2024/02/06 by Natsumi Ikeno, J. M. Dias, Ikeno, Natsumi +5
Computer Science · Physics and Astronomy · #Computational Physics and Python Applications #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions
paper · pdf · doi:10.48550/arxiv.2402.04073
openalex publication_date 2024/02/06 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30
We study the D+ → K0 π+ η reaction where the a0(980) excitation plays a dominant role. We consider mechanisms of external and internal emission at the quark level, hadronize the q q components into two mesons and allow these mesons to undergo final state interaction where the a0(980) state is generated. While the a0(980) production is the dominant term, we also find other terms in the reaction that interfere with this production mode and, through interference with it, lead to a shape of the a0(980) significantly different from the one observed in other experiments, with an apparently much larger width.