Author/Authors :
M G?ckeler، نويسنده , , R Horsley، نويسنده , , H. Perlt، نويسنده , , P Rakow، نويسنده , , G Schierholz، نويسنده , , A Schiller، نويسنده , , P Stephenson، نويسنده ,
Abstract :
We compute the light hadron mass spectrum in quenched lattice QCD at β = 6.0 using the Sheikholeslami-Wohlert fermionic action. The calculation is done for several choices of the coefficient cSW, including cSW = 0 and the recently proposed optimal value cSW = 1.769. We find that the individual masses change by up to 30% under O(a) improvement.