A new flavoured lattice Schwinger model preserves exact axial symmetry and realizes the chiral anomaly on the lattice for a single flavour via helical edge states in a topological insulator.
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Proposes jet correlation observables to discriminate QCD instanton processes from perturbative hard scattering in LHC pp collisions, with energy constraints derived from instanton size and separation calculations in 2+1 flavor QCD.
VNABI adds a non-total-derivative term to the topological charge density whose space-time integral is proved to vanish by Wu-Yang arguments and is shown numerically to approach zero under gradient flow on SU(2) lattices.
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Flavoured Lattice Schwinger Model with Chiral Anomaly
A new flavoured lattice Schwinger model preserves exact axial symmetry and realizes the chiral anomaly on the lattice for a single flavour via helical edge states in a topological insulator.
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Probing QCD instantons using jet correlation observables in proton-proton collisions at the LHC
Proposes jet correlation observables to discriminate QCD instanton processes from perturbative hard scattering in LHC pp collisions, with energy constraints derived from instanton size and separation calculations in 2+1 flavor QCD.
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Violation of non-Abelian Bianchi identity and QCD topology
VNABI adds a non-total-derivative term to the topological charge density whose space-time integral is proved to vanish by Wu-Yang arguments and is shown numerically to approach zero under gradient flow on SU(2) lattices.