Journal article Open Access

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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  <dc:creator>T. F. Lin</dc:creator>
  <dc:creator>P. Lebrun</dc:creator>
  <dc:creator>James E Wiss</dc:creator>
  <dc:creator>G. N. Kim</dc:creator>
  <dc:creator>P. H. Kasper</dc:creator>
  <dc:creator>John Perry Cumalat</dc:creator>
  <dc:creator>F. Davenport</dc:creator>
  <dc:creator>Cristina Riccardi</dc:creator>
  <dc:creator>M. S. Nehring</dc:creator>
  <dc:creator>V. Arena</dc:creator>
  <dc:creator>D. Torretta</dc:creator>
  <dc:creator>Sandra Malvezzi</dc:creator>
  <dc:creator>C. Dallapiccola</dc:creator>
  <dc:creator>Paolo Vitulo</dc:creator>
  <dc:creator>S. Sala</dc:creator>
  <dc:creator>M. Vittone</dc:creator>
  <dc:creator>S. Sarwar</dc:creator>
  <dc:creator>P. M. Yager</dc:creator>
  <dc:creator>M. Di Corato</dc:creator>
  <dc:creator>A. E. Kreymer</dc:creator>
  <dc:creator>L. Cinquini</dc:creator>
  <dc:creator>G. Alimonti</dc:creator>
  <dc:creator>D. J. Harding</dc:creator>
  <dc:creator>B. O'Reilly</dc:creator>
  <dc:creator>G. P. Grim</dc:creator>
  <dc:creator>Robert Gardner</dc:creator>
  <dc:creator>J. A. Swiatek</dc:creator>
  <dc:creator>P. L. Frabetti</dc:creator>
  <dc:creator>Fabrizio Fabbri</dc:creator>
  <dc:creator>Gabriele Gianini</dc:creator>
  <dc:creator>D. Buchholz</dc:creator>
  <dc:creator>E. Meroni</dc:creator>
  <dc:creator>S. Cihangir</dc:creator>
  <dc:creator>V. S. Paolone</dc:creator>
  <dc:creator>James R. Wilson</dc:creator>
  <dc:creator>W. D. Shephard</dc:creator>
  <dc:creator>Stefano Bianco</dc:creator>
  <dc:creator>J. F. Ginkel</dc:creator>
  <dc:creator>J. S. Kang</dc:creator>
  <dc:creator>T. Handler</dc:creator>
  <dc:creator>S. Shukla</dc:creator>
  <dc:creator>R. Greene</dc:creator>
  <dc:creator>Luigi Moroni</dc:creator>
  <dc:creator>Stephen A. Gourlay</dc:creator>
  <dc:creator>Senta Greene</dc:creator>
  <dc:creator>A. Zallo</dc:creator>
  <dc:creator>L. Perasso</dc:creator>
  <dc:creator>G. Bellini</dc:creator>
  <dc:creator>D. Claes</dc:creator>
  <dc:creator>J. M. Bishop</dc:creator>
  <dc:creator>L. Garren</dc:creator>
  <dc:creator>J. N. Butler</dc:creator>
  <dc:creator>Z. Y. Wu</dc:creator>
  <dc:creator>H. W.K. Cheung</dc:creator>
  <dc:creator>Daniele Pedrini</dc:creator>
  <dc:creator>B. Caccianiga</dc:creator>
  <dc:creator>Willard Johns</dc:creator>
  <dc:creator>J. F. Filasetta</dc:creator>
  <dc:creator>C. Castoldi</dc:creator>
  <dc:creator>F. Leveraro</dc:creator>
  <dc:creator>A. Sala</dc:creator>
  <dc:creator>Randy Ruchti</dc:creator>
  <dc:creator>P. H. Garbincius</dc:creator>
  <dc:creator>G. R. Blackett</dc:creator>
  <dc:creator>M. Pisharody</dc:creator>
  <dc:creator>Alan D. Lopez</dc:creator>
  <dc:creator>Marco Giammarchi</dc:creator>
  <dc:creator>P. Inzani</dc:creator>
  <dc:creator>N. M. Cason</dc:creator>
  <dc:creator>S. P. Ratti</dc:creator>
  <dc:creator>Paul Sheldon</dc:creator>
  <dc:creator>R. Culbertson</dc:creator>
  <dc:creator>B. G. Cheon</dc:creator>
  <dc:creator>K. Y. Kim</dc:creator>
  <dc:creator>C. J. Kennedy</dc:creator>
  <dc:creator>G. Boca</dc:creator>
  <dc:creator>I. Gaines</dc:creator>
  <dc:creator>D. L. Puseljic</dc:creator>
  <dc:creator>Dario Menasce</dc:creator>
  <dc:creator>B. Gobbi</dc:creator>
  <dc:date>1994-02-14</dc:date>
  <dc: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.</dc:description>
  <dc:identifier>https://www.openaccessrepository.it/record/140279</dc:identifier>
  <dc:identifier>10.1103/physrevlett.72.961</dc:identifier>
  <dc:language>eng</dc:language>
  <dc:relation>url:https://www.openaccessrepository.it/communities/itmirror</dc:relation>
  <dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
  <dc:subject>General Physics and Astronomy</dc:subject>
  <dc:title>Observation of an excited state of the Lambda c+ baryon.</dc:title>
  <dc:type>info:eu-repo/semantics/article</dc:type>
  <dc:type>publication-article</dc:type>
</oai_dc:dc>
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Publication date:
February 14, 1994
DOI:
10.1103/physrevlett.72.961

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