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arXiv · 1904.02676

Doubly heavy $QQ$ tetraquarks

Michal Praszalowicz
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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, ${\cal T}_{QQ}$, triggered theorist's interest. We discuss quark model estimates of ${\cal T}_{QQ}$ 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.

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Michal Praszalowicz. 2019-04-04. Doubly heavy $QQ$ tetraquarks. https://doi.org/10.5506/aphyspolbsupp.13.103

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