TY - JOUR
T1 - Evidence for enhancement of gluon and valence-quark distributions in nuclei from hard lepton-nucleus processes
AU - Frankfurt, L. L.
AU - Strikman, M. I.
AU - Liuti, S.
PY - 1990
Y1 - 1990
N2 - Current data on deep-inelastic processes off nuclei are analyzed by using exact QCD sum rules for the total momentum and baryon charge of nuclei. Evidence for an overall enhancement of the gluon field in heavy nuclei (4%) is found which, combined with the calculation of nuclear shadowing, yields a substantial enhancement of valence-quark and gluon distributions at xS0.1, as well as a suppression of the sea for x0.1. It is also shown that scaling violations lead to a strong decrease of shadowing for the sea at xS0.05. Implications for disentangling the origin of internuclear forces are further discussed.
AB - Current data on deep-inelastic processes off nuclei are analyzed by using exact QCD sum rules for the total momentum and baryon charge of nuclei. Evidence for an overall enhancement of the gluon field in heavy nuclei (4%) is found which, combined with the calculation of nuclear shadowing, yields a substantial enhancement of valence-quark and gluon distributions at xS0.1, as well as a suppression of the sea for x0.1. It is also shown that scaling violations lead to a strong decrease of shadowing for the sea at xS0.05. Implications for disentangling the origin of internuclear forces are further discussed.
UR - http://www.scopus.com/inward/record.url?scp=4243821381&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.65.1725
DO - 10.1103/PhysRevLett.65.1725
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AN - SCOPUS:4243821381
VL - 65
SP - 1725
EP - 1728
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 14
ER -