Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/96081
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Type: | Journal article |
Title: | Finite-volume Hamiltonian method for coupled-channels interactions in lattice QCD |
Author: | Wu, J.-J. Lee, T.-S. Thomas, A. Young, R. |
Citation: | Physical Review C: Nuclear Physics, 2014; 90(5):055206-1-055206-14 |
Publisher: | APS |
Issue Date: | 2014 |
ISSN: | 0556-2813 1089-490X |
Statement of Responsibility: | Jia-Jun Wu, T.-S. H. Lee, A. W. Thomas, and R. D. Young |
Abstract: | Within a multichannel formulation of ππ scattering, we investigate the use of the finite-volume Hamiltonian approach to resolve scattering observables from lattice QCD spectra. The asymptotic matching of the well-known L¨uscher formalism encodes a unique finite-volume spectrum. Nevertheless, in many practical situations, such as coupled-channels systems, it is advantageous to interpolate isolated lattice spectra in order to extract physical scattering parameters. Here we study the use of the Hamiltonian framework as a parametrization that can be fit directly to lattice spectra. We find that, with a modest amount of lattice data, the scattering parameters can be reproduced rather well, with only a minor degree of model dependence. |
Rights: | © 2014 American Physical Society |
DOI: | 10.1103/PhysRevC.90.055206 |
Grant ID: | http://purl.org/au-research/grants/arc/FL0992247 http://purl.org/au-research/grants/arc/DP140103067 http://purl.org/au-research/grants/arc/FT120100821 |
Published version: | http://dx.doi.org/10.1103/physrevc.90.055206 |
Appears in Collections: | Aurora harvest 7 Physics publications |
Files in This Item:
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hdl_96081.pdf | Accepted version | 902.1 kB | Adobe PDF | View/Open |
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