I=2 pi-pi Scattering from Fully-Dynamical Mixed-Action Lattice QCD
| dc.creator | Beane, Silas R. | |
| dc.creator | Bedaque, Paulo F. | |
| dc.creator | Orginos, Kostas | |
| dc.creator | Savage, Martin J. | |
| dc.date | 2005-06-10 | |
| dc.date | 2006-03-09 | |
| dc.date.accessioned | 2026-07-07T11:04:36Z | |
| dc.date.available | 2026-07-07T11:04:36Z | |
| dc.description | We compute the I=2 pi-pi scattering length at pion masses of m_pi ~ 294, 348 and 484 MeV in fully-dynamical lattice QCD using Luscher's finite-volume method. The calculation is performed with domain-wall valence-quark propagators on asqtad-improved MILC configurations with staggered sea quarks at a single lattice spacing, b ~ 0.125 fm. Chiral perturbation theory is used to perform the extrapolation of the scattering length from lattice quark masses down to the physical value, and we find m_pi a_2 = -0.0426 +- 0.0006 +- 0.0003 +- 0.0018, in good agreement with experiment. The I=2 pi-pi scattering phase shift is calculated to be delta = -43 +- 10 +- 5 degrees at |p| ~ 544 MeV for m_pi ~ 484 MeV. | |
| dc.description | 16 pages, 4 figures | |
| dc.identifier | https://arxiv.org/abs/hep-lat/0506013 | |
| dc.identifier | http://arxiv.org/abs/hep-lat/0506013 | |
| dc.identifier | Phys.Rev.D73:054503,2006 | |
| dc.identifier | doi:10.1103/PhysRevD.73.054503 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/188945 | |
| dc.subject | High Energy Physics - Lattice | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | Nuclear Theory | |
| dc.title | I=2 pi-pi Scattering from Fully-Dynamical Mixed-Action Lattice QCD | |
| dc.type | text |