I review and improve on how two-index SU(N) gauge-fermion theories help access salient information about the large N vacuum and spectrum of QCD, super Yang Mills and meson-meson scattering. The interplay with recent lattice simulations will be employed to deduce the size of 1/N2 corrections. Through the meson-meson scattering analysis I will honor Steven Weinberg's memory by showing how two-index extrapolations naturally accommodate the appearance of tetraquarks states crucial to unitarize meson-meson scattering at low energies.
Two-index SU(N) theories from one flavor QCD to Steven Weinberg's ππ scattering legacy / Sannino, F.. - In: NUCLEAR PHYSICS. B. - ISSN 0550-3213. - 1002:(2024). [10.1016/j.nuclphysb.2024.116546]
Two-index SU(N) theories from one flavor QCD to Steven Weinberg's ππ scattering legacy
Sannino F.
Writing – Original Draft Preparation
2024
Abstract
I review and improve on how two-index SU(N) gauge-fermion theories help access salient information about the large N vacuum and spectrum of QCD, super Yang Mills and meson-meson scattering. The interplay with recent lattice simulations will be employed to deduce the size of 1/N2 corrections. Through the meson-meson scattering analysis I will honor Steven Weinberg's memory by showing how two-index extrapolations naturally accommodate the appearance of tetraquarks states crucial to unitarize meson-meson scattering at low energies.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
