Baryons in Holographic QCD
| dc.creator | Nawa, Kanabu | |
| dc.creator | Suganuma, Hideo | |
| dc.creator | Kojo, Toru | |
| dc.date | 2006-12-18 | |
| dc.date | 2007-04-26 | |
| dc.date.accessioned | 2026-07-07T11:23:27Z | |
| dc.date.available | 2026-07-07T11:23:27Z | |
| dc.description | We study the baryon in holographic QCD with $D4/D8/\bar{D8}$ multi-$D$ brane system. In holographic QCD, the baryon appears as a topologically non-trivial chiral soliton in a four-dimensional effective theory of mesons. We call this topological soliton as Brane-induced Skyrmion. Some review of $D4/D8/\bar{D8}$ holographic QCD is presented from the viewpoints of recent hadron physics and phenomenologies. Four-dimensional effective theory with pions and $ρ$ mesons is uniquely derived from the non-abelian Dirac-Born-Infeld (DBI) action of $D8$ brane with $D4$ supergravity background, without small amplitude expansion of meson fields to discuss chiral solitons. For the hedgehog configuration of pion and $ρ$-meson fields, we derive the energy functional and the Euler-Lagrange equation of Brane-induced Skyrmion from the meson effective action induced by holographic QCD. Performing the numerical calculation, we obtain the pion profile $F(r)$ and the $ρ$-meson profile $G(r)$ of the Brane-induced Skyrmion, and estimate its total energy, energy density distribution, and root-mean-square radius. These results are compared with the experimental quantities of baryons and also with the profiles of standard Skyrmion without $ρ$ mesons. We analyze interaction terms of pions and $ρ$ mesons in Brane-induced Skyrmion, and consider the role of $ρ$-meson component appearing in baryons. | |
| dc.description | 28 pages, 11 figures | |
| dc.identifier | https://arxiv.org/abs/hep-th/0612187 | |
| dc.identifier | http://arxiv.org/abs/hep-th/0612187 | |
| dc.identifier | Phys.Rev.D75:086003,2007 | |
| dc.identifier | doi:10.1103/PhysRevD.75.086003 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/194893 | |
| dc.subject | High Energy Physics - Theory | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Baryons in Holographic QCD | |
| dc.type | text |