Journal Article

GSI-2026-00289

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Four-quark scatterings in QCD III

Fu, W.-j. ; Huang, C. (Corresponding author) ; Pawlowski, J. M.GSI* ; Tan, Y.-y. ; Zhou, L.-j.

2025
American Physical Society Ridge, NY

This record in other databases:

Please use a persistent id in citations: doi:10.1103/4sh5-w4yc  doi:10.15120/GSI-2026-00289

Report No.: 2502.14388

Abstract: We study the full infrared dynamics of 2+1 flavor quantum chromodynamics (QCD) with the functional renormalization group approach. We resolve self-consistently the glue dynamics as well as the dynamics of chiral symmetry breaking. The computation hosts no phenomenological parameter or external input. The only ultraviolet input parameters are the physical ones in QCD: the light and strange quark masses. They are adjusted to the physical ratios of the pion and kaon masses, divided by the pion decay constant. The results for other observables of current first-principles computations are in quantitative agreement with the physical ones. This work completes the series of papers, initiated and furthered in [SciPost Phys. 14, 069 (2023); SciPost Phys. 17, 148 (2024)], on dynamical chiral symmetry breaking and the emergence of mesonic bound states within the functional renormalization group. As a first application we discuss the formation of light mesonic bound states. Among other applications such as the phase structure of QCD, the current work paves the way for studying QCD parton distribution functions within the functional renormalization group approach to first-principles QCD.

Note: "Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP 3."

---

Contributing Institute(s):

1. ExtreMe Matter Institute, EMMI (EXM)

Research Program(s):

1. 612 - Cosmic Matter in the Laboratory (POF4-612) (POF4-612)
2. DFG project G:(GEPRIS)273811115 - SFB 1225: Isolierte Quantensysteme und Universalität unter extremen Bedingungen (ISOQUANT) (273811115) (273811115)
3. DFG project G:(GEPRIS)390900948 - EXC 2181: STRUKTUREN: Emergenz in Natur, Mathematik und komplexen Daten (390900948) (390900948)

Experiment(s):

1. no experiment theory work (theory)

Appears in the scientific report 2025

---

Database coverage:
; ; ; ; Clarivate Analytics Master Journal List ; Current Contents - Electronics and Telecommunications Collection ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF >= 5 ; JCR ; SCOAP3 sponsored Journal ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

---