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Observation of an excited state of the Lambda c+ baryon.

T. F. Lin; P. Lebrun; James E Wiss; G. N. Kim; P. H. Kasper; John Perry Cumalat; F. Davenport; Cristina Riccardi; M. S. Nehring; V. Arena; D. Torretta; Sandra Malvezzi; C. Dallapiccola; Paolo Vitulo; S. Sala; M. Vittone; S. Sarwar; P. M. Yager; M. Di Corato; A. E. Kreymer; L. Cinquini; G. Alimonti; D. J. Harding; B. O'Reilly; G. P. Grim; Robert Gardner; J. A. Swiatek; P. L. Frabetti; Fabrizio Fabbri; Gabriele Gianini; D. Buchholz; E. Meroni; S. Cihangir; V. S. Paolone; James R. Wilson; W. D. Shephard; Stefano Bianco; J. F. Ginkel; J. S. Kang; T. Handler; S. Shukla; R. Greene; Luigi Moroni; Stephen A. Gourlay; Senta Greene; A. Zallo; L. Perasso; G. Bellini; D. Claes; J. M. Bishop; L. Garren; J. N. Butler; Z. Y. Wu; H. W.K. Cheung; Daniele Pedrini; B. Caccianiga; Willard Johns; J. F. Filasetta; C. Castoldi; F. Leveraro; A. Sala; Randy Ruchti; P. H. Garbincius; G. R. Blackett; M. Pisharody; Alan D. Lopez; Marco Giammarchi; P. Inzani; N. M. Cason; S. P. Ratti; Paul Sheldon; R. Culbertson; B. G. Cheon; K. Y. Kim; C. J. Kennedy; G. Boca; I. Gaines; D. L. Puseljic; Dario Menasce; B. Gobbi


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  "datePublished": "1994-02-14", 
  "description": "An observation of an excited ${\\mathrm{\\ensuremath{\\Lambda}}}_{\\mathit{c}}^{+\\mathrm{*}}$ baryon decaying to ${\\mathrm{\\ensuremath{\\Lambda}}}_{\\mathit{c}}^{+}$${\\mathrm{\\ensuremath{\\pi}}}^{+}$${\\mathrm{\\ensuremath{\\pi}}}^{\\mathrm{\\ensuremath{-}}}$, with ${\\mathrm{\\ensuremath{\\Lambda}}}_{\\mathit{c}}^{+}$\\ensuremath{\\rightarrow}${\\mathit{pK}}^{\\mathrm{\\ensuremath{-}}}$${\\mathrm{\\ensuremath{\\pi}}}^{+}$, is presented. We reconstruct 39.7\\ifmmode\\pm\\else\\textpm\\fi{}8.7${\\mathrm{\\ensuremath{\\Lambda}}}_{\\mathit{c}}^{+\\mathrm{*}}$ baryons with a mass of 340.4\\ifmmode\\pm\\else\\textpm\\fi{}0.6\\ifmmode\\pm\\else\\textpm\\fi{}0.3 MeV/${\\mathit{c}}^{2}$ above the ${\\mathrm{\\ensuremath{\\Lambda}}}_{\\mathit{c}}^{+}$ mass. The upper limit on the resonant branching ratio is B(${\\mathrm{\\ensuremath{\\Lambda}}}_{\\mathit{c}}^{+\\mathrm{*}}$\\ensuremath{\\rightarrow}${\\mathrm{\\ensuremath{\\Sigma}}}_{\\mathit{c}}$${\\mathrm{\\ensuremath{\\pi}}}^{\\ifmmode\\pm\\else\\textpm\\fi{}}$)/B(${\\mathrm{\\ensuremath{\\Lambda}}}_{\\mathit{c}}^{+\\mathrm{*}}$\\ensuremath{\\rightarrow}${\\mathrm{\\ensuremath{\\Lambda}}}_{\\mathit{c}}^{+}$ ${\\mathrm{\\ensuremath{\\pi}}}^{+}$${\\mathrm{\\ensuremath{\\pi}}}^{\\mathrm{\\ensuremath{-}}}$)36% at the 90% confidence level.", 
  "headline": "Observation of an excited state of the Lambda c+ baryon.", 
  "identifier": "https://doi.org/10.1103/physrevlett.72.961", 
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  "keywords": [
    "General Physics and Astronomy"
  ], 
  "license": "", 
  "name": "Observation of an excited state of the Lambda c+ baryon.", 
  "url": "https://www.openaccessrepository.it/record/140279"
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