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Combined analysis of world data on nucleon spin structure functions

1994; Elsevier BV; Volume: 320; Issue: 3-4 Linguagem: Inglês

10.1016/0370-2693(94)90677-7

1873-2445

B. Adeva, S. Ahmad, A. Arvidson, B. Badełek, M. Ballintijn, G. Bardin, G. Baum, P. Berglund, L. Betev, I. Bird, R. Birsa, P. Björkholm, B. E. Bonner, N. de Botton, M. Boutemeur, F. Bradamante, A. Bressan, A. Brüll, J. Buchanan, S. Bültmann, E. Burtin, C. Cavata, J.P. Chen, J.M. Clement, M. Clocchiatti, M. Corcoran, Donald G. Crabb, J. Cranshaw, T. Çuhadar, S. Dalla Torre, R. van Dantzig, Donal B. Day, S. Dhawan, C. Dulya, A. Dyring, S. Eichblatt, J.C. Faivre, D. Fasching, F. Feinstein, Christian Fernandéz, B. Frois, C. Garabatos, J. A. Garzón, T. Gaussiran, M. Giorgi, E. von Goeler, A. Gómez, G. Gracia, M. Große Perdekamp, D. von Harrach, T. Hasegawa, N. Hayashi, C. A. Heusch, N. Horikawa, V. W. Hughes, G. Igo, S. Ishimoto, T. Iwata, M. de Jong, E.M. Kabuß, R. Kaiser, A. Karev, H.J. Kessler, T. Ketel, A. Kishi, Yu. Kisselev, L. Klostermann, V. G. Krivokhijine, V. Kukhtin, J. Kyynäräinen, M. Lamanna, U. Landgraf, K. Lau, T. Layda, F. Lehar, A. de Lesquen, J. Lichtenstadt, T. Lindqvist, M. Litmaath, S. Lopez-Ponte, M. Löwe, A. Magnon, G.K. Mallot, F. Marie, A. Martin, J. Martino, B. Mayes, J. S. McCarthy, G. van Middelkoop, D. H. Miller, Jason W. Mitchell, K. Mori, J. Moromisato, G. S. Mutchler, J. Nassalski, L. Naumann, T. Niinikoski, J.E.J. Oberski, S. Okumi, A. Penzo, G. Perez, F. Perrot-Kunne, D. V. Peshekhonov, R. Piegaia, L. Pinsky, S. Platchkov, M. Pló, D. Pose, H. Postma, T. Pussieux, J. Pyrlik, J.M. Rieubland, A. Rijllart, J. B. Roberts, Miguel Á. Rodríguez, E. Rondio, L. Ropelewski, A. Rosado, I. Sabo, J. Saborido, A. Sandacz, D. A. Sanders, I. Savin, P. Schiavon, K. P. Schüler, R. E. Segel, R. Seitz, С. В. Сергеев, F. Sever, P. Shanahan, G.I. Smirnov, A. Staude, A. Steinmetz, H. B. Stuhrmann, K.M. Teichert, F. Tessarotto, Walter Thiel, S. Trentalange, Y. Tzamouranis, Mayda Velasco, J. Vogt, R. Voss, R. Weinstein, C. Whitten, R. Windmolders, W. Wiślicki, A. Witzmann, A. Yáñez, A. Zanetti, J. Zhao,

Computational Physics and Python Applications

We analyse the proton, deuteron and neutron spin dependent structure functions at fixed Q2 = 5 GeV2. The experimental asymmetries for the proton, neutron and deuteron are compared and found to be consistent. The first moment of the neutron structure function is evaluated using all available data. We find that the Bjorken sum rule is confirmed within an experimental uncertainty of 17%. The quark spin contribution to the nucleon spin is small, and the strange quark spin content is different from zero.