What is the right formalism to search for resonances? II. The pentaquark chain

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dc.contributor.authorPilloni, A.
dc.contributor.authorNys, J.
dc.contributor.authorMikhasenko, M.
dc.contributor.authorAlbaladejo, M.
dc.contributor.authorFernández-Ramírez, C.
dc.contributor.authorJackura, A.
dc.contributor.authorMathieu, Vincent
dc.contributor.authorSherrill, N.
dc.contributor.authorSkwarnicki, T.
dc.contributor.authorSzczepaniak, Adam P
dc.date.accessioned2025-02-20T16:21:14Z
dc.date.available2025-02-20T16:21:14Z
dc.date.issued2018-09-08
dc.description.abstractWe discuss the differences between several partial-wave analysis formalisms used in the construction of three-body decay amplitudes involving fermions. Specifically, we consider the decay $\Lambda _b \rightarrow \psi \,p K^-$, where the hidden charm pentaquark signal has been reported. We analyze the analytical properties of the amplitudes and separate kinematical and dynamical singularities. The result is an amplitude with the minimal energy dependence compatible with the S-matrix principles.
dc.identifier.citationPilloni, A., et al. "What is the right formalism to search for resonances? II. The pentaquark chain." European Physical Journal C: Particles and Fields, vol. C78, no. 9, pp. 727, 2018-9-8, https://doi.org/10.1140/epjc/s10052-018-6177-2.
dc.identifier.otherBRITE 4004
dc.identifier.urihttps://hdl.handle.net/2022/30610
dc.language.isoen
dc.relation.isversionofhttps://doi.org/10.1140/epjc/s10052-018-6177-2
dc.relation.isversionofhttps://link.springer.com/content/pdf/10.1140%2Fepjc%2Fs10052-018-6177-2.pdf
dc.relation.journalEuropean Physical Journal C: Particles and Fields
dc.titleWhat is the right formalism to search for resonances? II. The pentaquark chain

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