Heavy baryon spectroscopy in the QCD string model
| dc.creator | Grach, I. L. | |
| dc.creator | Narodetskii, I. M. | |
| dc.creator | Trusov, M. A. | |
| dc.creator | Veselov, A. I. | |
| dc.date | 2008-11-13 | |
| dc.date.accessioned | 2026-07-07T10:18:04Z | |
| dc.date.available | 2026-07-07T10:18:04Z | |
| dc.description | QCD string model formulated in the framework of the Field Correlator Method (FCM) in QCD is employed to calculate the masses of $Σ_c$, $Ξ_c$ and recently observed at Tevatron $Σ_b$, $Ξ_b$ baryons and their orbital excitations. The auxiliary field formalism allows one to write a simple local form of the effective Hamiltonian for the three quark system, which comprises both confinement and relativistic effects, and contains only universal parameters: the string tension $σ$, the strong coupling constant $α_s$, and the bare (current) quark masses $m_i$. We calculate the hyperfine splitting with account of the both perturbative and non--perturbative spin-spin forces between quarks in a baryon. For the orbital excitations we estimate the string correction for the confinement potential - the leading correction to the contribution of the proper inertia of the rotating string. This correction lowers the masses of the P-states by 50 MeV. We find our numerical results to be in good agreement with experimental data. | |
| dc.description | Contribution at PANIC08, Eilat, Israel, November 2008 | |
| dc.identifier | https://arxiv.org/abs/0811.2184 | |
| dc.identifier | http://arxiv.org/abs/0811.2184 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/174070 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Heavy baryon spectroscopy in the QCD string model | |
| dc.type | text |