منابع مشابه
Fermion Determinants 2003
It is recommended that lattice QCD representations of the fermion determinant, including the discretization of the Dirac operator, be checked in the continuum limit against known QED determinant results. Recent work on the massive QED fermion determinant in two dimensions is reviewed. A feasible approach to the four-dimensional QED determinant with O(2) × O(3) symmetric background fields is bri...
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We find that fermion determinants are not generally positive in a recent class of constructions with explicit lattice supersymmetry. These involve an orbifold of supersymmetric matrix models, and have as their target (continuum) theory (2,2) 2-dimensional super-Yang-Mills. The fermion determinant is shown to be identically zero for all boson configurations due to the existence of a zeromode fer...
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Without internal quark loops such basic phenomena as color charge screening and fast quark fragmentation into hadrons cannot be formulated. Accordingly, the fermion determinant is one of the central quantities in any ab initio lattice QCD calculation that will confront experiment. It is proposed to use analytic results for fermion determinants in QCD and QED as a check on extrapolated lattice f...
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In the context of the Grand Unified MSSM, we investigate the fermion mass matrices at GUT scale. We note that from the experimental mass pattern the determinants of the Yukawa matrices at this scale can be unified with good precision. Taking the unification o determinants as an hypothesis, it gives two model independent predictions that in the MSSM turns out to determine an appropriate value fo...
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ژورنال
عنوان ژورنال: International Journal of Modern Physics A
سال: 2002
ISSN: 0217-751X,1793-656X
DOI: 10.1142/s0217751x02010339