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Type: Conference paper
Title: Directly calculating the glue component of the nucleon in lattice QCD
Author: Howson, T.L.
Horsley, R.
Kamleh, W.
Nakamura, Y.
Perlt, H.
Rakow, P.E.L.
Schierholz, G.
Stueben, H.
Young, R.D.
Zanotti, J.M.
Citation: EPJ Web of Conferences, 2020 / Doglioni, C., Kim, D., Stewart, G.A., Silvestris, L., Jackson, P., Kamleh, W. (ed./s), vol.245, pp.06031-1-06031-7
Publisher: EDP Sciences
Publisher Place: online
Issue Date: 2020
Series/Report no.: EPJ Web of Conferences
ISSN: 2100-014X
Conference Name: International Conference on Computing in High Energy and Nuclear Physics (CHEP) (4 Nov 2019 - 8 Nov 2019 : Adelaide, Australia)
Editor: Doglioni, C.
Kim, D.
Stewart, G.A.
Silvestris, L.
Jackson, P.
Kamleh, W.
Statement of
T. L. Howson, R. Horsley, W. Kamleh, Y. Nakamura, H. Perlt, P. E. L. Rakow ... et al.
Abstract: We are investigating the direct determination and non-perturbative renormalisation of gluon matrix elements. Such quantities are sensitive to ultra– violet fluctuations, and are in general statistically noisy. To obtain statistically significant results, we extend an earlier application of the Feynman–Hellmann theorem to gluonic matrix elements to calculate a renormalisation factor in the <jats:italic>RI – MOM</jats:italic> scheme, in the quenched case. This work demonstrates that the Feynman–Hellmann method is capable of providing a feasible option for calculating gluon quantities.
Rights: © The Authors, published by EDP Sciences, 2020. This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
DOI: 10.1051/epjconf/202024506031
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