On the spectra of scalar mesons from HQCD models
| dc.creator | Mintakevich, Oded | |
| dc.creator | Sonnenschein, Jacob | |
| dc.date | 2008-06-01 | |
| dc.date.accessioned | 2026-07-07T11:51:18Z | |
| dc.date.available | 2026-07-07T11:51:18Z | |
| dc.description | We determine the holographic spectra of scalar mesons from the fluctuations of the embedding of flavor D-brane probes in HQCD models. The models we consider include a generalization of the Sakai Sugimoto model at zero temperature and at the "high-temperature intermediate phase", where the system is in a deconfining phase while admitting chiral symmetry breaking and a non-critical 6d model at zero temperature. All these models are based on backgrounds associated with near extremal N_c D4 branes and a set of N_f<<N_c flavor probe branes that admit geometrical chiral symmetry breaking. We point out that the spectra of these models include a 0^{--} branch which does not show up in nature. At zero temperature we found that the masses of the mesons M_n depend on the "constituent quark mass" parameter m^c_q and on the excitation number n as M_n^2 m^c_q and M^2_n n^{1.7} for the ten dimensional case and as M_n m^c_q and M_n n^{0.75} in the non-critical case. At the high temperature intermediate phase we detect a decrease of the masses of low spin mesons as a function of the temperature similar to holographic vector mesons and to lattice calculations. | |
| dc.description | 22 pages, 12 figures | |
| dc.identifier | https://arxiv.org/abs/0806.0152 | |
| dc.identifier | http://arxiv.org/abs/0806.0152 | |
| dc.identifier | JHEP0808:082,2008 | |
| dc.identifier | doi:10.1088/1126-6708/2008/08/082 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/203854 | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | On the spectra of scalar mesons from HQCD models | |
| dc.type | text |