be attributed to discretization effects that vanish in the continuum limit.
© Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature, 2019
