D⁰ D⁰ π⁺ mass distribution in the production of the T_cc exotic state

2021/08/05 by A. Feijoo, Feijoo, A., W. H. Liang +3 · 3 citations
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.2108.02730

openalex publication_date 2021/08/05 · openalex created_date 2022/07/25 · openalex updated_date 2026/07/28

Abstract

We perform a unitary coupled channel study of the interaction of the D^*+ D⁰, D^*0 D⁺ channels and find a state barely bound, very close to isospin I=0. We take the experimental mass as input and obtain the width of the state and the D⁰ D⁰ π⁺ mass distribution. When the mass of the T_cc state quoted in the experimental paper from raw data is used, the width obtained is of the order of the 80 \rm keV, small compared to the value given in that work. Yet, when the mass obtained in an analysis of the data considering the experimental resolution is taken, the width obtained is about 43 \rm keV and both the width and the D⁰ D⁰ π⁺ mass distribution are in remarkable agreement with the results obtained in that latter analysis.

Cited by

• The recoil corrections, correlation functions and possible double-strange hadronic molecules
• Melting down a tetraquark: D^∗D^(∗) interactions and T_cc(3875)⁺ in a hot environment
• Signatures of Odd-Parity s-wave Ξ^* States in Femtoscopic Correlation Functions

Related

• Possible signal of an exotic I=1, J=2 state in the B → D^*-D⁺K⁺ reaction
• Quark mass dependence of the T_cc(3875)⁺ pole
• Composite nature of the T_cc state
• Some remarks on compositeness of T⁺_cc
• A Study of T_cc(3875)⁺ Nature : Compact v.s. Molecule