| Article | |
| Title | Production of resonances in induced reactions at 345 GeV/c |
| Author(s) | WA89 Collaboration Show all 64 authors |
| Affiliation | (CERN) |
| Publication | 1999 |
| Imprint | 1999 |
| In: | Eur. Phys. J. C 11, 2 (1999) pp.271-8 |
| Subject category | Particle Physics - Experiment |
| Accelerator/Facility, Experiment | CERN SPS ; WA89 |
| Abstract | We report on a measurement of the differential and total cross sections of inclusive production of Xi * resonances in Sigma /sup -/- nucleus collisions at 345 GeV/c. The cross section for inclusive Xi /sub 1530//sup 0/ production is about a factor of 5 below that of Xi /sub 1320//sup -/ hyperons. The products of cross section and branching ratio for the observed channels Xi /sub 1690//sup 0/ to Xi /sup -/ pi /sup +/, Xi /sub 1820//sup -/ to Xi /sub 1530//sup 0/ pi /sup -/ and Xi /sub 1950//sup -/ to Xi /sub 1530//sup 0/ pi /sup -/ are lower by yet another order of magnitude. The Xi /sub 1820//sup -/ and Xi /sub 1950//sup -/ resonances show significantly harder x/sub F / and p/sub t/ distributions than Xi /sup -/ and Xi /sub 1530//sup 0/ hyperons. A comparison of the x/sub F/-distribution to PYTHIA and QGSM predictions provides only a partial agreement. (29 refs). |
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Record created 2000-02-10, last modified 2018-07-27
