Doubly heavy $QQ$ tetraquarks

Abstract

With the discovery of a doubly charmed ${\Xi }_{cc}$ baryon a somewhat forgotten issue of tetraquarks containing two heavy and two light (anti) quarks, ${\mathcal{T}}_{QQ}$, triggered theorist's interest. We discuss quark model estimates of ${\mathcal{T}}_{QQ}$ masses and such objects including a model where the light sector is treated as a soliton. We show that this model has different large $N_c$ limit than other approaches.

6 pages, 2 figures, talk at the conference Excited QCD, Schladming, Austria, January 30 - February 3, 2019. In v2 minor typos corrected, references added

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Cited by in corpus (2)

• Doubly Heavy Tetraquarks in the Chiral Quark Soliton Model
• Landscape of heavy baryons from the perspective of the chiral quark-soliton model