(D^+ \to K_s^0 \pi^+ \eta\) reaction and \(a_0(980)^+\)

We study the \(D^+ \to \bar K^0 \pi^+ \eta\) reaction where the \(a_0(980)\) excitation plays a dominant role. We consider mechanisms of external and internal emission at the quark level, hadronize the \(q \bar q\) components into two mesons and allow these mesons to undergo final state interaction...

Full description

Saved in:
Bibliographic Details
Published in:arXiv.org 2024-02
Main Authors: Ikeno, Natsumi, Dias, Jorgivan M, Wei-Hong, Liang, Oset, Eulogio
Format: Article
Language:English
Subjects:
Mesons
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We study the \(D^+ \to \bar K^0 \pi^+ \eta\) reaction where the \(a_0(980)\) excitation plays a dominant role. We consider mechanisms of external and internal emission at the quark level, hadronize the \(q \bar q\) components into two mesons and allow these mesons to undergo final state interaction where the \(a_0(980)\) state is generated. While the \(a_0(980)\) 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 \(a_0(980)\) significantly different from the one observed in other experiments, with an apparently much larger width.
ISSN:2331-8422