{ "id": "hep-ph/0001095", "version": "v2", "published": "2000-01-12T15:00:03.000Z", "updated": "2000-02-10T16:14:21.000Z", "title": "Masses of the Goldstone modes in the CFL phase of QCD at finite density", "authors": [ "Cristina Manuel", "Michel H. G. Tytgat" ], "comment": "15 pages, 5 figures; Discussion of quark mass effects at very large densities amended, references added", "journal": "Phys.Lett. B479 (2000) 190-200", "doi": "10.1016/S0370-2693(00)00331-2", "categories": [ "hep-ph" ], "abstract": "We construct the U_L(3) x U_R(3) effective lagrangian which encodes the dynamics of the low energy pseudoscalar excitations in the Color-Flavor-Locking superconducting phase of QCD at finite quark density. We include the effects of instanton-induced interactions and study the mass pattern of the pseudoscalar mesons. A tentative comparison with the analytical estimate for the gap suggests that some of these low energy momentum modes are not stable for moderate values of the quark chemical potential.", "revisions": [ { "version": "v2", "updated": "2000-02-10T16:14:21.000Z" } ], "analyses": { "keywords": [ "cfl phase", "finite density", "goldstone modes", "low energy momentum modes", "low energy pseudoscalar excitations" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 15, "language": "en", "license": "arXiv", "status": "editable", "inspire": 522955 } } }