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

Abstract

Here 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 $$\bar{Λ}$$ polarization is consistent with zero.

Authors:
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  1. Istituto Nazionale di Fisica Nucleare (INFN), Cagliari (Italy). Dipartimento di Fisica
  2. Univ. of Cambridge (United Kingdom). Cavendish Lab., Physics Dept.
  3. European Organization for Nuclear Research (CERN), Geneva (Switzerland)
  4. Joint Inst. for Nuclear Research (JINR), Dubna (Russian Federation)
  5. Univ. of Edinburgh, Scotland (United Kingdom). Dept. of Physics
  6. Istituto Nazionale di Fisica Nucleare (INFN), Ferrara (Italy). Dipartimento di Fisica
  7. Istituto Nazionale di Fisica Nucleare (INFN), Firenze (Italy). Dipartimento di Fisica
  8. Univ. of Mainz (Germany). Inst. fur Physik
  9. Univ. Paris-Sud, Orsay (France). Lab. de l'Accelerateur Lineaire (LAL)
  10. Istituto Nazionale di Fisica Nucleare (INFN), Perugia (Italy). Dipartimento di Fisica
  11. Istituto Nazionale di Fisica Nucleare (INFN), Pisa (Italy). Dipartimento di Fisica
  12. Commissariat a l'Energie Atomique et aux Energies Alternatives (CEA-Saclay), Gif-sur-Yvette (France)
  13. Univ. of Siegen (Germany). Fachbereich Physik
  14. Istituto Nazionale di Fisica Nucleare (INFN), Torino (Italy). Dipartimento di Fisica
  15. Osterreichische Akademie der Wissenschaften, Wien (Austria). Institut fur Hochenergiephysik
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1407021
Grant/Contract Number:  
AC02-05CH11231
Resource Type:
Accepted Manuscript
Journal Name:
European Physical Journal. C, Particles and Fields
Additional Journal Information:
Journal Volume: 6; Journal Issue: 2; Journal ID: ISSN 1434-6044
Publisher:
Springer
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Fanti et al., V., Lai, A., 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., Gatignon, L., Gianoli, A., Gonidec, A., Grafstrom, P., Kubischta, W., Marzulli, V., Kesseler, G., Matheys, J. P., Norton, A., Palestini, S., Panzer-Steindel, B., Schinzel, D., Taureg, H., Velasco,, M., Vossnack, O., Wahl, H., Kekelidze, V., Kojevnikov, I., Potrebenikov, Yu., Hristov, P., Tatishvili, G., Tkatchev, A., Bertolotto, L., Boyle, O., Hay, B., McKay, N. E., Oakland, G., Parsons, H., Peach, K. J., Talamonti, C., Walker, A., Dalpiaz, P., Duclos, J., Formica, A., Frabetti, P. L., Martini, M., Petrucci, F., Porcu, M., Rossi, F., Savrie, M., Simani, C., Bizzeti, A., Calvetti, M., Lenti, M., Michetti, A., Becker, H. G., Beier, T., Blumer, H., Buchholz, P., Coward, D., Ebersberger, C., Kalter, A., Kleinknecht, K., Koch, U., Kopke, L., Leber, F., Luitz, S., Renk, B., Scheidt, J., Schmidt, J., Schonharting, V., Wilhelm, R., Zeitnitz, O., Chollet, J. C., Crepre, S., Fayard, L., Iconomidou-Fayard, L., Ocariz, J., Unal, G., Anzivino, G., Cenci, P., Lubrano, P., Pepe, M., Cala ura, P., Carosi, R., Casali, R., Cerri, C., Costantini, F., Fantechi, R., Giudici, S., Gorini, B., Mannelli, Gorini, I., Pierazzini, G., Sozzi, M., Cheze, J. B., De Beer, M., Debu, P., Mazzucato, E., Peyaud, B., Schanne, S., Steinkamp, O., Turlay, R., Vallage, B., Augustin, I., Bender, M., Holder, M., Ziolkowski, M., Arcidiacono, R., Biino, C., Govi, G., Maas, P., Marchetto, F., Menichetti, E., Dibon, H., Jeitler, M., Markytan, M., Mikulec, I., Neuhofer, G., Pernicka, M., and Taurok, A. A measurement of the transverse polarization of Λ-hyperons produced in inelastic pN-reactions at 450 GeV proton energy. United States: N. p., 1998. Web. doi:10.1007/s100529801045.
Fanti et al., V., Lai, A., 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., Gatignon, L., Gianoli, A., Gonidec, A., Grafstrom, P., Kubischta, W., Marzulli, V., Kesseler, G., Matheys, J. P., Norton, A., Palestini, S., Panzer-Steindel, B., Schinzel, D., Taureg, H., Velasco,, M., Vossnack, O., Wahl, H., Kekelidze, V., Kojevnikov, I., Potrebenikov, Yu., Hristov, P., Tatishvili, G., Tkatchev, A., Bertolotto, L., Boyle, O., Hay, B., McKay, N. E., Oakland, G., Parsons, H., Peach, K. J., Talamonti, C., Walker, A., Dalpiaz, P., Duclos, J., Formica, A., Frabetti, P. L., Martini, M., Petrucci, F., Porcu, M., Rossi, F., Savrie, M., Simani, C., Bizzeti, A., Calvetti, M., Lenti, M., Michetti, A., Becker, H. G., Beier, T., Blumer, H., Buchholz, P., Coward, D., Ebersberger, C., Kalter, A., Kleinknecht, K., Koch, U., Kopke, L., Leber, F., Luitz, S., Renk, B., Scheidt, J., Schmidt, J., Schonharting, V., Wilhelm, R., Zeitnitz, O., Chollet, J. C., Crepre, S., Fayard, L., Iconomidou-Fayard, L., Ocariz, J., Unal, G., Anzivino, G., Cenci, P., Lubrano, P., Pepe, M., Cala ura, P., Carosi, R., Casali, R., Cerri, C., Costantini, F., Fantechi, R., Giudici, S., Gorini, B., Mannelli, Gorini, I., Pierazzini, G., Sozzi, M., Cheze, J. B., De Beer, M., Debu, P., Mazzucato, E., Peyaud, B., Schanne, S., Steinkamp, O., Turlay, R., Vallage, B., Augustin, I., Bender, M., Holder, M., Ziolkowski, M., Arcidiacono, R., Biino, C., Govi, G., Maas, P., Marchetto, F., Menichetti, E., Dibon, H., Jeitler, M., Markytan, M., Mikulec, I., Neuhofer, G., Pernicka, M., & Taurok, A. A measurement of the transverse polarization of Λ-hyperons produced in inelastic pN-reactions at 450 GeV proton energy. United States. doi:10.1007/s100529801045.
Fanti et al., V., Lai, A., 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., Gatignon, L., Gianoli, A., Gonidec, A., Grafstrom, P., Kubischta, W., Marzulli, V., Kesseler, G., Matheys, J. P., Norton, A., Palestini, S., Panzer-Steindel, B., Schinzel, D., Taureg, H., Velasco,, M., Vossnack, O., Wahl, H., Kekelidze, V., Kojevnikov, I., Potrebenikov, Yu., Hristov, P., Tatishvili, G., Tkatchev, A., Bertolotto, L., Boyle, O., Hay, B., McKay, N. E., Oakland, G., Parsons, H., Peach, K. J., Talamonti, C., Walker, A., Dalpiaz, P., Duclos, J., Formica, A., Frabetti, P. L., Martini, M., Petrucci, F., Porcu, M., Rossi, F., Savrie, M., Simani, C., Bizzeti, A., Calvetti, M., Lenti, M., Michetti, A., Becker, H. G., Beier, T., Blumer, H., Buchholz, P., Coward, D., Ebersberger, C., Kalter, A., Kleinknecht, K., Koch, U., Kopke, L., Leber, F., Luitz, S., Renk, B., Scheidt, J., Schmidt, J., Schonharting, V., Wilhelm, R., Zeitnitz, O., Chollet, J. C., Crepre, S., Fayard, L., Iconomidou-Fayard, L., Ocariz, J., Unal, G., Anzivino, G., Cenci, P., Lubrano, P., Pepe, M., Cala ura, P., Carosi, R., Casali, R., Cerri, C., Costantini, F., Fantechi, R., Giudici, S., Gorini, B., Mannelli, Gorini, I., Pierazzini, G., Sozzi, M., Cheze, J. B., De Beer, M., Debu, P., Mazzucato, E., Peyaud, B., Schanne, S., Steinkamp, O., Turlay, R., Vallage, B., Augustin, I., Bender, M., Holder, M., Ziolkowski, M., Arcidiacono, R., Biino, C., Govi, G., Maas, P., Marchetto, F., Menichetti, E., Dibon, H., Jeitler, M., Markytan, M., Mikulec, I., Neuhofer, G., Pernicka, M., and Taurok, A. Thu . "A measurement of the transverse polarization of Λ-hyperons produced in inelastic pN-reactions at 450 GeV proton energy". United States. doi:10.1007/s100529801045. https://www.osti.gov/servlets/purl/1407021.
@article{osti_1407021,
title = {A measurement of the transverse polarization of Λ-hyperons produced in inelastic pN-reactions at 450 GeV proton energy},
author = {Fanti et al., V. and Lai, A. and Nappi, A. and Setzu, M. G. and Moore, R. W. and Munday, D. J. and Parker, M. A. and Takach, S. F. and White, T. O. and Barr, G. and Bocquet, G. and Bremer, J. and Ceccucci, A. and Cogan, J. and Cundy, D. and Doble, N. and Fischer, G. and Funk, W. and Gatignon, L. and Gianoli, A. and Gonidec, A. and Grafstrom, P. and Kubischta, W. and Marzulli, V. and Kesseler, G. and Matheys, J. P. and Norton, A. and Palestini, S. and Panzer-Steindel, B. and Schinzel, D. and Taureg, H. and Velasco,, M. and Vossnack, O. and Wahl, H. and Kekelidze, V. and Kojevnikov, I. and Potrebenikov, Yu. and Hristov, P. and Tatishvili, G. and Tkatchev, A. and Bertolotto, L. and Boyle, O. and Hay, B. and McKay, N. E. and Oakland, G. and Parsons, H. and Peach, K. J. and Talamonti, C. and Walker, A. and Dalpiaz, P. and Duclos, J. and Formica, A. and Frabetti, P. L. and Martini, M. and Petrucci, F. and Porcu, M. and Rossi, F. and Savrie, M. and Simani, C. and Bizzeti, A. and Calvetti, M. and Lenti, M. and Michetti, A. and Becker, H. G. and Beier, T. and Blumer, H. and Buchholz, P. and Coward, D. and Ebersberger, C. and Kalter, A. and Kleinknecht, K. and Koch, U. and Kopke, L. and Leber, F. and Luitz, S. and Renk, B. and Scheidt, J. and Schmidt, J. and Schonharting, V. and Wilhelm, R. and Zeitnitz, O. and Chollet, J. C. and Crepre, S. and Fayard, L. and Iconomidou-Fayard, L. and Ocariz, J. and Unal, G. and Anzivino, G. and Cenci, P. and Lubrano, P. and Pepe, M. and Cala ura, P. and Carosi, R. and Casali, R. and Cerri, C. and Costantini, F. and Fantechi, R. and Giudici, S. and Gorini, B. and Mannelli, Gorini, I. and Pierazzini, G. and Sozzi, M. and Cheze, J. B. and De Beer, M. and Debu, P. and Mazzucato, E. and Peyaud, B. and Schanne, S. and Steinkamp, O. and Turlay, R. and Vallage, B. and Augustin, I. and Bender, M. and Holder, M. and Ziolkowski, M. and Arcidiacono, R. and Biino, C. and Govi, G. and Maas, P. and Marchetto, F. and Menichetti, E. and Dibon, H. and Jeitler, M. and Markytan, M. and Mikulec, I. and Neuhofer, G. and Pernicka, M. and Taurok, A.},
abstractNote = {Here 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 $\bar{Λ}$ polarization is consistent with zero.},
doi = {10.1007/s100529801045},
journal = {European Physical Journal. C, Particles and Fields},
number = 2,
volume = 6,
place = {United States},
year = {1998},
month = {11}
}

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