Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/94242
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Type: | Journal article |
Title: | Magnetic form factors of the octet baryons from lattice QCD and chiral extrapolation |
Author: | Shanahan, P. Horsley, R. Nakamura, Y. Pleiter, D. Rakow, P. Schierholz, G. Stueben, H. Thomas, A. Young, R. Zanotti, J. |
Citation: | Physical Review D: Particles, Fields, Gravitation and Cosmology, 2014; 89(7):074511-1-074511-20 |
Publisher: | American Physical Society |
Issue Date: | 2014 |
ISSN: | 1550-7998 1550-2368 |
Statement of Responsibility: | P. E. Shanahan, R. Horsley, Y. Nakamura, D. Pleiter, P. E. L. Rakow, G. Schierholz, H. Stüben, A.W. Thomas, R. D. Young, and J. M. Zanotti |
Abstract: | We present a 2 + 1-flavor lattice QCD calculation of the electromagnetic Dirac and Pauli form factors of the octet baryons. The magnetic Sachs form factor is extrapolated at six fixed values of Q2 to the physical pseudoscalar masses and infinite volume using a formulation based on heavy-baryon chiral perturbation theory with finite-range regularization. We properly account for omitted disconnected quark contractions using a partially quenched effective field theory formalism. The results compare well with the experimental form factors of the nucleon and the magnetic moments of the octet baryons. |
Rights: | © 2014 American Physical Society |
DOI: | 10.1103/PhysRevD.89.074511 |
Grant ID: | http://purl.org/au-research/grants/arc/FL0992247 http://purl.org/au-research/grants/arc/DP110101265 http://purl.org/au-research/grants/arc/FT120100821 http://purl.org/au-research/grants/arc/FT100100005 |
Published version: | http://dx.doi.org/10.1103/physrevd.89.074511 |
Appears in Collections: | Aurora harvest 2 Chemistry and Physics publications |
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hdl_94242.pdf | Published version | 1.38 MB | Adobe PDF | View/Open |
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