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https://hdl.handle.net/2440/99702
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Type: | Journal article |
Title: | Hamiltonian effective field theory study of the N* (1535) resonance in lattice QCD |
Author: | Liu, Z. Kamleh, W. Leinweber, D. Stokes, F. Thomas, A. Wu, J. |
Citation: | Physical Review Letters, 2016; 116(8):082004-1-082004-5 |
Publisher: | American Physical Society |
Issue Date: | 2016 |
ISSN: | 0031-9007 1079-7114 |
Statement of Responsibility: | Zhan-Wei Liu, Waseem Kamleh, Derek B. Leinweber, Finn M. Stokes, Anthony W. Thomas and Jia-Jun Wu |
Abstract: | Drawing on experimental data for baryon resonances, Hamiltonian effective field theory (HEFT) is used to predict the positions of the finite-volume energy levels to be observed in lattice QCD simulations of the lowest-lying Jᵖ=1/2− nucleon excitation. In the initial analysis, the phenomenological parameters of the Hamiltonian model are constrained by experiment and the finite-volume eigenstate energies are a prediction of the model. The agreement between HEFT predictions and lattice QCD results obtained on volumes with spatial lengths of 2 and 3 fm is excellent. These lattice results also admit a more conventional analysis where the low-energy coefficients are constrained by lattice QCD results, enabling a determination of resonance properties from lattice QCD itself. Finally, the role and importance of various components of the Hamiltonian model are examined. |
Rights: | © 2016 American Physical Society |
DOI: | 10.1103/PhysRevLett.116.082004 |
Grant ID: | http://purl.org/au-research/grants/arc/DP120104627 http://purl.org/au-research/grants/arc/DP150103164 http://purl.org/au-research/grants/arc/DP140103067 http://purl.org/au-research/grants/arc/LE120100181 http://purl.org/au-research/grants/arc/FL0992247 http://purl.org/au-research/grants/arc/DP150103101 |
Published version: | http://dx.doi.org/10.1103/physrevlett.116.082004 |
Appears in Collections: | Aurora harvest 7 Physics publications |
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