{ "id": "hep-ph/0107138", "version": "v1", "published": "2001-07-12T15:14:31.000Z", "updated": "2001-07-12T15:14:31.000Z", "title": "Soft-Gluon Resummation for the Fragmentation of Light and Heavy Quarks at Large x", "authors": [ "M. Cacciari", "S. Catani" ], "comment": "37 pages, Latex, axodraw, epsfig, 11 figures", "journal": "Nucl.Phys.B617:253-290,2001", "doi": "10.1016/S0550-3213(01)00469-2", "categories": [ "hep-ph" ], "abstract": "We present a QCD study of fragmentation processes for light and heavy quarks in the semi-inclusive region of large x. Large logarithmic terms, due to soft-gluon radiation, are evaluated and resummed to all perturbative orders in the QCD coupling alpha_s. Complete analytical results to next-to-leading logarithmic accuracy are given for one-particle and two-particle inclusive distributions in e+e- annihilation and DIS. Factorization of parton radiation at low transverse momenta is exploited to identify the universal (process-independent) perturbative fragmentation function that controls heavy-quark processes, and to perform next-to-leading logarithmic resummation of its soft-gluon contributions. To gauge the quantitative impact of resummation, we perform numerical studies of light- and heavy-quark fragmentation in e+e- collisions.", "revisions": [ { "version": "v1", "updated": "2001-07-12T15:14:31.000Z" } ], "analyses": { "subjects": [ "12.38.-t", "12.38.Cy", "13.87.Fh" ], "keywords": [ "heavy quarks", "soft-gluon resummation", "perform next-to-leading logarithmic resummation", "low transverse momenta", "controls heavy-quark processes" ], "tags": [ "journal article" ], "publication": { "publisher": "Elsevier", "journal": "Nucl. Phys. B" }, "note": { "typesetting": "LaTeX", "pages": 37, "language": "en", "license": "arXiv", "status": "editable", "inspire": 559922 } } }