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InclusiveΔ ++ (1232) and∑ ± (1385) production inK − p interactions at 32 GeV/c |
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| Authors: | M Walter L Becker J Klabuhn T Naumann P Sixel F A Triantis M Yu Bogoljubsky E A Kozlovsky A M Moiseev E A Vlasov M N Ukhanov D Denegri A Givernaud C Lewin M L Turluer F Mandl France-Soviet Union Collaboration CERN-Soviet Union Collaboration |
| Institution: | 1. Institut für Hochenergiephysik der Akademie der Wissenschaften der DDR, Berlin-Zeuthen, German Democratic Republic 2. III. Physikalisches Institut der Technischen Hochschule, Aachen, Federal Republic of Germany 3. CERN, European Organization for Nuclear Research, Geneva, Switzerland 4. I.H.E.P., Serpukhov, USSR 5. Départment de Physique des Particules Elèmentaires, CEN-Saclay, Gif-sur-Yvette, France 6. Institut für Hochenergiephysik der ?sterreichischen Akademie der Wissenschaften, Vienna, Austria |
| Abstract: | We have studied inclusiveΔ ++ (1232),∑ + (1385), and∑ ? (1385) baryon resonance production inK ? p interactions at 32 GeV/c. The inclusive and topological cross sections are estimated and compared with published results at lower energies. No energy variation of the cross section is observed forΔ ++ (1232) and only a slight decrease is seen in case of∑ ± (1385). The production properties are investigated through longitudinal and transverse momentum distributions. TheΔ ++ (1232) is dominantly produced in the target fragmentation region. The∑ + (1385) is produced both in the target fragmentation region and in the central region, while the∑ ? (1385) is predominantly produced in the central region. About 20% of the final state protons are produced via aΔ ++ (1232) decay and about 25% of the Λ produced come from the decay of∑ + (1385) and∑ ? (1385). |
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