Testing the hadro-quarkonium model on the lattice

Autor:	Knechtli, Francesco, Alberti, Maurizio, Bali, Gunnar S., Collins, Sara, Moir, Graham, Söldner, Wolfgang
Rok vydání:	2016
Předmět:	High Energy Physics - Lattice High Energy Physics - Phenomenology
Druh dokumentu:	Working Paper
Popis:	Recently the LHCb experiment found evidence for the existence of two exotic resonances consisting of $c\bar{c}uud$ quarks. Among the possible interpretations is the hadro-charmonium model, in which charmonium is bound "within" a light hadron. We test this idea on CLS $N_f$=2+1 lattices using the static formulation for the heavy quarks. We find that the static potential is modified by the presence of a hadron such that it becomes more attractive. The effect is of the order of a few MeV. Comment: 7 pages, 6 figures. Proceedings from the 34th Annual International Symposium on Lattice Field Theory, 24-30 July 2016, University of Southampton, UK
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1611.00912 Zobrazit plný text záznamu View this record from Arxiv