This title appears in the Scientific Report :
2017
Please use the identifier:
http://hdl.handle.net/2128/14958 in citations.
Hadron Structure from the Feynman–Hellmann Theorem
Hadron Structure from the Feynman–Hellmann Theorem
The determination of hadronic form factors at large momentum transfers has been a challenging problem in lattice QCD simulations. Here we show how the Feynman–Hellmann method may be extended to non-forward matrix elements to calculate hadronic form factors in lattice QCD at much higher momenta than...
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Personal Name(s): | Chambers, A. J. (Corresponding author) |
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Dragos, J. / Horsley, R. / Nakamura, Y. / Perlt, H. / Pleiter, Dirk / Rakow, P. E. L. / Schierholz, G. / Schiller, A. / Somfleth, K. / Stüben, H. / Young, R. D. / Zanotti, J. M. | |
Contributing Institute: |
Jülich Supercomputing Center; JSC |
Published in: | Proceedings of Science, LATTICE2016 (2017) S. 168 |
Imprint: |
Trieste
SISSA
2017
|
Physical Description: |
6 p. |
Conference: | 34th annual International Symposium on Lattice Field Theory, Southampton (UK), 2016-07-24 - 2016-07-30 |
Document Type: |
Contribution to a conference proceedings Journal Article |
Research Program: |
Computational Science and Mathematical Methods |
Link: |
Get full text OpenAccess |
Publikationsportal JuSER |
The determination of hadronic form factors at large momentum transfers has been a challenging problem in lattice QCD simulations. Here we show how the Feynman–Hellmann method may be extended to non-forward matrix elements to calculate hadronic form factors in lattice QCD at much higher momenta than previously accessible. We are able to determine the electromagnetic form factors of the pion and nucleon up to approximately 6 GeV2, with results for GE=GM in the proton agreeing well with experimental results. |