axial vector mesons 1COMPASS experiment 1coupled-channel analysis 1three-body scattering 1triangle singularity 1
From the 1 of 2 linked papers with an AI index.
2 papers
hep-ph2026
The in a Unitary Coupled-Channel Three-Body Approach
Ajay S. Sakthivasan, Yuchuan Feng, Michael Döring +1
The paper develops a unitary three‑body coupled‑channel model that incorporates triangle‑singularity effects to describe the narrow enhancement near 1.42 GeV observed in COMPASS da…
hep-lat2026
Form factors of the meson from effective field theory and the lattice
Ulf-G. MeiÃner, Akaki Rusetsky, Ajay S. Sakthivasan +2
The calculation of resonance form factors in effective field theory as well as on the lattice is a highly challenging task. In a recent paper, we proposed a novel method based on t…