RT Journal Article
T1 Interpretation of the LHCb P-c (4312)(+) Signal
A1 Fernández Ramírez, César
A1 Pilloni, A.
A1 Albaladejo, M.
A1 Jackura, A.
A1 Mathieu, Vincent
A1 Mikhasenko, M.
A1 Silva Castro, J. A.
A1 Szczepaniak, A. P.
AB 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.
PB American Physical Society
SN 0031-9007
YR 2019
FD 2019-08-29
LK https://hdl.handle.net/20.500.14352/12903
UL https://hdl.handle.net/20.500.14352/12903
LA eng
NO © 2019 American Physical SocietyWe thank Tomasz Skwarnicki for discussions and useful comments on the manuscript. This work was supported by the U.S. Department of Energy Grants No. DE-AC05-06OR23177 and No. DE-FG02-87ER40365, U.S. National Science Foundation Grant No. PHY-1415459, PAPIIT-DGAPA (UNAM, Mexico), Grant No. IA101819, and CONACYT (Mexico) Grants No. 734789, No. 251817, and No. A1-S-21389. V. M. acknowledges support from Comunidad Autonoma de Madrid through Programa de Atraccion de Talento Investigador.
NO National Science Foundation (NSF)
NO Programa de Apoyo a Proyectos de Investigacion e Innovacion Tecnologica (PAPIIT)
NO Universidad Nacional Autonoma de Mexico PAPIIT-DGAPA
NO United States Department of Energy (DOE)
NO Consejo Nacional de Ciencia y Tecnologia (CONACyT)  (Mexico)
NO Comunidad Autonoma de Madrid  Atraccion de Talento Investigador.
DS Docta Complutense
RD 29 abr 2025