Diquarks in the color--flavor locked phase of dense quark matter
| dc.creator | Ebert, D. | |
| dc.creator | Klimenko, K. G. | |
| dc.date | 2006-11-30 | |
| dc.date | 2007-01-23 | |
| dc.date.accessioned | 2026-07-07T11:22:15Z | |
| dc.date.available | 2026-07-07T11:22:15Z | |
| dc.description | Diquark excitations of dense quark matter are considered in the framework of the Nambu -- Jona-Lasinio model with three types of massless quarks in the presense of a quark number chemical potential $μ$. We investigate the effective action of meson- and diquark fields at sufficiently high values of $μ$, where the color--flavor locked (CFL) phase is realized, and prove the existence of NG-bosons in the sector of pseudoscalar diquarks. In the sector of scalar diquarks an additional NG-boson is found, corresponding to the spontaneous breaking of the U(1)$_B$ baryon symmetry in the CFL phase. Finally, the existence of massive scalar and pseudoscalar diquark excitations is demonstrated. | |
| dc.description | 10 pages, 2 figures; version accepted for publication in PRD | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0611385 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0611385 | |
| dc.identifier | Phys.Rev.D75:045005,2007 | |
| dc.identifier | doi:10.1103/PhysRevD.75.045005 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/194506 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Diquarks in the color--flavor locked phase of dense quark matter | |
| dc.type | text |