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Type: Journal article
Title: Charge symmetry breaking in parton distribution functions from lattice QCD
Author: Horsley, R.
Nakamura, Y.
Pleiter, D.
Rakow, P.
Schierholz, G.
Stüben, H.
Thomas, A.
Winter, F.
Young, R.
Zanotti, J.
Citation: Physical Review. D. Particles, Fields, Gravitation and Cosmology, 2011; 83(5):051501-1-051501-5
Publisher: American Physical Soc
Issue Date: 2011
ISSN: 1550-7998
Statement of
R. Horsley, Y. Nakamura, D. Pleiter, P. E. L. Rakow, G. Schierholz, H. Stüben, A. W. Thomas, F. Winter, R. D. Young, and J. M. Zanotti(CSSM and QCDSF/UKQCD Collaborations)
Abstract: By determining the quark momentum fractions of the octet baryons from Nf=2+1 lattice simulations, we are able to predict the degree of charge symmetry violation in the parton distribution functions of the nucleon. This is of importance, not only as a probe of our understanding of the nonperturbative structure of the proton, but also because such a violation constrains the accuracy of global fits to parton distribution functions and hence the accuracy with which, for example, cross sections at the LHC can be predicted. A violation of charge symmetry may also be critical in cases where symmetries are used to guide the search for physics beyond the standard model.
Rights: © 2011 American Physical Society
RMID: 0020104810
DOI: 10.1103/PhysRevD.83.051501
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Appears in Collections:Physics publications

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