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https://hdl.handle.net/2440/74119
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Type: | Journal article |
Title: | Charge symmetry breaking in spin-dependent parton distributions and the Bjorken sum rule |
Author: | Cloet, I. Horsley, R. Londergan, J. Nakamura, Y. Pleiter, D. Rakow, P. Schierholz, G. Stuben, H. Thomas, A. Winter, F. Young, R. Zanotti, J. |
Citation: | Physics Letters B: Nuclear Physics and Particle Physics, 2012; 714(1):97-102 |
Publisher: | Elsevier Science BV |
Issue Date: | 2012 |
ISSN: | 0370-2693 |
Statement of Responsibility: | I.C. Cloët, R. Horsley, J.T. Londergan, Y. Nakamura, D. Pleiter, P.E.L. Rakow, G. Schierholz, Stüben, A.W. Thomas, F. Winter, R.D. Young, J.M. Zanotti |
Abstract: | We present the first determination of charge symmetry violation (CSV) in the spin-dependent parton distribution functions of the nucleon. This is done by determining the first two Mellin moments of the spin-dependent parton distribution functions of the octet baryons from N f=2+1 lattice simulations. This exploratory work is performed using a single value of the lattice spacing and volume. The results are compared with predictions from quark models of nucleon structure. We discuss the contribution of partonic spin CSV to the Bjorken sum rule, which is important because the CSV contributions represent the only partonic corrections to the Bjorken sum rule. © 2012 Elsevier B.V. |
Keywords: | Nucleon Spin-dependent quark distribution functions Lattice Charge symmetry breaking |
Rights: | © 2012 Elsevier B.V. All rights reserved |
DOI: | 10.1016/j.physletb.2012.06.041 |
Grant ID: | http://purl.org/au-research/grants/arc/FL0992247 http://purl.org/au-research/grants/arc/FT100100005 http://purl.org/au-research/grants/arc/DP110101265 |
Published version: | http://dx.doi.org/10.1016/j.physletb.2012.06.041 |
Appears in Collections: | Aurora harvest 4 Physics publications |
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