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. CumalatB. 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 journalArticle


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
Issue number3-4
StatePublished - Jan 24 2002

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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    Link, J. M., Reyes, M. M., Yager, P. M., Anjos, J. C., Bediaga, I., Göbel, C., Magnin, J., Massafferri, A., De Miranda, J. M., Pepe, I. M., Dos Reis, A. C., Carrillo, S., Casimiro, E., Cuautle, E., Sánchez-Hernández, A., Uribe, C., Vázquez, F., Agostino, L., Cinquini, L., ... Wiss, J. (2002). Measurement of natural widths of ∑c0 and ∑c++ baryons. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 525(3-4), 205-210.