Progress in meson-meson scattering at large N_c

2024/01/10 by Jorge Baeza-Ballesteros, Baeza-Ballesteros, Jorge, Pilar Hernández +3
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Lattice (hep-lat) #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.2401.05177

openalex publication_date 2024/01/10 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01

Abstract

We study the large N_c scaling of meson-meson scattering amplitudes in a theory with N_f=4 degenerate quark flavors. We focus on two different scattering channels, one having the same quantum numbers as some recently found tetraquark states at LHCb. Using Lüscher's formalism, we study the N_c dependence of the scattering phase shift and investigate the presence of exotic resonances in the scattering amplitude. We analyze the impact of including two-vector-meson and tetraquark-like operators to extract the finite-volume energies.

Related

• Results on meson-meson scattering at large N_c
• The ππ scattering amplitude at large N_c
• Scattering of mesons and emergence of tetraquarks in two-dimensional QCD
• Tetraquark Properties at Large N_{\rm c}
• ππ scattering at Large N_c