%0 Journal Article
%A Fernández Ramírez, César
%A Pilloni, A.
%A Albaladejo, M.
%A Jackura, A.
%A Mathieu, Vincent
%A Mikhasenko, M.
%A Silva Castro, J. A.
%A Szczepaniak, A. P.
%T Interpretation of the LHCb P-c (4312)(+) Signal
%D 2019
%@ 0031-9007
%U https://hdl.handle.net/20.500.14352/12903
%X We study the nature of the new signal reported by LHCb in the J/psi p spectrum. Based on the S-matrix principles, we perform a minimum-bias analysis of the underlying reaction amplitude, focusing on the analytic properties that can be related to the microscopic origin of the P-c(4312)(+) peak. By exploring several amplitude parametrizations, we find evidence for the attractive effect of the Sigma(+)(c)(D) over bar (0) channel, which is not strong enough, however, to form a bound state.
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