Journal
PHYSICS LETTERS B
Volume 602, Issue 1-2, Pages 67-72Publisher
ELSEVIER
DOI: 10.1016/j.physletb.2004.09.052
Keywords
sigma meson; light flavor sea quarks; meson cloud model; meson exchange model
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We take into account the sigma meson cloud effect in the meson cloud model to calculate the distributions of light flavor sea quarks in the proton. Our calculation gives a better description of the data for d(x)/u(x). We also provide a picture that the probability of finding a physical proton in a Fock state \Nomega> is reasonable small with a smaller cutoff A,. (C) 2004 Elsevier B.V. All rights reserved.
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