The spin-dependent structure function of the proton [MathML equation] and a test of the Bjorken sum rule

• Published in: Physics letters. B 2010-07, Vol.690 (5), p.466-472
• Main Authors: Alekseev, M G, Alexakhin, VYu, Alexandrov, Yu, Austregesilo, A, Baum, G, Bedfer, Y, Bernhard, J, Bertini, R, Bettinelli, M, Bordalo, P, Bravar, A, Brona, G, Burtin, E, Colantoni, M, Crespo, M L, Das, S, Dhara, L, Donskov, S V, Doshita, N, Duic, V, Eversheim, P D, Gautheron, F, Gazda, R, Gerassimov, S, Geyer, R, Giorgi, M, Gobbo, B, Goertz, S, Grabmueller, S, Grube, B, Guskov, A, Hess, C, Horikawa, N, Ishimoto, S, Ivanov, O, Jegou, G, Joosten, R, Kabuss, E, Kaefer, W, Kang, D, Kisselev, Yu, Klein, F, Klimaszewski, K, Koivuniemi, J H, Kondo, K, Koenigsmann, K, Konopka, R, Konorov, I, Konstantinov, V F, Korzenev, A, Kowalik, K, Kraemer, M, Kunne, F, Le Goff, JM, Liska, T, Marroncle, J, Marzec, J, Meyer, W, Michigami, T, Mikhailov, YuV, Mutter, A, Nassalski, J, Nerling, F, Nikolaenko, VI, Nunes, A S, Padee, A, Panknin, R, Perevalova, E, Pesaro, G, Piragino, G, Polak, J, Polyakov, V A, Quintans, C, Ramos, S, Rapatsky, V, Reicherz, G, Robinet, F, Rocco, E, Ryabchikov, DI, Sandacz, A, Sapozhnikov, M G, Sarkar, S, Savin, IA, Schiavon, P, Schill, C, Schlueter, T, Schmitt, L, Schopferer, S, Siebert, H-W, Smirnov, GI, Sosio, S, Sozzi, F, Srnka, A, Sulc, M, Tessarotto, F, Teufel, A, Virius, M, Wislicki, W, Zaremba, K, Zavertyaev, M
• Format: Article
• Language: English
• Subjects: Asymmetry; Constants; Density; Elementary particles; Joining; Mathematical analysis; Sum rules; Vectors (mathematics)
• ISSN: 0370-2693
• DOI: 10.1016/j.physletb.2010.05.069

The inclusive double-spin asymmetry, [MathML equation], has been measured at COMPASS in deep-inelastic polarised muon scattering off a large polarised NH sub(3) target. The data, collected in the year 2007, cover the range [MathML equation], 0.004