| Accueil > A measurement of $\Xi^{-}$ polarization in inclusive production by $\Sigma^{-}$ of 340 GeV/c in C and Cu targets |
| Article | |
| Title | A measurement of $\Xi^{-}$ polarization in inclusive production by $\Sigma^{-}$ of 340 GeV/c in C and Cu targets |
| Author(s) |
Adamovich, M I ; Alexandrov, Yu A ; Baranov, S P ; Barberis, D ; Beck, M ; Bérat, C ; Beusch, Werner ; Boss, M ; Brons, S ; Brückner, W ; Buénerd, M ; Busch, C ; Büscher, C ; Charignon, F ; Chauvin, J ; Chudakov, E A ; Dersch, U ; Dropmann, F ; Engelfried, J ; Faller, F ; Fournier, A ; Gerassimov, S G ; Godbersen, M ; Grafström, P ; Haller, Th ; Heidrich, M ; Hubbard, E ; Hurst, R B ; Keller, N ; Königsmann, K C ; Konorov, I ; Martens, K ; Martin, P ; Masciocchi, S ; Michaels, R ; Müller, U ; Neeb, H ; Newbold, D ; Newsom, C ; Paul, S ; Pochodzalla, J ; Povh, B ; Ransome, R ; Ren, Z ; Epherre-Rey-Campagnolle, Marcelle ; Rosner, G ; Rossi, L ; Rudolph, H ; Schmitt, L ; Siebert, H W ; Simon, A ; Smith, V J ; Thilmann, O ; Trombini, A ; Vesin, E ; Volkemer, B ; Vorwalter, K ; Walcher, T ; Wälder, G ; Werding, R ; Wittmann, E ; Zavertyaev, M V |
| Affiliation | (CERN) |
| Publication | 2004 |
| In: | Eur. Phys. J. C 36 (2004) 315-321 |
| DOI | 10.1140/epjc/s2004-01965-3 |
| Subject category | Particle Physics - Experiment |
| Accelerator/Facility, Experiment | CERN SPS ; WA89 |
| Abstract | We have measured the polarization of Xi /sup -/ hyperons produced inclusively by a Sigma /sup -/ beam of 340 GeV/c momentum in nuclear targets. From a sample of 880000 identified Xi /sup -/ decays, polarizations were determined in the range 0<x/sub F/<0.9 and p/sub t /<or=1.6 GeV/c. The polarization w.r.t. the production normal is negative for x/sub F/>or=0.3. At fixed values of x/sub F/, its magnitude increases with p/sub t/ to maximum values which reach about 20% at large x/sub F/. |