Production of Ξ* resonances in ∑- induced reactions at 345 GeV/c Article

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Overview

abstract

• We report on a measurement of the differential and total cross sections of inclusive production of Ξ* resonances in ∑- - nucleus collisions at 345 GeV/c. The cross section for inclusive Ξ01530 production is about a factor of 5 below that of Ξ-1320 hyperons. The products of cross section and branching ratio for the observed channels Ξ01690 → Ξ- π%2b Ξ-1820 → Ξ01530π- and Ξ-1950 → Ξ01530 π- are lower by yet another order of magnitude. The Ξ-1820 and Ξ-1950 resonances show significantly harder xF and pt distributions than Ξ- and Ξ01530 hyperons. A comparison of the xF-distribution to PYTHIA and QGSM predictions provides only a partial agreement.

authors

• Adamovich M.I.
• Alexandrov Yu.A.
• Baranov S.P.
• Barberis D.
• Beck M.
• Beusch W.
• Boss M.
• Brons S.
• Bruckner W.
• Busch Ch.
• Buénerd M.
• Bérat C.
• Büscher C.
• Charignon F.
• Chauvin J.
• Chudakov E.A.
• Dersch U.
• Dropmann F.
• Engelfried Jatzkowski Jurgen
• Faller F.
• Fournier A.
• Gerassimov S.G.
• Godbersen M.
• Grafström P.
• Haller Th.
• Heidrich M.
• Hubbard E.
• Hurst R.B.
• Keller N.
• Konorov I.
• Königsmann K.
• Martens K.
• Martin Ph.
• Masciocchi S.
• Michaels R.
• Müller U.
• Neeb H.
• Newbold D.
• Newsom C.
• Paul S.
• Pochodzalla J.
• Potashnikova I.
• Povh B.
• Ransome R.D.
• Ren Z.
• Rey-Campagnolle M.
• Rosner G.
• Rossi L.
• Rudolph H.
• Scheel C.
• Schmitt L.
• Siebert H.-W.
• Simon A.
• Smith V.J.
• Thilmann O.
• Trombini A.
• Vesin E.
• Volkemer B.
• Vorwalter K.
• Walcher Th.
• Werding R.
• Wittmann E.
• Wälder G.
• Zavertyaev M.V.

publication date

• 1999-01-01

published in

• European Physical Journal C  Journal

Identity

Digital Object Identifier (DOI)

• 10.1007/s100529900178

Additional Document Info

start page

• 271

end page

• 278

volume

• 11

issue

• 2