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Title: Simplified test of universality in lattice QCD
Authors: Adams, David H.
Keywords: Physical and Mathematical Sciences
Issue Date: 2004
Source: Adams, D. H. (2004). Simplified Test of Universality in Lattice QCD. Physical Review Letters, 92(16), 162002.
Series/Report no.: Physical review letters
Abstract: A simplified test of universality in lattice QCD is performed by analytically evaluating the continuous Euclidean time limits of various lattice fermion determinants, both with and without a Wilson term to lift the fermion doubling on the Euclidean time axis, and comparing them with each other and with the zeta-regularized fermion determinant in the continuous time–lattice space setting. The determinant relations expected from universality considerations are found to be violated by a certain gauge field-dependent factor; i.e., we uncover a “universality anomaly.” The physical significance, or lack thereof, of this factor is a delicate question that remains to be settled.
DOI: 10.1103/PhysRevLett.92.162002
Rights: © 2004 The American Physical Society. This paper was published in Physical Review Letters and is made available as an electronic reprint (preprint) with permission of The American Physical Society. The paper can be found at the following official DOI:  One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Fulltext Permission: open
Fulltext Availability: With Fulltext
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