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Interpretation of the LHCb Pc(4312) Signal

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arxiv 1904.10021 v2 pith:JSILQFMZ submitted 2019-04-22 hep-ph hep-ex

JPAC Collaboration: C. Fernandez-Ramirez , A. Pilloni , M. Albaladejo , A. Jackura , V. Mathieu , M. Mikhasenko , J.A. Silva-Castro , A.P. Szczepaniak This is my paper · ORCID
classification hep-phhep-ex
keywords amplitudelhcbsignalanalysisanalyticattractiveboundchannel
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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 Pc(4312) peak. By exploring several amplitude parametrizations, we find evidence for the attractive effect of the Sigma_c+ D0bar channel, which is not strong enough, however, to form a bound state.

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Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Effects of closely spaced thresholds on line shapes with near-threshold enhancement

    hep-ph 2025-06 conditional novelty 4.0 of 10

    A three-channel separable potential fit to LHCb data suggests P_c(4312)+ is a virtual state below the Sigma_c^+ Dbar0 threshold, consistent with JPAC.

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