A measurement of the transverse polarization of Λ-hyperons produced in inelastic pN-reactions at 450 GeV proton energy

V. Fanti*, A. Lai, L. Musa, A. Nappi, M. G. Setzu, R. W. Moore, D. J. Munday, M. A. Parker, S. F. Takach, T. O. White, G. Barr, G. Bocquet, J. Bremer, A. Ceccucci, J. Cogan, D. Cundy, N. Doble, G. Fischer, W. Funk, L. GatignonA. Gianoli, A. Gonidec, P. Grafström, W. Kubischta, V. Marzulli, G. Kesseler, J. P. Matheys, A. Norton, S. Palestini, B. Panzer-Steindel, D. Schinzel, H. Taureg, M. Velasco, O. Vossnack, H. Wahl, V. Kekelidze, I. Kojevnikov, Yu Potrebenikov, P. Hristov, G. Tatishvili, A. Tkatchev, L. Bertolotto, O. Boyle, B. Hay, N. E. McKay, G. Oakland, H. Parsons, K. J. Peach, C. Talamonti, A. Walker, P. Dalpiaz, J. Duclos, A. Formica, P. L. Frabetti, M. Martini, F. Petrucci, M. Porcu, F. Rossi, M. Savrie, C. Simani, A. Bizzeti, M. Calvetti, M. Lenti, A. Michetti, H. G. Becker, T. Beier, H. Blümer, P. Buchholz, D. Coward, C. Ebersberger, A. Kalter, K. Kleinknecht, U. Koch, L. Köpke, F. Leber, S. Luitz, B. Renk, J. Scheidt, J. Schmidt, V. Schönharting, R. Wilhelm, O. Zeitnitz, J. C. Chollet, S. Crépé, L. Fayard, L. Iconomidou-Fayard, 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, J. B. Cheze, M. de Beer, P. Debu, E. Mazzucato, B. Peyaud, S. Schanne, O. Steinkamp, R. Turlay, B. Vallage, I. Augustin, M. Bender, M. Holder, M. Ziolkowski, R. 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

*Corresponding author for this work

Research output: Contribution to journalArticle

17 Scopus citations

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.

Original languageEnglish (US)
Pages (from-to)265-269
Number of pages5
JournalEuropean Physical Journal C
Volume6
Issue number2
DOIs
StatePublished - 1999

ASJC Scopus subject areas

  • Engineering (miscellaneous)
  • Physics and Astronomy (miscellaneous)

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    Fanti, V., Lai, A., Musa, L., Nappi, A., Setzu, M. G., Moore, R. W., Munday, D. J., Parker, M. A., Takach, S. F., White, T. O., Barr, G., Bocquet, G., Bremer, J., Ceccucci, A., Cogan, J., Cundy, D., Doble, N., Fischer, G., Funk, W., ... Taurok, A. (1999). A measurement of the transverse polarization of Λ-hyperons produced in inelastic pN-reactions at 450 GeV proton energy. European Physical Journal C, 6(2), 265-269. https://doi.org/10.1007/s100529801045