{ "id": "1303.7214", "version": "v4", "published": "2013-03-28T19:22:44.000Z", "updated": "2015-11-18T11:49:10.000Z", "title": "Glasma Evolution and Bose-Einstein Condensation with Elastic and Inelastic Collisions", "authors": [ "Xu-Guang Huang", "Jinfeng Liao" ], "comment": "V4:34 pages, 12 figures, matches published version", "journal": "Phys. Rev. D 91, 116012 (2015)", "doi": "10.1103/PhysRevD.91.116012", "categories": [ "nucl-th", "hep-ph", "hep-th" ], "abstract": "In this paper we investigate the role of inelastic collisions in the kinetic evolution of a highly overpopulated gluon system starting from Glasma-type initial condition. Using the Gunion-Bertsch formula we derive the inelastic collision kernel under the collinear and small angle approximations. With both numerics and analytic analysis, we show that the inelastic process has two effects: globally changing (mostly reducing) the total particle number, while locally at small momentum regime always filling up the infrared modes extremely quickly. This latter effect is found to significantly speed up the emergence of a local thermal distribution in the infrared regime with vanishing local \"chemical potential\" and thus catalyze the onset of dynamical Bose-Einstein Condensation to occur faster (as compared with the purely elastic case) in the overpopulated Glasma.", "revisions": [ { "version": "v3", "updated": "2014-02-08T08:12:26.000Z", "comment": "V3:Fig.1 corrected. V2: extended to 34 pages, 5 new figures included; add new section 3.1; new discussion on the evolution of condensate; references updated", "journal": null, "doi": null }, { "version": "v4", "updated": "2015-11-18T11:49:10.000Z" } ], "analyses": { "subjects": [ "11.10.Wx", "11.15.Ha" ], "keywords": [ "bose-einstein condensation", "glasma evolution", "overpopulated gluon system starting", "inelastic collision kernel", "glasma-type initial condition" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Physical Review D", "year": 2015, "month": "Jun", "volume": 91, "number": 11, "pages": 116012 }, "note": { "typesetting": "TeX", "pages": 34, "language": "en", "license": "arXiv", "status": "editable", "inspire": 1225807, "adsabs": "2015PhRvD..91k6012H" } } }