OZI violating eight-quark interactions as a thermometer for chiral transitions
| dc.creator | Osipov, A. A. | |
| dc.creator | Hiller, B. | |
| dc.creator | Moreira, J. | |
| dc.creator | Blin, A. H. | |
| dc.date | 2007-09-21 | |
| dc.date.accessioned | 2026-07-07T08:51:47Z | |
| dc.date.available | 2026-07-07T08:51:47Z | |
| dc.description | This work is a follow-up of our recent observation that in the SU(3) flavor limit with vanishing current quark masses the temperature for the chiral transition is substantially reduced by adding eight-quark interactions to the Nambu - Jona-Lasinio Lagrangian with U_A(1) breaking. Here we generalize the case to realistic light and strange quark masses and confirm our prior result. Additionally, we demonstrate that depending on the strength of OZI violating eight-quark interactions, the system undergoes either a rapid crossover or a first order phase transition. The meson mass spectra of the low lying pseudoscalars and scalars at T=0 are not sensitive to the difference in the parameter settings that correspond to these two alternatives, except for the singlet-octet mixing scalar channels, mainly the sigma meson. | |
| dc.description | LaTeX, 5 pages, 3 figures | |
| dc.identifier | https://arxiv.org/abs/0709.3507 | |
| dc.identifier | http://arxiv.org/abs/0709.3507 | |
| dc.identifier | Phys.Lett.B659:270-274,2008 | |
| dc.identifier | doi:10.1016/j.physletb.2007.11.007 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/145056 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | OZI violating eight-quark interactions as a thermometer for chiral transitions | |
| dc.type | text |