Production of Xi* resonances in Sigma(-) induced reactions at 345 GeV/c

Citation
Mi. Adamovich et al., Production of Xi* resonances in Sigma(-) induced reactions at 345 GeV/c, EUR PHY J C, 11(2), 1999, pp. 271-278
Citations number
38
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
EUROPEAN PHYSICAL JOURNAL C
ISSN journal
1434-6044 → ACNP
Volume
11
Issue
2
Year of publication
1999
Pages
271 - 278
Database
ISI
SICI code
1434-6044(199911)11:2<271:POXRIS>2.0.ZU;2-#
Abstract
We report on a measurement of the differential and total cross sections of inclusive production of Xi* resonances in Sigma(-) - nucleus collisions at 345 GeV/c. The cross section for inclusive Xi(530)(0) production is about a factor of 5 below that of Xi(1320)(-) hyperons. The products of cross sect ion and branching ratio for the observed channels Xi(1690)(0) --> Xi(-)pi()Xi 1820(-) --> Xi(1530)(0)pi(-) and Xi(1950)(-) --> Xi(1530)(0) pi(-) are lower by yet another order of magnitude. The Xi(1820)(-) and Xi(1950)(-) re sonances show significantly harder x(F) and pi distributions than Xi(-) and Xi(1530)(0) hyperons. A comparison of the x(F)-distribution to PYTHIA and QGSM predictions provides only a partial agreement.