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Ξ? and Ξ? inclusive production in Ξ? Be interactions at 116 GeV/c |
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| Authors: | S F Biagi M Bourquin R M Brown H J Burckhart P Extermann M Gailloud C N P Gee W M Gibson P Jacot-Guillarmod Th Modis J Perrier K J Ragan Ph Rosselet P Schirato H W Siebert V J Smith K -P Streit J J Thresher A T Wood C Yanagisawa |
| Institution: | 1. Queen mary College, University of London, E1 4NS, London, UK 3. University of Geneva, CH-1211, Geneva, Switzerland 4. Rutherford Appleton Laboratory, Chilton, OX11 OQX, Didcot, UK 5. Physikalisches Institut, University of Heidelberg, D-6900, Heidelberg, Federal Republic of Germany 7. University of Lausanne, CH-1000, Lausanne, Switzerland 8. H. H. Wills Physics Laboratory, University of Bristol, BS8 1TL, Bristol, UK 6. CERN, CH-1211, Geneva 23, Switzerland |
| Abstract: | The cross sections for Ξ? and Ω? inclusive production in Ξ? Be collisions at 116 GeV/c have been measured in the kinematic domain 0.1<x F <0.9, 0<p T <1.7 GeV/c]. The integrated cross sections per nucleon are found to be about twice as large as in Ξ? p collisions. The invariant cross sections increase by a factor of 70 for the Ξ? s and of 100 for the Ω? s between the central region (x F ～0.2) and the projectile fragmentation region (x F ～0.8). In the central region, they have about the same magnitude as the ones for Ξ? and Ω? inclusive production inp nucleon collisions. The Ξ? and Ω? polarisations have been measured over the same kinematic domain and are found to be compatible with zero. |
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