Article ID Journal Published Year Pages File Type
8187554 Physics Letters B 2013 5 Pages PDF
Abstract
Recently three experiments reported a discovery of manifestly exotic Zc+(3900) in the decay to J/ψπ+, while J and P are experimentally unknown. We search for this state on the lattice by simulating the channel with JPC=1+− and I=1, and we do not find a candidate for Zc+(3900). Instead, we only find discrete scattering states DD¯⁎ and J/ψπ, which inevitably have to be present in a dynamical QCD. The possible reasons for not finding Zc+ may be that its quantum numbers are not 1+− or that the employed interpolating fields are not diverse enough. Simulations with additional types of interpolators will be needed to reach a more definite conclusion.
Related Topics
Physical Sciences and Engineering Physics and Astronomy Nuclear and High Energy Physics
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