https://doi.org/10.1051/epjconf/201715803004
Associated production of J/ψ and 
mesons and the prospects to observe a new hypothetical tetraquark state
P.N. Lebedev Institute of Physics, 53 Lenin Avenue, Moscow 119991, Russia
* e-mail: baranov@sci.lebedev.ru
Published online: 24 October 2017
We propose a new mechanism for prompt simultaneous production of J/ψ and 
mesons in high energy hadronic collisions. The process is considered as a perturbative production of 
mesons 
followed by a long-distance final state interaction that rearranges the quarks to form J/ψ and 
mesons. Passing from 
configuration to J/ψ+
configuration may proceed via a hypothetical resonance state, the tetraquark. The goal of this work is to examine whether the respective cross section is large enough to encourage a direct search for the tetraquark at the LHC conditions (yes), and whether this hypothesis can help to explain recent D0 data without assigning an unusually low value to σeff in the double parton scattering mechanism (no).
© The authors, published by EDP Sciences, 2017
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
