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Two-dimensional massless quantum chromodynamics approaches conformal behavior

Published on:

21 December 2023

Primary Category:

High Energy Physics - Lattice

Paper Authors:

Nikhil Karthik,

Rajamani Narayanan,

Sruthi A. Narayanan

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Key Details

Two-dimensional QCD expected to be conformal in infrared

Lattice study uses exact chiral symmetry to access full flavor content

Eigenvalues and scalar mesons show flow from ultraviolet to infrared conformality

Conserved currents match WZW model and are invariant under flow

Infrared scalar meson amplitudes approach flavor-independent values

AI generated summary

Two-dimensional massless quantum chromodynamics approaches conformal behavior

This paper studies two-dimensional quantum chromodynamics (QCD) with multiple colors and massless quarks. Using lattice simulations, it shows the theory's infrared behavior matches predictions from a Wess-Zumino-Witten model. Eigenvalues and meson correlators exhibit an ultraviolet-to-infrared flow, with conserved currents unchanged but scalar mesons becoming independent of quark flavors.

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