Non-perturbative running of renormalization constants from correlators in coordinate space using step scaling
نویسندگان
چکیده
منابع مشابه
Non Perturbative Renormalization in Coordinate Space ∗ †
We present an exploratory study of a gauge-invariant non-perturbative renormalization technique. The renormal-ization conditions are imposed on correlation functions of composite operators in coordinate space on the lattice. Numerical results for bilinears obtained with overlap and O(a)-improved Wilson fermions are presented. The measurement of the quark condensate is also discussed. Renormaliz...
متن کاملNon-perturbative Renormalization Constants using Ward Identities
Tanmoy Bhattacharya, a Shailesh Chandrasekharan, Rajan Gupta, Weonjong Lee, and Stephen Sharpe c,d MS B-285, Los Alamos National Lab, Los Alamos, New Mexico 87545, USA Department of Physics, Duke University, Durham, North Carolina 27705, USA Physics Department, University of Washington, Seattle, Washington 98195, USA Center for Computational Physics, University of Tsukuba, Tsukuba, Ibaraki, 305...
متن کاملFinite-Size Scaling from the non-perturbative Renormalization Group
The phase diagram of QCD at finite temperature and density and the existence of a critical point are currently very actively researched topics. Although tremendous progress has been made, in the case of two light quark flavors even the order of the phase transition at zero density is still under discussion. Finite-size scaling is a powerful method for the analysis of phase transitions in lattic...
متن کاملNon-perturbative renormalization of QCD
In these lectures, we discuss different types of renormalization problems in QCD and their non-perturbative solution in the framework of the lattice formulation. In particular the recursive finite size methods to compute the scale-dependence of renormalized quantities is explained. An important ingredient in the practical applications is the Schrödinger functional. It is introduced and its reno...
متن کاملNon-perturbative non-locality: V ±A correlators in euclidean position space
Using an OPE modification, which takes non-perturbative non-locality into account, the difference and sum of vector and axial-vector correlators are evaluated in euclidean position space. For distances up to 0.8 fm the calculated behavior is close to the instanton liquid result and the ALEPH data, in contrast to the implications of the conventional OPE. The determination of the momentum or dist...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nuclear Physics B
سال: 2016
ISSN: 0550-3213
DOI: 10.1016/j.nuclphysb.2016.09.015