Spin asymmetries A1 of the proton and the deuteron in the low x and low Q2 region from polarized high energy muon scattering

B. Adeva*, E. Arik, A. Arvidson, B. Badełek, G. Baum, P. Berglund, L. Betev, R. Birsa, N. De Botton, F. Bradamante, A. Bravar, S. Bültmann, E. Burtin, D. Crabb, J. Cranshaw, T. Çuhadar, S. Dalla Torre, R. Van Dantzig, B. Derro, A. DeshpandeS. Dhawan, C. Dulya, S. Eichblatt, D. Fasching, F. Feinstein, C. Fernandez, B. Froise, A. Gallas, J. A. Garzon, H. Gilly, M. Giorgi, S. Goertz, G. Garcia, 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. Kabuß, A. Karev, H. J. Kessler, T. J. Ketel, J. Kiryluk, Yu Kisselev, D. Krämer, W. Kröger, K. Kurek, J. Kyynäräinen, M. Lamanna, U. Landgraf, J. M. Le Goff, F. Lehar, A. De Lesquen, J. Lichtenstadt, M. Litmaath, 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. Nassalski, 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. Postma, J. Pretz, R. Puntaferro, G. Rädel, G. Reicherz, J. Roberts, M. Rodriguez, E. Rondio, I. Sabo, J. Saborido, A. Sandacz, I. Savin, P. Schiavon, E. P. Sichtermann, F. Simeoni, G. I. Smirnov, A. Staude, A. Steinmetz, U. Stiegler, H. Stuhrmann, F. Tessarotto, D. Thers, W. Tłaczała, A. Tripet, G. Unel, M. Velasco, J. Vogt, R. Voss, C. Whitten, R. Willumeit, R. Windmolders, W. Wiślicki, A. Witzmann, A. M. Zanetti, K. Zaremba, J. Zhao

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

108 Scopus citations

Abstract

We present the results of the spin asymmetries A1 of the proton and the deuteron in the kinematic region extending down to x=6×10-5 and Q2=0.01 GeV2. The data were taken with a dedicated low x trigger, which required hadron detection in addition to the scattered muon, so as to reduce the background at low x. The results complement our previous measurements and the two sets are consistent in the overlap region. No significant spin effects are found in the newly explored region.

Original languageEnglish (US)
Article number072004
Pages (from-to)1-9
Number of pages9
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume60
Issue number7
DOIs
StatePublished - Oct 1 1999

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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