Measurement of natural widths of ∑c0 and ∑c++ baryons

  • J. M. Link
  • , M. M. Reyes
  • , P. M. Yager
  • , J. C. Anjos
  • , I. Bediaga
  • , C. Göbel
  • , J. Magnin
  • , A. Massafferri
  • , J. M. De Miranda
  • , I. M. Pepe
  • , A. C. Dos Reis
  • , S. Carrillo
  • , E. Casimiro
  • , E. Cuautle
  • , A. Sánchez-Hernández
  • , C. Uribe
  • , F. Vázquez
  • , L. Agostino
  • , L. Cinquini
  • , J. P. Cumalat
  • B. O'Reilly, J. E. Ramirez, I. Segoni, J. N. Butler, H. W.K. Cheung, G. Chiodini, I. Gaines, P. H. Garbincius, L. A. Garren, E. Gottschalk, P. H. Kasper, A. E. Kreymer, R. Kutschke, S. Bianco, F. L. Fabbri, A. Zallo, C. Cawlfield, D. Y. Kim, A. Rahimi, J. Wiss

Research output: Contribution to journalArticlepeer-review

Abstract

In this Letter we present a measurement of the natural widths of ∑c0 and ∑c++. Using data from the FOCUS experiment, we find Γ (∑c0) = 1.55-0.37+0.41 ± 0.38 MeV/c2 and Γ (∑c++) = 2.05-0.38+0.41 ±0.38 MeV/c2. The first errors are statistical, the second systematic. These results are obtained with a sample of 913 ∑c0 → Λc+π- decays and 1110 ∑c++ → Λc+π+ decays. These results are compared with recent theoretical predictions.

Original languageEnglish (US)
Pages (from-to)205-210
Number of pages6
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume525
Issue number3-4
DOIs
StatePublished - Jan 24 2002

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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