Light baryon spectrum using improved interpolating operators

Details Light baryon spectrum using improved interpolating operators Light baryon spectrum using improved interpolating operators

2006-09-29

arxiv.org/abs/hep-lat/0609072v1

PoSLAT2006:197,2006

Physics

High Energy Physics

High Energy Physics - Lattice

7 pages, 3 figures, talk given at Lattice 2006 (spectroscopy)

Scientific paper

Energies for excited light baryons are computed in quenched QCD with a pion mass of 490 MeV. Operators used in the simulations include local operators and the simplest nonlocal operators that have nontrivial orbital structures. All operators are designed with the use of Clebsch-Gordan coefficients of the octahedral group so that they transform irreducibly under the group rotations. Matrices of correlation functions are computed for each irreducible representation, and then the variational method is applied to separate mass eigenstates. We obtained 17 states for isospin 1/2 and 11 states for isospin 3/2 in various spin-parity channels including $J^P=5/2^\pm$. The pattern of the lowest-lying energies from each irrep is discussed. We use anisotropic lattices of volume $24^3\times 64$ with temporal lattice spacing $a_t^{-1}=6.05$ GeV with renormalized anisotropy $\xi=3.0$.

Affiliated with

Also associated with

No associations

Rating

Light baryon spectrum using improved interpolating operators does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Light baryon spectrum using improved interpolating operators, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Light baryon spectrum using improved interpolating operators will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-184383