Measurement of the SMC muon beam polarization using the asymmetry in the elastic scattering off polarized electrons

D. Adams*, B. Adeva, T. Akdogan, E. Arik, A. Arvidson, B. Badelek, G. Bardin, G. Baum, P. Berglund, L. Betev, R. Birsa, P. Björkholm, B. E. Bonner, N. de Botton, M. Boutemeur, F. Bradamante, A. Bravar, A. Bressan, S. Bültmann, E. BurtinC. Cavata, M. Clocchiatti, D. Crabb, J. Cranshaw, T. Çuhadar, S. Dalla Torre, R. van Dantzig, B. Derro, A. Deshpande, S. Dhawan, C. Dulya, A. Dyring, S. Eichblatt, J. C. Faivre, D. Fasching, F. Feinstein, C. Fernandez, S. Forthmann, B. Frois, A. Gallas, J. A. Garzon, L. Gatignon, T. Gaussiran, H. Gilly, M. Giorgi, E. von Goeler, S. Goertz, I. A. Golutvin, G. Gracia, N. de Groot, M. Grosse Perdekamp, K. Haft, D. von Harrach, T. Hasegawa, P. Hautle, N. Hayashi, C. A. Heusch, N. Horikawa, V. W. Hughes, G. Igo, S. Ishimoto, T. Iwata, E. M. Kabub, T. Kageya, A. Karev, H. J. Kessler, T. J. Ketel, J. Kiryluk, I. Kiryushin, A. Kishi, Yu Kisselev, L. Klostermann, D. Kramer, V. Krivokhijine, W. Kroger, V. Kukhtin, K. Kurek, J. Kyynäräinen, M. Lamanna, U. Landgra, J. M. Le Goff, F. Lehar, A. de Lesquen, J. Lichtenstadt, T. Lindqvist, M. Litmaath, M. Lowe, A. Magnon, G. K. Mallot, F. Marie, A. Martin, J. Martino, T. Matsuda, B. Mayes, J. S. McCarthy, K. Medved, W. Meyer, G. van Middelkoop, D. Miller, Y. Miyachi, K. Mori, J. Moromisato, A. Nagaitsev, J. Nassalski, L. Naumann, T. O. Niinikoski, J. E.J. Oberski, A. Ogawa, C. Ozben, H. Pereira, F. Perrot-Kunne, D. Peshekhonov, R. Piegaia, L. Pinsky, S. Platchkov, M. Plo, D. Pose, H. Postman, J. Pretz, T. Pussieux, G. Rädel, A. Rijllart, G. Reicherz, J. B. Roberts, S. Rock, M. Rodriguez, E. Rondio, L. Ropelewski, I. Sabo, J. Saborido, A. Sandacz, I. Savin, P. Schiavon, A. Schiller, K. P. Schüler, R. Seitz, Y. Semertzidis, S. Sergeev, P. Shanahan, E. P. Sichtermann, F. Simeoni, G. I. Smirnov, A. Staude, A. Steinmetz, U. Stiegler, H. Stuhrmann, M. Szleper, F. Tessarotto, D. Thers, W. Tlaczala, A. Tripet, G. Unel, M. Velasco, J. Vog, R. Voss, C. Whitten, R. Windmolders, R. Willumeit, W. Wislicki, A. Witzmann, K. Zaremba, N. I. Zamiatin, J. Zhao

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

A muon beam polarimeter was built for the SMC experiment at the CERN SPS, for beam energies of 100 and 190 GeV. The beam polarization is determined from the asymmetry in the elastic scattering off the polarized electrons of a ferromagnetic target whose magnetization is periodically reversed. At muon energies of 100 and 190 GeV the measured polarization is Pμ = -0.80±0.03 (stat.)±0.02 (syst.) and Pμ = -0.797±0.011 (stat.)±0.012 (syst.), respectively. These results agree with measurements of the beam polarization using a shape analysis of the decay positron energy spectrum.

Original languageEnglish
Pages (from-to)1-19
Number of pages19
JournalUnknown Journal
Volume443
Issue number1
DOIs
Publication statusPublished - 21 Mar 2000

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