We present an exploratory study for the nonperturbative determination of the coefficient of the script O sign(a) improvement term to the Wilson action, csw. Following the work by Lüscher et al., we impose the PCAC relation as a nonperturbative improvement condition on csw, without, however, using the Schrödinger functional in our calculation.
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Nuclear and High Energy Physics