Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/111186
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Type: Journal article
Title: Electromagnetic form factors at large momenta from lattice QCD
Author: Chambers, A.
Dragos, J.
Horsley, R.
Nakamura, Y.
Perlt, H.
Pleiter, D.
Rakow, P.
Schierholz, G.
Schiller, A.
Somfleth, K.
Stüben, H.
Young, R.
Zanotti, J.
Citation: Physical Review D, 2017; 96(11):114509-1-114509-7
Publisher: American Physical Society
Issue Date: 2017
ISSN: 2470-0010
2470-0029
Statement of
Responsibility: 
A.J. Chambers, J. Dragos, R. Horsley, Y. Nakamura, H. Perlt, D. Pleiter, P.E.L. Rakow, G. Schierholz, A. Schiller, K. Somfleth, H. Stüben, R.D. Young and J.M. Zanotti
Abstract: Accessing hadronic form factors at large momentum transfers has traditionally presented a challenge for lattice QCD simulations. Here, we demonstrate how a novel implementation of the Feynman-Hellmann method can be employed to calculate hadronic form factors in lattice QCD at momenta much higher than previously accessible. Our simulations are performed on a single set of gauge configurations with three flavors of degenerate mass quarks corresponding to mπ≈470  MeV. We are able to determine the electromagnetic form factors of the pion and nucleon up to approximately 6  GeV2, with results for the ratio of the electric and magnetic form factors of the proton at our simulated quark mass agreeing well with experimental results.
Rights: © 2017 American Physical Society
RMID: 0030080710
DOI: 10.1103/PhysRevD.96.114509
Grant ID: http://purl.org/au-research/grants/arc/FT120100821
http://purl.org/au-research/grants/arc/FT100100005
http://purl.org/au-research/grants/arc/DP140103067
Appears in Collections:Physics publications

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