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Higher baryon resonances in carbon-carbon collisions at 4.2 GeV/c per nucleon

Authors:	D?Krpi? S?Drndarevi? J?Ili? Email author" target="_blank">G??koro Email author I?Pi?uri? S?Backovi?

Institution:	(1) Faculty of Physics, University of Belgrade, P.O. Box 368, 11001 Belgrade, Serbia and Montenegro;(2) Institute of Nuclear Sciences Vina, P.O. Box 522, 11001 Belgrade, Serbia and Montenegro;(3) Faculty of Natural Sciences and Mathematics, University of Montenegro, P.O. Box 211, 81001 Podgorica, Serbia and Montenegro

Abstract:	The production of the N(1440), the so-called Roper, and N(1520) resonances in high-energy collisions of carbon nuclei with the carbon nucleus, using a 2 m propane bubble chamber, was investigated. Attention was paid to the two-pion decay mode of the higher baryon resonances. From the invariant masses of three-particle states $(p \pi^{ + } \pi^{-} )$ the mass and width of the resonances were obtained. The ratio of the resonances decay to $(\Delta \pi)$ and $(N \pi \pi)$ states was estimated.Received: 1 July 2003, Revised: 29 September 2003, Published online: 20 April 2004PACS: 25.70.Ef Resonances - 14.20.Gk Baryon resonances with S = 0

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