1. A measurement of the transverse polarization of Λ-hyperons produced in inelastic pN-reactions at 450 GeV proton energy
- Author
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Fanti, V, Lai, A, Musa, L, Nappi, A, Setzu, MG, Moore, RW, Munday, DJ, Parker, MA, Takach, SF, White, TO, Barr, G, Bocquet, G, Bremer, J, Ceccucci, A, Cogan, J, Cundy, D, Doble, N, Fischer, G, Funk, W, Gatignon, L, Gianoli, A, Gonidec, A, Grafström, P, Kubischta, W, Marzulli, V, Kesseler, G, Matheys, JP, Norton, A, Palestini, S, Panzer-Steindel, B, Schinzel, D, Taureg, H, Velasco, M, Vossnack, O, Wahl, H, Kekelidze, V, Kojevnikov, I, Potrebenikov, Y, Hristov, P, Tatishvili, G, Tkatchev, A, Bertolotto, L, Boyle, O, Hay, B, McKay, NE, Oakland, G, Parsons, H, Peach, KJ, Talamonti, C, Walker, A, Dalpiaz, P, Duclos, J, Formica, A, Frabetti, PL, Martini, M, Petrucci, F, Porcu, M, Rossi, F, Savrie, M, Simani, C, Bizzeti, A, Calvetti, M, Lenti, M, Michetti, A, Becker, HG, Beier, T, Blümer, H, Buchholz, P, Coward, D, Ebersberger, C, Kalter, A, Kleinknecht, K, Koch, U, Köpke, L, Leber, F, Luitz, S, Renk, B, Scheidt, J, Schmidt, J, Schönharting, V, Wilhelm, R, Zeitnitz, O, Chollet, JC, Crépé, S, Fayard, L, Iconomidou-Fayard, L, Ocariz, J, Unal, G, Anzivino, G, Cenci, P, Lubrano, P, Pepe, M, Calafiura, P, Carosi, R, Casali, R, Cerri, C, Costantini, F, Fantechi, R, Giudici, S, and Gorini, B
- Subjects
Nuclear & Particles Physics ,Quantum Physics ,Atomic ,Molecular ,Nuclear ,Particle and Plasma Physics ,Atomic ,Molecular ,Nuclear ,Particle and Plasma Physics - Abstract
A study of the polarization of Λ hyperons produced in inelastic pN reactions induced by the 450 GeV proton beam from the CERN SPS has been performed with the NA48 detector. The Λ hyperons were detected at a fixed angle of 4.2 mrad in the momentum range from 50 GeV/c to 200 GeV/c. The polarization changes from -0.053 ± 0.034 to -0.298 ± 0.074 for a transverse momentum range of the Λ between 0.28 GeV/c and 0.86 GeV/c. The Λ̄ polarization is consistent with zero.
- Published
- 1999