The Delta-resonance in a finite volume
| dc.creator | Bernard, Véronique | |
| dc.creator | Meißner, Ulf-G. | |
| dc.creator | Rusetsky, Akaki | |
| dc.date | 2007-02-07 | |
| dc.date.accessioned | 2026-07-07T11:22:05Z | |
| dc.date.available | 2026-07-07T11:22:05Z | |
| dc.description | We study the extraction of Delta-resonance parameters from lattice data for small quark masses, corresponding to the case of an unstable Delta. To this end, we calculate the spectrum of the correlator of two Delta-fields in a finite Euclidian box up-to-and-including O(epsilon^3) in the small scale expansion using infrared regularization. On the basis of our numerical study, we argue that the extraction of the parameters of the Delta-resonance (in particular, of the mass and the pion-nucleon-delta coupling constant) from the measured volume dependence of the lowest energy levels should be feasible. | |
| dc.description | 20 pages, 8 postscript figures | |
| dc.identifier | https://arxiv.org/abs/hep-lat/0702012 | |
| dc.identifier | http://arxiv.org/abs/hep-lat/0702012 | |
| dc.identifier | Nucl.Phys.B788:1-20,2008 | |
| dc.identifier | doi:10.1016/j.nuclphysb.2007.07.030 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/194452 | |
| dc.subject | High Energy Physics - Lattice | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | Nuclear Theory | |
| dc.title | The Delta-resonance in a finite volume | |
| dc.type | text |