Neutron-Deuteron System and Photon Polarization Parameter at Thermal Neutron Energies
| dc.creator | Sadeghi, H. | |
| dc.date | 2007-04-28 | |
| dc.date.accessioned | 2026-07-07T10:20:19Z | |
| dc.date.available | 2026-07-07T10:20:19Z | |
| dc.description | Effective Field Theory(EFT) is, the unique, model independent and systematic low-energy version of QCD for processes involving momenta below the pion mass. A low-energy photo-nuclear observable in three-body systems, photon polarization parameter at thermal neutron energies is calculated by using pionless EFT up to next-to-next to leading order(N$^2$LO). In order to make a comparative study of this model, we compared our results for photon polarization parameter with the realistic Argonne $v_{18}$ two-nucleon and Urbana IX or Tucson-Melbourne three-nucleon interactions. Three-body currents give small but significant contributions to some of the observables in the neutron-deuteron radiative capture cross section at thermal neutron energies. In this formalism the three-nucleon forces are needed up to N$^2$LO for cut-off independent results. Our result converges order by order in low energy expansion and also cut-off independent at this order. | |
| dc.description | 10 pages, 3 figures, 2 tables | |
| dc.identifier | https://arxiv.org/abs/0704.3793 | |
| dc.identifier | http://arxiv.org/abs/0704.3793 | |
| dc.identifier | Phys.Rev.C75:044002,2007 | |
| dc.identifier | doi:10.1103/PhysRevC.75.044002 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/174807 | |
| dc.subject | Nuclear Theory | |
| dc.title | Neutron-Deuteron System and Photon Polarization Parameter at Thermal Neutron Energies | |
| dc.type | text |