We present preliminary results for the mass spectrum of the nucleon and its low-lying excited states from quenched lattice QCD using the domain wall fermion method which preserves the chiral symmetry at finite lattice cutoff. Definite mass splitting is observed between the nucleon and its parity partner. This splitting grows with decreasing valence quark mass. We also present preliminary data regarding the first positive-parity excited state.
机构:
Brookhaven Natl Lab, RIKEN, BNL Res Ctr, Upton, NY 11973 USAUniv Connecticut, Dept Phys, Storrs, CT 06269 USA
Aoki, Y.
Blum, T.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Connecticut, Dept Phys, Storrs, CT 06269 USA
Brookhaven Natl Lab, RIKEN, BNL Res Ctr, Upton, NY 11973 USAUniv Connecticut, Dept Phys, Storrs, CT 06269 USA
Blum, T.
Lin, H. W.
论文数: 0引用数: 0
h-index: 0
机构:
Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USAUniv Connecticut, Dept Phys, Storrs, CT 06269 USA
Lin, H. W.
Lin, M. F.
论文数: 0引用数: 0
h-index: 0
机构:
MIT, Ctr Theoret Phys, Cambridge, MA 02139 USAUniv Connecticut, Dept Phys, Storrs, CT 06269 USA
Lin, M. F.
Ohta, S.
论文数: 0引用数: 0
h-index: 0
机构:
Brookhaven Natl Lab, RIKEN, BNL Res Ctr, Upton, NY 11973 USA
Natl Lab High Energy Phys, KEK, Inst Particle & Nucl Studies, Tsukuba, Ibaraki 3050801, Japan
Sokendai Grad U Adv Studies, Kanagawa 2400193, JapanUniv Connecticut, Dept Phys, Storrs, CT 06269 USA
Ohta, S.
Sasaki, S.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Tokyo, Dept Phys, Bunkyo Ku, Tokyo 113, JapanUniv Connecticut, Dept Phys, Storrs, CT 06269 USA