TY - JOUR
T1 - Color fluctuation approximation for multiple interactions in leading twist theory of nuclear shadowing
AU - Guzey, V.
AU - Strikman, M.
N1 - Funding Information:
Authored by Jefferson Science Associates, LLC, under US DOE Contract No. DE-AC05-06OR23177 . The US Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce this manuscript for US Government purposes. Supported by DOE grant under contract DE-FG02-93ER40771 .
PY - 2010/4/12
Y1 - 2010/4/12
N2 - The leading twist theory of nuclear shadowing predicts the shadowing correction to nuclear parton distributions at small x by connecting it to the leading twist hard diffraction in electron-nucleon scattering. The uncertainties of the predictions are related to the shadowing effects resulting from the interaction of the hard probe with N ≥ 3 nucleons. We argue that the pattern of hard diffraction observed at HERA allows one to reduce these uncertainties. We develop a new approach to the treatment of these multiple interactions, which is based on the concept of the color fluctuations and accounts for the presence of both point-like and hadron-like configurations in the virtual photon wave function. Using the developed framework, we update our predictions for the leading twist nuclear shadowing in nuclear parton distributions of heavy nuclei at small x.
AB - The leading twist theory of nuclear shadowing predicts the shadowing correction to nuclear parton distributions at small x by connecting it to the leading twist hard diffraction in electron-nucleon scattering. The uncertainties of the predictions are related to the shadowing effects resulting from the interaction of the hard probe with N ≥ 3 nucleons. We argue that the pattern of hard diffraction observed at HERA allows one to reduce these uncertainties. We develop a new approach to the treatment of these multiple interactions, which is based on the concept of the color fluctuations and accounts for the presence of both point-like and hadron-like configurations in the virtual photon wave function. Using the developed framework, we update our predictions for the leading twist nuclear shadowing in nuclear parton distributions of heavy nuclei at small x.
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U2 - 10.1016/j.physletb.2010.03.008
DO - 10.1016/j.physletb.2010.03.008
M3 - Article
AN - SCOPUS:77949912526
SN - 0370-2693
VL - 687
SP - 167
EP - 173
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
IS - 2-3
ER -