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The spin structure function g(1)(p) of the proton and a test of the Bjorken sum rule
- Adolph, C. (author)
- Akhunzyanovh, R. (author)
- Alexeev, M. G. (author)
- show more...
- Alexeev, G. D. (author)
- Amoroso, A. (author)
- Andrieux, V. (author)
- Anosov, V. (author)
- Austregesilo, A. (author)
- Azevedo, C. (author)
- Badelek, B. (author)
- Balestra, F. (author)
- Barth, J. (author)
- Baum, G. (author)
- Beck, R. (author)
- Bedfer, Y. (author)
- Bernhard, J. (author)
- Bicker, K. (author)
- Bielert, E. R. (author)
- Birsa, R. (author)
- Bisplinghoff, J. (author)
- Bodlak, M. (author)
- Boer, M. (author)
- Bordalo, P. (author)
- Bradamante, F. (author)
- Braun, C. (author)
- Bressan, A. (author)
- Buechele, M. (author)
- Burtin, E. (author)
- Capozza, L. (author)
- Chang, W. -C (author)
- Chiosso, M. (author)
- Choi, I. (author)
- Chung, S. U. (author)
- Cicuttin, A. (author)
- Crespo, M. L. (author)
- Curiel, Q. (author)
- Dalla Torre, S. (author)
- Dasgupta, S. S. (author)
- Dasgupta, S. (author)
- Denisov, O. Yu. (author)
- Dhara, L. (author)
- Donskov, S. V. (author)
- Doshita, N. (author)
- Duic, V. (author)
- Dziewiecki, M. (author)
- Efremov, A. (author)
- Eversheim, P. D. (author)
- Eyrich, W. (author)
- Ferrero, A. (author)
- Finger, M. (author)
- Finger, M., Jr. (author)
- Fischer, H. (author)
- Franco, C. (author)
- von Hohenesche, N. du Fresne (author)
- Friedrich, J. M. (author)
- Frolov, V. (author)
- Fuchey, E. (author)
- Gautheron, F. (author)
- Gavrichtchouk, O. P. (author)
- Gerassimov, S. (author)
- Giordano, F. (author)
- Gnesi, I. (author)
- Gorzellik, M. (author)
- Grabmueller, S. (author)
- Grasso, A. (author)
- Grosse-Perdekamp, M. (author)
- Grube, B. (author)
- Grussenmeyer, T. (author)
- Guskov, A. (author)
- Haas, F. (author)
- Hahne, D. (author)
- von Harrach, D. (author)
- Hashimoto, R. (author)
- Heinsius, F. H. (author)
- Herrmann, F. (author)
- Hinterberger, F. (author)
- Horikawa, N. (author)
- d'Hose, N. (author)
- Hsieh, C. -Yu (author)
- Huber, S. (author)
- Ishimoto, S. (author)
- Ivanov, A. (author)
- Ivanshin, Yu. (author)
- Iwata, T. (author)
- Jahn, R. (author)
- Jary, V. (author)
- Joerg, P. (author)
- Joosten, R. (author)
- Kabuss, E. (author)
- Ketzer, B. (author)
- Khaustov, G. V. (author)
- Khokhlov, Yu. A. (author)
- Kisselev, Yu. (author)
- Klein, F. (author)
- Klimaszewski, K. (author)
- Koivuniemi, J. H. (author)
- Kolosov, V. N. (author)
- Kondo, K. (author)
- Koenigsmann, K. (author)
- Konorov, I. (author)
- Konstantinov, V. F. (author)
- Kotzinian, A. M. (author)
- Kouznetsov, O. (author)
- Kraemer, M. (author)
- Kremser, P. (author)
- Krinner, F. (author)
- Kroumchtein, Z. V. (author)
- Kuchinski, N. (author)
- Kunne, F. (author)
- Kurek, K. (author)
- Kurjata, R. P. (author)
- Lednev, A. A. (author)
- Lehmann, A. (author)
- Levillain, M. (author)
- Levorato, S. (author)
- Lichtenstadt, J. (author)
- Longo, R. (author)
- Maggiora, A. (author)
- Magnon, A. (author)
- Makins, N. (author)
- Makke, N. (author)
- Mallot, G. K. (author)
- Marchand, C. (author)
- Martin, A. (author)
- Marzec, J. (author)
- Matousek, J. (author)
- Matsuda, H. (author)
- Matsuda, T. (author)
- Meshcheryakov, G. (author)
- Meyer, W. (author)
- Michigami, T. (author)
- Mikhailov, Yu. V. (author)
- Miyachi, Y. (author)
- Nagaytsev, A. (author)
- Nagel, T. (author)
- Nerling, F. (author)
- Neyret, D. (author)
- Nikolaenko, V. I. (author)
- Novy, J. (author)
- Nowak, W. -D (author)
- Nunes, A. S. (author)
- Olshevsky, A. G. (author)
- Orlov, I. (author)
- Ostrick, M. (author)
- Panzieri, D. (author)
- Parsamyan, B. (author)
- Paul, S. (author)
- Peng, J. -C (author)
- Pereira, F. (author)
- Pesek, M. (author)
- Peshekhonov, D. V. (author)
- Platchkov, S. (author)
- Pochodzalla, J. (author)
- Polyakov, V. A. (author)
- Pretz, J. (author)
- Quaresma, M. (author)
- Quintans, C. (author)
- Ramos, S. (author)
- Regali, C. (author)
- Reicherz, G. (author)
- Riedl, C. (author)
- Rocco, E. (author)
- Rossiyskaya, N. S. (author)
- Ryabchikov, D. I. (author)
- Rychter, A. (author)
- Samoylenko, V. D. (author)
- Sandacz, A. (author)
- Santos, C. (author)
- Sarkar, S. (author)
- Savin, I. A. (author)
- Sbrizzai, G. (author)
- Schiavon, P. (author)
- Schmidt, K. (author)
- Schmieden, H. (author)
- Schönning, Karin (author)
- Schopferer, S. (author)
- Selyunin, A. (author)
- Shevchenko, O. Yu. (author)
- Silva, L. (author)
- Sinha, L. (author)
- Sirtl, S. (author)
- Slunecka, M. (author)
- Sozzi, F. (author)
- Srnka, A. (author)
- Stolarski, M. (author)
- Sulc, M. (author)
- Suzuki, H. (author)
- Szabelski, A. (author)
- Szameitat, T. (author)
- Sznajder, P. (author)
- Takekawa, S. (author)
- ter Wolbeek, J. (author)
- Tessaro, S. (author)
- Tessarotto, F. (author)
- Thibaud, F. (author)
- Tosello, F. (author)
- Tskhay, V. (author)
- Uhl, S. (author)
- Veloso, J. (author)
- Virius, M. (author)
- Weisrock, T. (author)
- Wilfert, M. (author)
- Windmolders, R. (author)
- Zaremba, K. (author)
- Zavertyaev, M. (author)
- Zemlyanichkina, E. (author)
- Ziembicki, M. (author)
- Zink, A. (author)
- show less...
- (publisher)
- 2016
- 2016
- English.
- In: Physics Letters B. - 0370-2693. ; 753, 18-28
- swepub:Mat__t
Abstract
Subject headings
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- New results for the double spin asymmetry A(1)(p) and the proton longitudinal spin structure function g(1)(p) are presented. They were obtained by the COMPASS Collaboration using polarised 200 GeV muons scattered off a longitudinally polarised NH3 target. The data were collected in 2011 and complement those recorded in 2007 at 160 GeV, in particular at lower values of x. They improve the statistical precision of g(1)(p)(x) by about a factor of two in the region x less than or similar to 0.02. A next-to-leading order QCD fit to the g(1) world data is performed. It leads to a new determination of the quark spin contribution to the nucleon spin, Delta Sigma, ranging from 0.26 to 0.36, and to a re-evaluation of the first moment of g(1)(p). The uncertainty of Delta Sigma is mostly due to the large uncertainty in the present determinations of the gluon helicity distribution. A new evaluation of the Bjorken sum rule based on the COMPASS results for the non-singlet structure function g(1)(NS) (x, Q(2)) yields as ratio of the axial and vector coupling constants vertical bar gA/gV vertical bar = 1.22 +/- 0.05 (stat.) +/- 0.10 (syst.), which validates the sum rule to an accuracy of about 9%.
Subject headings
- Natural Sciences (hsv)
- Physical Sciences (hsv)
- Subatomic Physics (hsv)
- Naturvetenskap (hsv)
- Fysik (hsv)
- Subatomär fysik (hsv)
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- Adolph, C.
- Akhunzyanovh, R.
- Alexeev, M. G.
- Alexeev, G. D.
- Amoroso, A.
- Andrieux, V.
- show more...
- Anosov, V.
- Austregesilo, A.
- Azevedo, C.
- Badelek, B.
- Balestra, F.
- Barth, J.
- Baum, G.
- Beck, R.
- Bedfer, Y.
- Bernhard, J.
- Bicker, K.
- Bielert, E. R.
- Birsa, R.
- Bisplinghoff, J.
- Bodlak, M.
- Boer, M.
- Bordalo, P.
- Bradamante, F.
- Braun, C.
- Bressan, A.
- Buechele, M.
- Burtin, E.
- Capozza, L.
- Chang, W. -C
- Chiosso, M.
- Choi, I.
- Chung, S. U.
- Cicuttin, A.
- Crespo, M. L.
- Curiel, Q.
- Dalla Torre, S.
- Dasgupta, S. S.
- Dasgupta, S.
- Denisov, O. Yu.
- Dhara, L.
- Donskov, S. V.
- Doshita, N.
- Duic, V.
- Dziewiecki, M.
- Efremov, A.
- Eversheim, P. D.
- Eyrich, W.
- Ferrero, A.
- Finger, M.
- Finger, M., Jr.
- Fischer, H.
- Franco, C.
- von Hohenesche, ...
- Friedrich, J. M.
- Frolov, V.
- Fuchey, E.
- Gautheron, F.
- Gavrichtchouk, O ...
- Gerassimov, S.
- Giordano, F.
- Gnesi, I.
- Gorzellik, M.
- Grabmueller, S.
- Grasso, A.
- Grosse-Perdekamp ...
- Grube, B.
- Grussenmeyer, T.
- Guskov, A.
- Haas, F.
- Hahne, D.
- von Harrach, D.
- Hashimoto, R.
- Heinsius, F. H.
- Herrmann, F.
- Hinterberger, F.
- Horikawa, N.
- d'Hose, N.
- Hsieh, C. -Yu
- Huber, S.
- Ishimoto, S.
- Ivanov, A.
- Ivanshin, Yu.
- Iwata, T.
- Jahn, R.
- Jary, V.
- Joerg, P.
- Joosten, R.
- Kabuss, E.
- Ketzer, B.
- Khaustov, G. V.
- Khokhlov, Yu. A.
- Kisselev, Yu.
- Klein, F.
- Klimaszewski, K.
- Koivuniemi, J. H ...
- Kolosov, V. N.
- Kondo, K.
- Koenigsmann, K.
- Konorov, I.
- Konstantinov, V. ...
- Kotzinian, A. M.
- Kouznetsov, O.
- Kraemer, M.
- Kremser, P.
- Krinner, F.
- Kroumchtein, Z. ...
- Kuchinski, N.
- Kunne, F.
- Kurek, K.
- Kurjata, R. P.
- Lednev, A. A.
- Lehmann, A.
- Levillain, M.
- Levorato, S.
- Lichtenstadt, J.
- Longo, R.
- Maggiora, A.
- Magnon, A.
- Makins, N.
- Makke, N.
- Mallot, G. K.
- Marchand, C.
- Martin, A.
- Marzec, J.
- Matousek, J.
- Matsuda, H.
- Matsuda, T.
- Meshcheryakov, G ...
- Meyer, W.
- Michigami, T.
- Mikhailov, Yu. V ...
- Miyachi, Y.
- Nagaytsev, A.
- Nagel, T.
- Nerling, F.
- Neyret, D.
- Nikolaenko, V. I ...
- Novy, J.
- Nowak, W. -D
- Nunes, A. S.
- Olshevsky, A. G.
- Orlov, I.
- Ostrick, M.
- Panzieri, D.
- Parsamyan, B.
- Paul, S.
- Peng, J. -C
- Pereira, F.
- Pesek, M.
- Peshekhonov, D. ...
- Platchkov, S.
- Pochodzalla, J.
- Polyakov, V. A.
- Pretz, J.
- Quaresma, M.
- Quintans, C.
- Ramos, S.
- Regali, C.
- Reicherz, G.
- Riedl, C.
- Rocco, E.
- Rossiyskaya, N. ...
- Ryabchikov, D. I ...
- Rychter, A.
- Samoylenko, V. D ...
- Sandacz, A.
- Santos, C.
- Sarkar, S.
- Savin, I. A.
- Sbrizzai, G.
- Schiavon, P.
- Schmidt, K.
- Schmieden, H.
- Schönning, Karin
- Schopferer, S.
- Selyunin, A.
- Shevchenko, O. Y ...
- Silva, L.
- Sinha, L.
- Sirtl, S.
- Slunecka, M.
- Sozzi, F.
- Srnka, A.
- Stolarski, M.
- Sulc, M.
- Suzuki, H.
- Szabelski, A.
- Szameitat, T.
- Sznajder, P.
- Takekawa, S.
- ter Wolbeek, J.
- Tessaro, S.
- Tessarotto, F.
- Thibaud, F.
- Tosello, F.
- Tskhay, V.
- Uhl, S.
- Veloso, J.
- Virius, M.
- Weisrock, T.
- Wilfert, M.
- Windmolders, R.
- Zaremba, K.
- Zavertyaev, M.
- Zemlyanichkina, ...
- Ziembicki, M.
- Zink, A.
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