Brodsky, Stanley J. and Schmidt, Ivan and Yang, Jian-Jun (2004) Nuclear antishadowing in neutrino deep inelastic scattering. PHYSICAL REVIEW D, 70 (11): 116003. ISSN 2470-0010, 2470-0029
Full text not available from this repository. (Request a copy)Abstract
The shadowing and antishadowing of nuclear structure functions in the Gribov-Glauber picture is due, respectively, to the destructive and constructive interference of amplitudes arising from the multiple scattering of quarks in the nucleus. The effective quark-nucleon scattering amplitude includes Pomeron and Odderon contributions from multigluon exchange as well as Reggeon quark-exchange contributions. We show that the coherence of these multiscattering nuclear processes leads to shadowing and antishadowing of the electromagnetic nuclear structure functions in agreement with measurements. This picture leads to substantially different antishadowing for charged and neutral current reactions, thus affecting the extraction of the weak-mixing angle theta(W). We find that part of the anomalous NuTeV result for theta(W) could be due to the nonuniversality of nuclear antishadowing for charged and neutral currents. Detailed measurements of the nuclear dependence of individual quark structure functions are thus needed to establish the distinctive phenomenology of shadowing and antishadowing and to make the NuTeV results definitive.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | DEUTERON FORM-FACTOR; SIN(2) THETA(W); CROSS-SECTIONS; PARTON MODEL; SMALL-X; PHYSICS; NUTEV; ASYMMETRY; SYMMETRY; BEHAVIOR; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 21 Jun 2021 12:45 |
| Last Modified: | 21 Jun 2021 12:45 |
| URI: | https://pred.uni-regensburg.de/id/eprint/36932 |
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