期刊
PHYSICAL REVIEW D
卷 96, 期 3, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.96.034520
关键词
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资金
- NSF/Career [1452055]
- U.S. Department of Energy, Office of Nuclear Physics [DE-AC05-06OR23177, DE-SC0016582]
- German Research Foundation (DFG) [MA7156/1]
- National Science Foundation CAREER [PHY-1151648]
- U.S. Department of Energy [DE-FG02-95ER40907]
- Division Of Physics
- Direct For Mathematical & Physical Scien [1452055] Funding Source: National Science Foundation
Recent N-f = 2 + 1 lattice data for meson-meson scattering in the p-wave and with isospin I = 1 are analyzed using a unitarized model inspired by chiral perturbation theory in the inverse-amplitude formulation for two and three flavors. Chiral extrapolations are performed that postdict phase shifts extracted from experiment quite well. In addition, the low-energy constants are compared to the ones from a recent analysis of N-f = 2 lattice QCD simulations to check for the consistency of the hadronic model used here. Some inconsistencies are detected in the fits to N-f = 2 + 1 data, in contrast to the previous analysis of N-f = 2 data.
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