Chiral symmetry breaking in continuum QCD

By Mario Mitter, Jan M. Pawlowski, Nils Strodthoff. 2014

159 citations recorded by the source corpus.

We present a quantitative analysis of chiral symmetry breaking in two-flavour continuum QCD in the quenched limit. The theory is set-up at perturbative momenta, where asymptotic freedom leads to precise results. The evolution of QCD towards the hadronic phase is achieved by means of dynamical hadronisation in the non-perturbative functional renormalisation group approach. We use a vertex expansion scheme based on gauge-invariant operators and discuss its convergence properties and the remaining systematic errors. In particular we present results for the quark propagator, the full tensor structure and momentum dependence of the quark-gluon vertex, and the four-fermi scatterings.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/1cad85f1ae5125d0b8f04ce5e31cc84f9adc455e

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In Nuclear and High Energy Physics

1. Markus Q. Huber
2. C. Fischer
3. Jan M. Pawlowski
4. A. Eichhorn
5. W. Metzner
6. M. Tissier
7. N. Dupuis
8. N. Wschebor

Citations in the corpus

• The nonperturbative functional renormalization group and its applications (2020, methodology): “This work, together with corresponding ones for quenched QCD [718], unquenched QCD, [713] as well finite temperature YangMills theory, [719, 720] and three-dimensional Yang-Mills theory [721] constitute the technically most advanced FRG-QCD computations including the nonperturbative infrared regime ”
• Nonperturbative properties of Yang–Mills theories (2018, methodology): “It was also used for QCD and Yang-Mills theory [24, 65, 67, 71, 137, 137, 151, 152, 169, 171–192], the Thirring model [193] and for calculations of spectral functions in the O(N) model [194].”
• Baryons as relativistic three-quark bound states (2016, result): “Modern truncations also include numerical solutions for the three- and four-point functions [209, 215, 216] whose results compare well with those from lattice QCD [199, 223–227].”