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Leading-order determination of the gluon polarisation from semi-inclusive deep inelastic scattering data
- Adolph, C. (author)
- Aghasyan, M. (author)
- Akhunzyanov, R. (author)
- show more...
- Alexeev, M. G. (author)
- Alexeev, G. D. (author)
- Amoroso, A. (author)
- Andrieux, V. (author)
- Anfimov, N. V. (author)
- Anosov, V. (author)
- Augustyniak, W. (author)
- Austregesilo, A. (author)
- Azevedo, C. D. R. (author)
- Badelek, B. (author)
- Balestra, F. (author)
- Barth, J. (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)
- Buchele, M. (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)
- Dunnweber, W. (author)
- Dziewiecki, M. (author)
- Efremov, A. (author)
- Eversheim, P. D. (author)
- Eyrich, W. (author)
- Faessler, M. (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)
- Grabmuller, S. (author)
- Grasso, A. (author)
- Perdekamp, M. Grosse (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)
- Heitz, R. (author)
- Herrmann, F. (author)
- Hinterberger, F. (author)
- Horikawa, N. (author)
- d'Hose, N. (author)
- Hsieh, C. -Y (author)
- Huber, S. (author)
- Ishimoto, S. (author)
- Ivanov, A. (author)
- Ivanshin, Yu. (author)
- Iwata, T. (author)
- Jahn, R. (author)
- Jary, V. (author)
- Joosten, R. (author)
- Jorg, P. (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)
- Konigsmann, K. (author)
- Konorov, I. (author)
- Konstantinov, V. F. (author)
- Kotzinian, A. M. (author)
- Kouznetsov, O. M. (author)
- Kramer, M. (author)
- Kremser, P. (author)
- Krinner, F. (author)
- Kroumchtein, Z. V. (author)
- Kulinich, Y. (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)
- Marianski, B. (author)
- Martin, A. (author)
- Marzec, J. (author)
- Matousek, J. (author)
- Matsuda, H. (author)
- Matsuda, T. (author)
- Meshcheryakov, G. V. (author)
- Meyer, W. (author)
- Michigami, T. (author)
- Mikhailov, Yu. V. (author)
- Mikhasenko, M. (author)
- Miyachi, Y. (author)
- Montuenga, P. (author)
- Nagaytsev, A. (author)
- Nerling, F. (author)
- Neyret, D. (author)
- Nikolaenko, V. I. (author)
- Novy, J. (author)
- Nowak, W. -D (author)
- Nukazuka, G. (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)
- Roskot, M. (author)
- Rossiyskaya, N. S. (author)
- Ryabchikov, D. I. (author)
- Rybnikov, A. (author)
- Rychter, A. (author)
- Salac, R. (author)
- Samoylenko, V. D. (author)
- Sandacz, A. (author)
- Santos, C. (author)
- Sarkar, S. (author)
- Savin, I. A. (author)
- Sawada, T. (author)
- Sbrizzai, G. (author)
- Schiavon, P. (author)
- Schmidt, K. (author)
- Schmieden, H. (author)
- Schönning, Karin 1978- (author)
- Schopferer, S. (author)
- Seder, E. (author)
- Selyunin, A. (author)
- Shevchenko, O. Yu. (author)
- Silva, L. (author)
- Sinha, L. (author)
- Sirtl, S. (author)
- Slunecka, M. (author)
- Smolik, J. (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)
- Tasevsky, M. (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)
- Vondra, J. (author)
- Weisrock, T. (author)
- Wilfert, M. (author)
- ter Wolbeek, J. (author)
- Zaremba, K. (author)
- Zavada, P. (author)
- Zavertyaev, M. (author)
- Zemlyanichkina, E. (author)
- Ziembicki, M. (author)
- Zink, A. (author)
- show less...
- (publisher)
- SPRINGER 2017
- 2017
- English.
- In: European Physical Journal C. - 1434-6044. ; 77:4
- swepub:Mat__t
Abstract
Subject headings
Close
- Using a novel analysis technique, the gluon polarisation in the nucleon is re-evaluated using the longitudinal double-spin asymmetry measured in the cross section of semi-inclusive single-hadron muoproduction with photon virtuality Q(2) > 1 ( GeV/c)(2). The data were obtained by the COMPASS experiment at CERN using a 160 GeV/c polarised muon beam impinging on a polarised (LiD)-Li-6 target. By analysing the full range in hadron transverse momentum p(T), the different pT-dependences of the underlying processes are separated using a neural-network approach. In the absence of pQCD calculations at next-to-leading order in the selected kinematic domain, the gluon polarisation Delta g/g is evaluated at leading order in pQCD at a hard scale of mu(2) = < Q(2) > = 3( GeV/c)(2). It is determined in three intervals of the nucleon momentum fraction carried by gluons, x(g), covering the range 0.04< x(g)< 0.28 and does not exhibit a significant dependence on xg. The average over the three intervals, < Delta g/g > = 0.113 +/- 0.038(stat) +/- 0.036( syst) at < x(g) > approximate to 0.10, suggests that the gluon polarisation is positive in the measured x(g) range.
Subject headings
- Natural Sciences (hsv)
- Physical Sciences (hsv)
- Subatomic Physics (hsv)
- Naturvetenskap (hsv)
- Fysik (hsv)
- Subatomär fysik (hsv)
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- By the author/editor
- Adolph, C.
- Aghasyan, M.
- Akhunzyanov, R.
- Alexeev, M. G.
- Alexeev, G. D.
- Amoroso, A.
- show more...
- Andrieux, V.
- Anfimov, N. V.
- Anosov, V.
- Augustyniak, W.
- Austregesilo, A.
- Azevedo, C. D. R ...
- Badelek, B.
- Balestra, F.
- Barth, J.
- 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.
- Buchele, M.
- 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.
- Dunnweber, W.
- Dziewiecki, M.
- Efremov, A.
- Eversheim, P. D.
- Eyrich, W.
- Faessler, M.
- 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.
- Grabmuller, S.
- Grasso, A.
- Perdekamp, M. Gr ...
- Grube, B.
- Grussenmeyer, T.
- Guskov, A.
- Haas, F.
- Hahne, D.
- von Harrach, D.
- Hashimoto, R.
- Heinsius, F. H.
- Heitz, R.
- Herrmann, F.
- Hinterberger, F.
- Horikawa, N.
- d'Hose, N.
- Hsieh, C. -Y
- Huber, S.
- Ishimoto, S.
- Ivanov, A.
- Ivanshin, Yu.
- Iwata, T.
- Jahn, R.
- Jary, V.
- Joosten, R.
- Jorg, P.
- Kabuss, E.
- Ketzer, B.
- Khaustov, G. V.
- Khokhlov, Yu. A.
- Kisselev, Yu.
- Klein, F.
- Klimaszewski, K.
- Koivuniemi, J. H ...
- Kolosov, V. N.
- Kondo, K.
- Konigsmann, K.
- Konorov, I.
- Konstantinov, V. ...
- Kotzinian, A. M.
- Kouznetsov, O. M ...
- Kramer, M.
- Kremser, P.
- Krinner, F.
- Kroumchtein, Z. ...
- Kulinich, Y.
- 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.
- Marianski, B.
- Martin, A.
- Marzec, J.
- Matousek, J.
- Matsuda, H.
- Matsuda, T.
- Meshcheryakov, G ...
- Meyer, W.
- Michigami, T.
- Mikhailov, Yu. V ...
- Mikhasenko, M.
- Miyachi, Y.
- Montuenga, P.
- Nagaytsev, A.
- Nerling, F.
- Neyret, D.
- Nikolaenko, V. I ...
- Novy, J.
- Nowak, W. -D
- Nukazuka, G.
- 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.
- Roskot, M.
- Rossiyskaya, N. ...
- Ryabchikov, D. I ...
- Rybnikov, A.
- Rychter, A.
- Salac, R.
- Samoylenko, V. D ...
- Sandacz, A.
- Santos, C.
- Sarkar, S.
- Savin, I. A.
- Sawada, T.
- Sbrizzai, G.
- Schiavon, P.
- Schmidt, K.
- Schmieden, H.
- Schönning, Karin ...
- Schopferer, S.
- Seder, E.
- Selyunin, A.
- Shevchenko, O. Y ...
- Silva, L.
- Sinha, L.
- Sirtl, S.
- Slunecka, M.
- Smolik, J.
- Sozzi, F.
- Srnka, A.
- Stolarski, M.
- Sulc, M.
- Suzuki, H.
- Szabelski, A.
- Szameitat, T.
- Sznajder, P.
- Takekawa, S.
- Tasevsky, M.
- Tessaro, S.
- Tessarotto, F.
- Thibaud, F.
- Tosello, F.
- Tskhay, V.
- Uhl, S.
- Veloso, J.
- Virius, M.
- Vondra, J.
- Weisrock, T.
- Wilfert, M.
- ter Wolbeek, J.
- Zaremba, K.
- Zavada, P.
- Zavertyaev, M.
- Zemlyanichkina, ...
- Ziembicki, M.
- Zink, A.
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