A measurement of the transverse polarization of Lambda-hyperons produced in inelastic pN-reactions at 450 GeV proton energy RID C-6551-2009 RID A-4071-2012

V Fanti, A Lai, L Musa, A Nappi, Setzu MG, Moore RW, Munday DJ, Parker MA, Takach SF, White TO, G Barr, G Bocquet, J Bremer, A Ceccucci, J Cogan, D Cundy, N Doble, G Fischer, W Funk, L GatignonA Gianoli, A Gonidec, P Grafstrom, W Kubischta, V Marzulli, G Kesseler, Matheys JP, A Norton, S Palestini, Steindel B Pazer, D Schinzel, H Taureg, M Velasco, O Vossnack, H Wahl, V Kekelidze, I Kojevnikov, Y Potrebenikov, P Hristov, G Tatishvili, A Tkatchev, L Bertolotto, O Boyle, B Hay, McKay NE, G Oakland, H Parsons, Peach KJ, C Talamonti, A Walker, P Dalpiaz, J Duclos, A Formica, Frabetti PL, M Martini, F Petrucci, M Porcu, F Rossi, M Savrie, C Simani, A Bizzeti, M Calvetti, M Lenti, A Michetti, Becker HG, T Beier, H Blumer, P Buchholz, D Coward, C Ebersberger, A Kalter, K Kleinknecht, U Koch, L Kopke, F Leber, S Luitz, B Renk, J Scheidt, J Schmidt, V Schonharting, R Wilhelm, O Zeitnitz, Chollet JC, S Crepe, L Fayard, Fayard L Iconomidou, J Ocariz, G Unal, G Anzivino, P Cenci, P Lubrano, M Pepe, P Calafiura, R Carosi, R Casali, C Cerri, F Costantini, R Fantechi, S Giudici, B Gorini, I Mannelli, G Pierazzini, M Sozzi, Cheze JB, Beer M De, P Debu, E Mazzucato, B Peyaud, S Schanne, O Steinkamp, R Turlay, B Vallage, I Augustin, M Bender, M Holder, M Ziolkowski, Roberta ARCIDIACONO, C Biino, G Govi, P Maas, F Marchetto, E Menichetti, H Dibon, M Jeitler, M Markytan, I Mikulec, G Neuhofer, M Pernicka, A. Taurok

Risultato della ricerca: Contributo su rivistaArticolo in rivistapeer review

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.

Lingua originaleInglese
pagine (da-a)265-269
Numero di pagine5
RivistaTHE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS
Volume6
Numero di pubblicazione2
DOI
Stato di pubblicazionePubblicato - 1999

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