Work

Gauge Theory Bootstrap

Year: 2024

Type: article

Abstract: We propose the gauge theory bootstrap, a method to compute the pion S matrix that describes the low-energy physics of the strong interaction and other similar gauge theories. The phase shifts of the S0, P1, and S2 waves obtained are in good agreement with experimental results. The only numerical inputs are the quark mass m_{q}, the QCD scale Λ_{QCD}, the pion mass m_{π}, and the pion decay constant f_{π} without any other experimental data. We make use of the form-factor bootstrap recently proposed by Karateev, Kuhn, and Penedones together with a finite energy version of the Shifman-Veinshtein-Zakharov sum rules.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.133.191601

Authors: Yifei He, Martin Kruczenski

Institutions: École Normale Supérieure - PSL, Laboratoire de Physique de l'Ecole Normale Supérieure, Purdue University West Lafayette

Language: English

Topic: Quantum Chromodynamics and Particle Interactions

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,750

Funders: U.S. Department of Energy, National Centres of Competence in Research SwissMAP, Fermilab