English

Doubly heavy $QQ$ tetraquarks

High Energy Physics - Phenomenology 2022-05-09 v2

Abstract

With the discovery of a doubly charmed Ξcc\Xi_{cc} baryon a somewhat forgotten issue of tetraquarks containing two heavy and two light (anti) quarks, TQQ{\cal T}_{QQ}, triggered theorist's interest. We discuss quark model estimates of TQQ{\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 NcN_c limit than other approaches.

Keywords

Cite

@article{arxiv.1904.02676,
  title  = {Doubly heavy $QQ$ tetraquarks},
  author = {Michal Praszalowicz},
  journal= {arXiv preprint arXiv:1904.02676},
  year   = {2022}
}

Comments

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

R2 v1 2026-06-23T08:29:35.124Z