Bali, Gunnar S. and Braun, Vladimir M. and Buerger, Simon and Collins, Sara and Goeckeler, Meinulf and Gruber, Michael and Hutzler, Fabian and Korcyl, Piotr and Schaefer, Andreas and Soeldner, Wolfgang and Sternbeck, Andre and Wein, Philipp (2019) Light-cone distribution amplitudes of octet baryons from lattice QCD. EUROPEAN PHYSICAL JOURNAL A, 55 (7): 116. ISSN 1434-6001, 1434-601X
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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 N-f = 2 + 1 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 a = 0.039 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.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | EXCLUSIVE PROCESSES; ASYMPTOTIC-BEHAVIOR; WAVE-FUNCTIONS; FORM-FACTORS; RENORMALIZATION; OPERATORS; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics Physics > Institute of Theroretical Physics > Chair Professor Schäfer > Group Andreas Schäfer Physics > Institute of Theroretical Physics > Chair Professor Schäfer > Group Gunnar Bali Physics > Institute of Theroretical Physics > Chair Professor Schäfer > Group Dirk Pleiter |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 02 Apr 2020 11:06 |
| Last Modified: | 02 Apr 2020 11:06 |
| URI: | https://pred.uni-regensburg.de/id/eprint/26603 |
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