Longitudinal Double Spin Asymmetries In Single Hadron Quasi-Real Photoproduction At High P(T)

C. Adolph, R. Akhunzyanov, M. G. Alexeev, G. D. Alexeev, A. Amoroso, V. Andrieux, V. Anosov,W. Augustyniak,A. Austregesilo,C. D. R. Azevedo,B. Badelek,F. Balestra,J. Barth,R. Beck, Y. Bedfer,J. Bernhard, K. Bicker, E. R. Bielert,R. Birsa, J. Bisplinghoff, M. Bodlak,M. Boer, R. Bordalo,F. Bradamante,C. Braun,A. Bressan, M. Buechele,E. Burtin,W. -C. Chang, M. Chiosso,I. Choi, S. -U. Chung,A. Cicuttin,M. L. Crespo, Q. Curiel,S. Dalla Torre, S. S. Dasgupta, S. Dasgupta,O. Yu. Denisov,L. Dhara, S. V. Donskov, N. Doshita, V. Duic, W. Duennweber,M. Dziewiecki,A. Efremov, P. D. Eversheim, W. Eyrich, M. Faessler,A. Ferrero,M. Finger,M. Finger,H. Fischer,C. Franco,N. Du Fresne Von Hohenesche,J. M. Friedrich, V. Frolov,E. Fuchey,F. Gautheron,O. P. Gavrichtchouk,S. Gerassimov,F. Giordano,I. Gnesi, M. Gorzellik, S. Grabmueller, A. Grasso,M. Grosse Perdekamp,B. Grube,T. Grussenmeyer,A. Guskov, F. Haas, D. Hahne,D. Von Harrach,R. Hashimoto,F. H. Heinsius,F. Herrmann,F. Hinterberger,N. Horikawa,N. D'Hose,C. -Y. Hsieh,S. Huber,S. Ishimoto,A. Ivanov,Yu. Ivanshin,T. Iwata,R. Jahn, V. Jary, R. Joosten, R. Joerg, E. Kabuss,B. Ketzer, G. V. Khaustov,Yu. A. Khokhlov,Yu. Kisselev, F. Klein,K. Klimaszewski,J. H. Koivuniemi, V. N. Kolosov,K. Kondo, K. Koenigsmann,I. Konorov,V. F. Konstantinov, A. M. Kotzinianan,O. Kouznetsov, M. Kraemer, P. Kremser, F. Krinner, Z. V. Kroumchtein,N. Kuchinski,R. Kuhn, F. Kunne, K. Kurek,R. P. Kurjata, A. A. Lednev,A. Lehmann,M. Levillain, S. Levorato,J. Lichtenstadt,R. Longo,A. Maggiora, A. Magnon, N. Makins,N. Makke,G. K. Mallot,C. Marchand, B. Marianski,A. Martin,J. Marzec,J. Matousek,H. Matsuda,T. Matsuda, G. Meshcheryakov,W. Meyer, T. Michigami,Yu. V. Mikhailov,Y. Miyachi, R. Montuenga, A. Nagaytsev, F. Nerling,D. Neyret,V. I. Nikolaenko,J. Novy,W. -D. Nowak,G. Nukazuka,A. S. Nunes, A. G. Olshevsky,I. Orlov,M. Ostrick, D. Panzieri,B. Parsamyan,S. Paul,J. -C. Peng,F. Pereira,M. Pesek, D. V. Peshekhonov,S. Platchkov, J. Pochodzalla,V. A. Polyakov,J. Pretz,M. Quaresma,C. Quintans,S. Ramos, C. Regali, G. Reicherz,C. Riedl,N. S. Rossiyskaya, D. I. Ryabchikov,A. Rychter,V. D. Samoylenko, A. Sandacz, C. Santos,S. Sarkar, I. A. Savin,G. Sbrizzai, P. Schiavon,K. Schmidt, H. Schmieden, K. Schoenning, S. Schopferer, A. Selyunin,O. Yu. Shevchenko, L. Silva,L. Sinha, S. Sirtl,M. Slunecka, F. Sozzi,A. Srnka,M. Stolarski,M. Sulc, H. Suzuki,A. Szabelski, T. Szameitat, R. Sznajder,S. Takekawa,S. Tessaro,F. Tessarotto, F. Thibaud,F. Tosello, V. Tskhay, S. Uhl,J. Veloso,M. Virius, T. Weisrock, M. Willert,J. Ter Wolbeek,K. Zaremba,M. Zavertyaev, E. Zemlyanichkina,M. Ziembicki,A. Zink

PHYSICS LETTERS B(2016)

引用 7|浏览109
暂无评分
摘要
We measured the longitudinal double spin asymmetries A(LL) for single hadron muoproduction off protons and deuterons at photon virtuality Q (2) < 1 (GeV/c)(2) for transverse hadron momenta p(T) in the range 1 GeV/c to 4 GeV/c. They were determined using COMPASS data taken with a polarised muon beam of 160 GeV/c or 200 GeV/c impinging on polarised (LiD)-Li-6 or NH3 targets. The experimental asymmetries are compared to next-to-leading order pQCD calculations, and are sensitive to the gluon polarisation Lambda G inside the nucleon in the range of the nucleon momentum fraction carried by gluons 0.05 < x(g) < 0.2. (C) 2015 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
更多
查看译文
关键词
COMPASS,Deep inelastic scattering,Double spin asymmetry
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要