Magnetic moment of the pentaquark $Θ^+(1540)$ as diquark-diquark-antiquark state with QCD sum rules
| dc.creator | Wang, Zhi-Gang | |
| dc.creator | Wan, Shao-Long | |
| dc.creator | Yang, Wei-Min | |
| dc.date | 2005-03-01 | |
| dc.date | 2005-06-27 | |
| dc.date.accessioned | 2026-07-07T12:24:59Z | |
| dc.date.available | 2026-07-07T12:24:59Z | |
| dc.description | In this article, we study the magnetic moment of the pentaquark state $ Θ^+(1540)$ as diquark-diquark-antiquark ($[ud][ud]\bar{s}$) state with the QCD sum rules in the external weak electromagnetic field (EFSR) and the light-cone QCD sum rules (LCSR) respectively. The numerical results indicate the magnetic moment is about $μ_{Θ^+}=-(0.11\pm 0.02)μ_N$ for the EFSR and $μ_{Θ^+}\approx-(0.1-0.5)μ_N$ for the LCSR. As the values obtained from the EFSR are more stable than the corresponding ones from the LCSR, $μ_{Θ^+}=-(0.11\pm 0.02)μ_N$ is more reliable. | |
| dc.description | 17 pages, 4 figures, unifing hep-ph/0503007 with hep-ph/0503073 into one article, input parameters changed slightly, add more discussions | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0503007 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0503007 | |
| dc.identifier | Eur.Phys.J.C45:201-209,2006 | |
| dc.identifier | doi:10.1140/epjc/s2005-02400-1 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/214491 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Magnetic moment of the pentaquark $Θ^+(1540)$ as diquark-diquark-antiquark state with QCD sum rules | |
| dc.type | text |