{ "id": "hep-ph/9609361", "version": "v1", "published": "1996-09-16T10:40:22.000Z", "updated": "1996-09-16T10:40:22.000Z", "title": "On the $Q^2$ dependence of nuclear structure functions", "authors": [ "D. Indumathi" ], "comment": "11 pages LaTeX, with 3 figures of encapsulated postscript files", "journal": "Z.Phys. C76 (1997) 91-97", "categories": [ "hep-ph" ], "abstract": "The recent high statistics NMC data on the Tin to Carbon structure function ratio seems to indicate, for the first time, a significant $Q^2$ dependence, especially at small values of Bjorken $x$, $x < 0.05$, and $Q^2 > 1 GeV^2$. Pure leading twist, perturbative QCD--based predictions, which are consistent with the free nucleon data, yield a fairly flat ratio with little or no $Q^2$ dependence. In view of this seeming contradiction, we re-examine the applicability of such a perturbative model to nuclear structure functions in such a kinematical regime. We find that the model is consistent with all data, within experimental errors, without any need for introducing additional higher twist contributions. The model correctly reproduces the $Q^2$ dependence of the Carbon structure function as well. We also critically examine the $Q^2$ dependence of the corresponding spin dependent structure functions.", "revisions": [ { "version": "v1", "updated": "1996-09-16T10:40:22.000Z" } ], "analyses": { "keywords": [ "nuclear structure functions", "dependence", "carbon structure function ratio", "corresponding spin dependent structure functions", "high statistics nmc data" ], "tags": [ "journal article" ], "publication": { "doi": "10.1007/s002880050531" }, "note": { "typesetting": "LaTeX", "pages": 11, "language": "en", "license": "arXiv", "status": "editable", "inspire": 423403, "adsabs": "1996hep.ph....9361I" } } }