Hyperon-Nulceon Scattering from Fully-Dynamical Lattice QCD

Journal Article · Mon Oct 01 04:00:00 EDT 2007 · Nucl.Phys.A

DOI:https://doi.org/10.1016/j.nuclphysa.2007.07.006· OSTI ID:896666

Beane, Silas; Bedaque, Paulo; Luu, Thomas; Orginos, Konstantinos; Pallante, Elizabetta; Parreno, Assumpta; Savage, Martin

We present results of the first fully-dynamical lattice QCD determination of hyperon-nucleon scattering. One s-wave phase shift was determined for n{Lambda} scattering in both spin-channels at pion masses of 350, 490, and 590 MeV, and for n{Sigma}^- scattering in both spin channels at pion masses of 490, and 590 MeV. The calculations were performed with domain-wall valence quarks on dynamical, staggered gauge configurations with a lattice spacing of b ~0.125 fm.

• Research Organization: Thomas Jefferson National Accelerator Facility, Newport News, VA
• Sponsoring Organization: USDOE - Office of Energy Research (ER)
• DOE Contract Number: AC05-06OR23177; AC05-84ER40150
• OSTI ID: 896666
• Report Number(s): JLAB-THY-06-600; DOE/OR/23177-0012
• Journal Information: Nucl.Phys.A, Journal Name: Nucl.Phys.A Journal Issue: 1 Vol. 794
• Country of Publication: United States
• Language: English