Many avatars of the Wilson fermion: a perturbative analysis

Journal of High Energy Physics - 2013
Abhishek Chowdhury1, A. Harindranath1, Jyotirmoy Maiti2, Santanu Mondal1
1Theory Division, Saha Institute of Nuclear Physics, Kolkata, India
2Department of Physics, Barasat Government College, Barasat, India

Tóm tắt

We explore different branches of the fermion doublers with Wilson fermion in perturbation theory, in the context of additive mass renormalization and chiral anomaly, and show that by appropriately averaging over suitably chosen branches one can reduce cut-off artifacts. Comparing the central branch with all other branches, we find that the central branch, among all the avatars of the Wilson fermion, is the most suitable candidate for exploring near conformal lattice field theories.

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Journal of High Energy Physics

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