Erratum: Interactions and Excitations of Non-Abelian Vortices (Physical Review Letters)

Physical Review Letters 65:5 (1990) 668

Authors:

MG Alford, K Benson, S Coleman, J March-Russell, F Wilczek

Interactions and excitations of non-Abelian vortices.

Phys Rev Lett 64:14 (1990) 1632-1635

Authors:

MG Alford, K Benson, S Coleman, J March-Russell, F Wilczek

Hadron spectrum in QCD at 6g2=5.6

Physical Review D 42:11 (1990) 3794-3818

Authors:

KM Bitar, R Edwards, UM Heller, AD Kennedy, W Liu, TA Degrand, S Gottlieb, A Krasnitz, JB Kogut, RL Renken, MC Ogilvie, P Rossi, DK Sinclair, KC Wang, RL Sugar, M Teper, D Toussaint

Abstract:

We have carried out a simulation of QCD using the hybrid-molecular-dynamics algorithm with two flavors of staggered quarks. The spectrum was calculated for 6g2=5.6 and dynamical quark masses amq=0.025 and 0.01. Lattice sizes of 124, 123×24, and 164 were used to generate the gauge configurations. Hadron propagators were calculated with both staggered and Wilson quarks on doubled or quadrupled latices. Finite-size effects are visible on the smaller lattices. Some improvement in the to-nucleon mass ratio and chiral symmetry is seen as compared to previous calculations, but, as in most lattice calculations, the proton-to mass ratio remains larger than in the real world and the proton splitting is too small. © 1990 The American Physical Society.

Hadron spectrum with staggered dynamical quarks

Nuclear Physics B (Proceedings Supplements) 17:C (1990) 404-407

Authors:

KM Bitar, AD Kennedy, W Liu, TA DeGrand, S Gottlieb, JB Kogut, RL Renken, MC Ogilvie, P Rossi, DK Sinclair, RL Sugar, M Teper, D Toussaint

Abstract:

We describe a recent calculation of the hadron spectrum with two flavors of staggered dynamical quarks with a gauge coupling 6/g2 = 5.60 and quark masses of 0.025 and 0.01. The gauge fields were generated using the hybrid algorithm on a 124 lattice that was doubled or quadrupled to calculate hadron propagators. © 1990.

Hadronic spectroscopy with Wilson valence quarks

Nuclear Physics B (Proceedings Supplements) 17:C (1990) 400-403

Authors:

KM Bitar, AD Kennedy, W Liu, TA DeGrand, S Gottlieb, JB Kogut, RL Renken, MC Ogilvie, P Rossi, DK Sinclair, KC Wang, RL Sugar, M Teper, D Toussaint

Abstract:

We present preliminary results on hadronic spectrum measurements by the High Energy Monte Carlo Grand Challenge (HEMCGC) collaboration. The simulation, on a 124 lattice, uses the hybrid molecular dynamics algorithm with two flavors of staggered fermions at two quark mass values and 6/g2 = 5.6. This measurement uses Wilson valence quarks at three values of the hopping parameter on a lattice that is doubled in the time direction. Our work allows a comparative study of these two types of lattice fermions at the parameters used, and provides a check on whether the continuum limit has been reached. The results exhibit the correct trends as the chiral limit is approached. © 1990.