Nonperturbatively Improved Hadron Spectroscopy Near the Continuum Limit
نویسنده
چکیده
Simulations in full QCD are extremely slow, and are still carried out far from the continuum limit. A possible solution for this problem is the use of improved actions, for which the simulation gives the continuum limit at higher values of the cutoff a, reducing computational costs. An important step in the improvement program was taken recently by the Alpha collaboration, with the nonperturbative determination of the coefficient cSW in the clover action [1,2]. We present here the results of our study of hadron spectroscopy using the clover-improved Wilson action (see [1] for notation)
منابع مشابه
Effects of Nonperturbative Improvement in Quenched Hadron Spectroscopy
with cSW determined nonperturbatively by the Alpha collaboration. (For details see [1,2] and references thereof.) Our runs consist of 104 quenched configurations, at β = 6.2 and volume 24 × 48. We consider 7 values of the hopping parameter κ, and all their nondegenerate flavor combinations. We run at the improved value cSW = 1.61375065 and also, for comparison, at cSW = 0. We have considered po...
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