Magnetic susceptibility of the QCD vacuum
| dc.creator | Kim, Hyun-Chul | |
| dc.creator | Musakhanov, M. | |
| dc.creator | Siddikov, M. | |
| dc.date | 2004-11-12 | |
| dc.date.accessioned | 2026-07-07T03:53:54Z | |
| dc.date.available | 2026-07-07T03:53:54Z | |
| dc.description | We investigate the magnetic susceptibility of the QCD vacuum, based on the instanton vacuum. Starting from the instanton liquid model for the instanton vacuum, we derive the light-quark partition function $Z[V,T,\hat{m}]$ in the presence of the current quark mass $\hat{m}$ as well as the external Abelian vector and tensor fields. We calculate a two-point correlation function relevant for the magnetic susceptibility and derive it beyond the chiral limit. We obtain for the different flavors the following magnetic susceptibility: $χ_{u,d}< iψ_{u,d}^\dagger ψ_{u,d}>_0 \sim 40\sim45 {\rm MeV}$, while $χ_{s}< iψ_s^\dagger ψ_s >_0 \simeq 6\sim 10 {\rm MeV}$ with the quark condensate $<iψ^\dagger ψ>_0$. | |
| dc.description | 13 pages, 2 figures | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0411181 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0411181 | |
| dc.identifier | Phys.Lett. B608 (2005) 95-106 | |
| dc.identifier | doi:10.1016/j.physletb.2004.12.080 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/44022 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Magnetic susceptibility of the QCD vacuum | |
| dc.type | text |