Quark mass dependence of doubly heavy tetraquark binding

2024/09/17 by Parrott, W. G., Colquhoun, B., Francis, A. +3
#FOS: Physical sciences #High Energy Physics - Lattice (hep-lat) #High Energy Physics - Phenomenology (hep-ph)

paper · doi:10.48550/arxiv.2409.11477

Abstract

The existence of bound doubly heavy tetraquark states was confirmed by the recent LHCb discovery of the doubly charmed T_cc, less than 1 MeV below the meson pair threshold. Others states with two heavy (bottom or charm) quarks could also be bound, perhaps more deeply. Here we discuss our previous work, and the improvements in our current, updated analysis of various heavy-heavy-light-light tetraquark candidates, including the light and heavy quark mass dependence of the binding.

Related

• Investigation on the stabilities of doubly heavy tetraquark states
• Spectroscopy and decays of the fully-heavy tetraquarks
• Doubly-heavy tetraquark bound states and resonances
• Exploring doubly-heavy tetraquarks in constituent-quark-model based meson-meson coupled-channels approach
• Bridging doubly heavy tetraquark mass spectrum with heavy baryons utilizing heavy antiquark-diquark symmetry