Exotic Tetraquark Mesons in Large-Nc Limit: an Unexpected Great Surprise.

Authors :: Bruno, G.E.
Chiodini, G.
Creanza, D.M.
Colangelo, P.
Corianò, C.
De Fazio, F.
Nappi, E.
Lucha, Wolfgang
Melikhov, Dmitri
Sazdjian, Hagop
Source :: EPJ Web of Conferences; 2018, Vol. 192, pN.PAG-N.PAG, 5p
Publication Year :: 2018
Abstract: Two-ordinary-meson scattering in large-N<subscript>c</subscript> QCD implies consistency criteria for intermediate-tetraquark contributions. Their fulfilment at N<subscript>c</subscript>-leading order constrains the nature of the spectrum of genuinely exotic tetraquark states. [ABSTRACT FROM AUTHOR]