New insights into the doubly charmed exotic mesons

2023/11/28 by Guo, Di, Yang, Qin-He, Dai, Ling-Yun +1 · 1 citation
#FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Nuclear Theory (nucl-th)

paper · doi:10.48550/arxiv.2311.16938

Abstract

Using effective Lagrangians constrained by the heavy quark spin symmetry and chiral symmetry, for the light quarks, we analyze the D⁰ D⁰π⁺, D⁰D⁰π⁰ and D⁰D^*0 invariant mass spectra. Performing a simultaneous analysis of the doubly charmed and charm-anti-charm states gives further insights into the nature of the T⁺_cc and χ⁰_c1(3872), exotic hadrons. It is confirmed that both states should lie below their respective DD^*/DD^* thresholds. Also, the contributions of the triangle and box diagrams are negligible.

Cited by

• Hadronic decay D⁺→π⁺ηη and the a₀(980) and f₀(1370) contributions

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