Spin asymmetry in muon-proton deep inelastic scattering on a transversely-polarized target

We measured the spin asymmetry in the scattering of 100 GeV longitudinally-polarized muons on transversely polarized protons. The asymmetry was found to be compatible with zero in the kinematic range $0.006<x<0.6$, $1<Q^2<30\,~\mbox{GeV}^2$. {}From this result we derive the upper limits...

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Detalles Bibliográficos
Autores principales: Adams, D., Adeva, B., Arik, E., Arvidson, A., Badelek, B., Ballintijn, M.K., Bardin, G., Baum, G., Berglund, P., Betev, L., Bird, I.G., Birsa, R., Björkholm, P., Bonner, B.E., de Botton, N., Bradamante, F., Bressan, A., Brüll, A., Bültmann, S., Burtin, E., Cavata, C., Clocchiatti, M., Corcoran, M.D., Crabb, D., Cranshaw, J., Crawford, M., Çuhadar, T., Dalla Torre, S., van Dantzig, R., Dhawan, S., Dulya, C., Dyring, A., Eichblatt, S., Faivre, J.C., Fasching, D., Feinstein, F., Fernandez, C., Frois, B., Garzon, J.A., Gaussiran, T., Giorgi, M., von Goeler, E., Gracia, G., de Groot, N., Grosse Perdekamp, M., Gülmez, E., von Harrach, D., Hasegawa, T., Hautle, P., Hayashi, N., Heusch, C.A., Horikawa, N., Hughes, V.W., Igo, G., Ishimoto, S., Iwata, T., Kabuβ, E.M., Kaiser, R., Karev, A., Kessler, H.J., Ketel, T.J., Kishi, A., Kisselev, Yu., Klostermann, L., Krämer, D., Krivokhijine, V., Kukhtin, V., Kyynäräinen, J., Lamanna, M., Landgraf, U., Lau, K., Layda, T., Le Goff, J.M., Lehar, F., de Lesquen, A., Lichtenstadt, J., Lindqvist, T., Litmaath, M., Lopez-Ponte, S., Lowe, M., Magnon, A., Mallot, G.K., Marie, F., Martin, A., Martino, J., Matsuda, T., Mayes, B., McCarthy, J.S., Medved, K., van Middelkoop, G., Miller, D., Mori, K., Moromisato, J., Nagaitsev, A., Nassalski, J., Naumann, L., Niinikoski, T.O., Oberski, J.E.J., Parks, D.P., Penzo, A., Perez, C., Perrot-Kunne, F., Peshekhonov, D., Piegaia, R., Pinsky, L., Platchkov, S., Plo, M., Pose, D., Postma, H., Pretz, J., Pussieux, T., Pyrlik, J., Reyhancan, I., Rieubland, J.M., Rijllart, A., Roberts, J.B., Rock, S., Rodriguez, M., Rondio, E., Rosado, A., Sabo, I., Saborido, J., Sandacz, A., Savin, I., Schiavon, P., Schüler, K.P., Segel, R., Seitz, R., Semertzidis, Y., Sever, F., Shanahan, P., Shumeiko, N., Smirnov, G., Staude, A., Steinmetz, A., Stiegler, U., Stuhrmann, H., Teichert, K.M., Tessarotto, F., Velasco, M., Vogt, J., Voss, R., Weinstein, R., Whitten, C., Windmolders, R., Willumeit, R., Wislicki, W., Witzmann, A., Zanetti, A.M., Zhao, J.
Lenguaje:eng
Publicado: 1994
Materias:
Particle Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1016/0370-2693(94)00968-6
http://cds.cern.ch/record/266991
Descripción
Sumario:We measured the spin asymmetry in the scattering of 100 GeV longitudinally-polarized muons on transversely polarized protons. The asymmetry was found to be compatible with zero in the kinematic range $0.006<x<0.6$, $1<Q^2<30\,~\mbox{GeV}^2$. {}From this result we derive the upper limits for the virtual photon--proton asymmetry $A_2$, and for the spin structure function $g_2$. For $x<0.15$, $A_2$ is significantly smaller than its positivity limit $\sqrt{R}$.

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