Exotic Tetraquark Mesons in Large-Nc Limit: an Unexpected Great Surprise
Institute for High Energy Physics, Austrian Academy of Sciences,
Nikolsdorfergasse 18, A-1050 Vienna,
2 D. V. Skobeltsyn Institute of Nuclear Physics, M. V. Lomonosov Moscow State University, 119991 Moscow, Russia
3 Faculty of Physics, University of Vienna, Boltzmanngasse 5, A-1090 Vienna, Austria
4 Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, 91405 Orsay Cedex, France
Published online: 14 November 2018
Two-ordinary-meson scattering in large-Nc QCD implies consistency criteria for intermediate-tetraquark contributions. Their fulfilment at Nc-leading order constrains the nature of the spectrum of genuinely exotic tetraquark states.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.