Status of the MILC calculation of electromagnetic contributions to pseudoscalar masses
| Autor: | James Edward Hetrick, L. Levkov, Carleton DeTar, M. B. Oktay, R. S. Van De Water, A. Torok, S. Basaka, Jack Laiho, Steven Gottlieb, Robert L. Sugar, E. D. Freeland, Ran Zhou, Urs M. Heller, Claude Bernard, Walter Freeman, James C. Osborn, J. Foley, Alexei Bazavov, D. Toussaint |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
Quark
Quantum chromodynamics Physics Particle physics Finite volume method 010308 nuclear & particles physics High Energy Physics::Lattice Lattice field theory High Energy Physics::Phenomenology High Energy Physics - Lattice (hep-lat) FOS: Physical sciences 01 natural sciences Ion Pseudoscalar High Energy Physics - Lattice Electromagnetism Lattice (order) Quantum electrodynamics 0103 physical sciences High Energy Physics::Experiment 010306 general physics |
| DOI: | 10.48550/arxiv.1210.8157 |
| Popis: | We calculate pseudoscalar masses on gauge configurations containing the effects of 2+1 flavors of dynamical asqtad quarks and quenched electromagnetism. The lattice spacings vary from 0.12 to 0.06 fm. The masses are fit with staggered chiral perturbation theory including NLO electromagnetic terms. We attempt to extract the fit parameters for the electromagnetic contributions, while taking into account the finite volume effects, and extrapolate them to the physical limit. Comment: 7 pages, 3 figures, 2 tables. Proceedings of the 30th International Symposium on Lattice Field Theory - Lattice 2012; June 24-29, 2012; Cairns, Australia. Expanded acknowledgements |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|