Publication Type |
Journal Article |
School or College |
College of Science |
Department |
Physics |
Creator |
DeTar, Carleton |
Other Author |
Billeter, Brian; Osborn, James |
Title |
Topological susceptibility in staggered fermion chiral perturbation theory |
Date |
2004-10 |
Description |
The topological susceptibility of the vacuum in quantum chromodynamics has been simulated numerically using the Asqtad improved staggered fermion formalism. At nonzero lattice spacing, the residual fermion doublers (fermion tastes) in the staggered fermion formalism give contributions to the susceptibility that deviate from conventional continuum chiral perturbation theory. In this brief report, we estimate the taste-breaking artifact and compare it with results of recent simulations, finding that it accounts for roughly half of the scaling violation. |
Type |
Text |
Publisher |
American Physical Society |
Journal Title |
Physical Review D |
Volume |
70 |
Issue |
7 |
DOI |
10.1103/PhysRevD.70.077502 |
citatation_issn |
1550-7998 |
Subject |
Staggered fermions; Chiral perturbation |
Subject LCSH |
Quantum chromodynamics; Lattice gauge theories; Particles (Nuclear physics); Perturbation (Quantum dynamics); Particles (Nuclear physics) -- Chirality |
Language |
eng |
Bibliographic Citation |
Billeter, B., DeTar, C., & Osborn, J. (2004). Topological susceptibility in staggered fermion chiral perturbation theory. Physical Review D, 70(7), 077502. |
Rights Management |
(c) American Physical Society http://dx.doi.org/10.1103/PhysRevD.70.077502 |
Format Medium |
application/pdf |
Format Extent |
102,433 bytes |
Identifier |
ir-main,10267 |
ARK |
ark:/87278/s61r783q |
Setname |
ir_uspace |
ID |
706886 |
Reference URL |
https://collections.lib.utah.edu/ark:/87278/s61r783q |