Distribution amplitudes of $Σ$ and $Λ$ and their electromagnetic form factors
| dc.creator | Liu, Yong-Lu | |
| dc.creator | Huang, Ming-Qiu | |
| dc.date | 2008-11-12 | |
| dc.date | 2009-03-21 | |
| dc.date.accessioned | 2026-07-07T12:55:17Z | |
| dc.date.available | 2026-07-07T12:55:17Z | |
| dc.description | Based on QCD conformal partial wave expansion to leading order conformal spin accuracy, we present the light-cone distribution amplitudes (DAs) of $Σ$ and $Λ$ baryons up to twist 6. It is concluded that fourteen ndependent DAs are needed to describe the valence three-quark states of the baryons at small transverse separations. The nonperturbative parameters relevant to the DAs are determined within the framework of QCD sum rule method. With the obtained DAs, a simple investigation on the electromagnetic form factors of these baryons are given. The magnetic moments of the baryons are estimated by fitting the magnetic form factor with the dipole formula. | |
| dc.description | 40 pages, 19 figures | |
| dc.identifier | https://arxiv.org/abs/0811.1812 | |
| dc.identifier | http://arxiv.org/abs/0811.1812 | |
| dc.identifier | Nucl.Phys.A821:80-105, 2009 | |
| dc.identifier | doi:10.1016/j.nuclphysa.2009.02.003 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/224207 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Distribution amplitudes of $Σ$ and $Λ$ and their electromagnetic form factors | |
| dc.type | text |