Longitudinal double spin asymmetries in single hadron quasi-real photoproduction at high pT

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. Badełek; F. Balestra; J. Barth; R. Beck; Y. Bedfer; J. Bernhard; K. Bicker; E. R. Bielert; R. Birsa; J. Bisplinghoff; M. Bodlak; M. Boer; P. Bordalo; F. Bradamante; C. Braun; A. Bressan; M. Büchele; 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. Dünnweber; 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. Grabmüller; 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; P. Jörg; 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. Königsmann; I. Konorov; V. F. Konstantinov; A. M. Kotzinian; O. Kouznetsov; M. Krämer; 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. Matoušek; H. Matsuda; T. Matsuda; G. Meshcheryakov; W. Meyer; T. Michigami; Yu V. Mikhailov; Y. Miyachi; P. Montuenga; A. Nagaytsev; F. Nerling; D. Neyret; V. I. Nikolaenko; J. Nový; 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. Pešek; 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. Schönning; 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; P. Sznajder; S. Takekawa; S. Tessaro; F. Tessarotto; F. Thibaud; F. Tosello; V. Tskhay; S. Uhl; J. Veloso; M. Virius; T. Weisrock; M. Wilfert; J. ter Wolbeek; K. Zaremba; M. Zavertyaev; E. Zemlyanichkina; M. Ziembicki; A. Zink

doi:10.1016/j.physletb.2015.12.035

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. Badełek
, F. Balestra
, J. Barth
, R. Beck
, Y. Bedfer
, J. Bernhard
, K. Bicker
, E. R. Bielert
, R. Birsa
, J. Bisplinghoff

M. Bodlak, M. Boer, P. Bordalo, F. Bradamante, C. Braun, A. Bressan, M. Büchele, 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. Dünnweber, 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. Grabmüller, 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, P. Jörg, 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. Königsmann, I. Konorov, V. F. Konstantinov, A. M. Kotzinian, O. Kouznetsov, M. Krämer, 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. Matoušek, H. Matsuda, T. Matsuda, G. Meshcheryakov, W. Meyer, T. Michigami, Yu V. Mikhailov, Y. Miyachi, P. Montuenga, A. Nagaytsev, F. Nerling, D. Neyret, V. I. Nikolaenko, J. Nový, 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. Pešek, 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. Schönning, 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, P. Sznajder, S. Takekawa, S. Tessaro, F. Tessarotto, F. Thibaud, F. Tosello, V. Tskhay, S. Uhl, J. Veloso, M. Virius, T. Weisrock, M. Wilfert, J. ter Wolbeek, K. Zaremba, M. Zavertyaev, E. Zemlyanichkina, M. Ziembicki, A. Zink

Chair of Physics I

Friedrich-Alexander Universitat Erlangen-Nurnberg (FAU)
Joint Inst. for Nuclear Research
University of Torino
INFN Sez. di Torino
CEA Saclay
National Center for Nuclear Research (NCBJ)
Technical University of Munich
University of Aveiro
University of Warsaw
Rheinische Friedrich-Wilhelms-Universität Bonn
European Organization for Nuclear Research
Johannes Gutenberg University
INFN- Sezione di Trieste
Charles University in Prague
LIP - Lisboa
Instituto Superior Técnico
University of Trieste Via A
Albert-Ludwigs-Universität Freiburg
Academia Sinica Taipei
University of Illinois
Pusan National University
Brookhaven National Laboratory
ICTP
Matrivani Institute of Experimental Research & Education
Institute for High Energy Physics (IHEP)
Yamagata University
Warsaw Institute of Technology
Max-Planck-lnstitut für Kohlenforschung
P.N. Lebedev Physical Institute of the Russian Academy of Sciences
Nagoya University
Chubu University
High Energy Accelerator Research Organization (KEK)
Czech Technical University in Prague
Moscow Institute of Physics and Technology
Typesafe AB
Tel Aviv University
University of Miyazaki
University of Eastern Piedmont
RWTH Aachen University
Uppsala University
Institute of Scientific Instruments of the Academy of Sciences of the Czech Republic
Technical University of Liberec

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

We measured the longitudinal double spin asymmetries A_LL for single hadron muoproduction off protons and deuterons at photon virtuality Q²<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 ⁶LiD or NH₃ targets. The experimental asymmetries are compared to next-to-leading order pQCD calculations, and are sensitive to the gluon polarisation δG inside the nucleon in the range of the nucleon momentum fraction carried by gluons 0.05<x_g<0.2.

Original language	English
Pages (from-to)	573-579
Number of pages	7
Journal	Physics Letters B
Volume	753
DOIs	https://doi.org/10.1016/j.physletb.2015.12.035
State	Published - 10 Feb 2016

Keywords

COMPASS
Deep inelastic scattering
Double spin asymmetry
High p
δG

Access to Document

10.1016/j.physletb.2015.12.035

Cite this

Adolph, C., Akhunzyanov, R., Alexeev, M. G., Alexeev, G. D., Amoroso, A., Andrieux, V., Anosov, V., Augustyniak, W., Austregesilo, A., Azevedo, C. D. R., Badełek, B., Balestra, F., Barth, J., Beck, R., Bedfer, Y., Bernhard, J., Bicker, K., Bielert, E. R., Birsa, R., ... Zink, A. (2016). Longitudinal double spin asymmetries in single hadron quasi-real photoproduction at high p_T. Physics Letters B, 753, 573-579. https://doi.org/10.1016/j.physletb.2015.12.035

@article{237b76c7ed8942c18e57280b63c6e68c,

title = "Longitudinal double spin asymmetries in single hadron quasi-real photoproduction at high pT",

abstract = "We measured the longitudinal double spin asymmetries ALL for single hadron muoproduction off protons and deuterons at photon virtuality Q2<1(GeV/c)2 for transverse hadron momenta pT 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 6LiD or NH3 targets. The experimental asymmetries are compared to next-to-leading order pQCD calculations, and are sensitive to the gluon polarisation δG inside the nucleon in the range of the nucleon momentum fraction carried by gluons 0.05g<0.2.",

keywords = "COMPASS, Deep inelastic scattering, Double spin asymmetry, High p, δG",

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

note = "Publisher Copyright: {\textcopyright} 2015 The Authors.",

year = "2016",

month = feb,

day = "10",

doi = "10.1016/j.physletb.2015.12.035",

language = "English",

volume = "753",

pages = "573--579",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier B.V.",

}

Adolph, C, Akhunzyanov, R, Alexeev, MG, Alexeev, GD, Amoroso, A, Andrieux, V, Anosov, V, Augustyniak, W, Austregesilo, A, Azevedo, CDR, Badełek, B, Balestra, F, Barth, J, Beck, R, Bedfer, Y, Bernhard, J, Bicker, K, Bielert, ER, Birsa, R, Bisplinghoff, J, Bodlak, M, Boer, M, Bordalo, P, Bradamante, F, Braun, C, Bressan, A, Büchele, M, Burtin, E, Chang, WC, Chiosso, M, Choi, I, Chung, SU, Cicuttin, A, Crespo, ML, Curiel, Q, Dalla Torre, S, Dasgupta, SS, Dasgupta, S, Denisov, OY, Dhara, L, Donskov, SV, Doshita, N, Duic, V, Dünnweber, W, Dziewiecki, M, Efremov, A, Eversheim, PD, Eyrich, W, Faessler, M, Ferrero, A, Finger, M, Finger, M, Fischer, H, Franco, C, du Fresne von Hohenesche, N, Friedrich, JM, Frolov, V, Fuchey, E, Gautheron, F, Gavrichtchouk, OP, Gerassimov, S, Giordano, F, Gnesi, I, Gorzellik, M, Grabmüller, S, Grasso, A, Grosse Perdekamp, M, Grube, B, Grussenmeyer, T, Guskov, A, Haas, F, Hahne, D, von Harrach, D, Hashimoto, R, Heinsius, FH, Herrmann, F, Hinterberger, F, Horikawa, N, d'Hose, N, Hsieh, CY, Huber, S, Ishimoto, S, Ivanov, A, Ivanshin, Y, Iwata, T, Jahn, R, Jary, V, Joosten, R, Jörg, P, Kabuß, E, Ketzer, B, Khaustov, GV, Khokhlov, YA, Kisselev, Y, Klein, F, Klimaszewski, K, Koivuniemi, JH, Kolosov, VN, Kondo, K, Königsmann, K, Konorov, I, Konstantinov, VF, Kotzinian, AM, Kouznetsov, O, Krämer, M, Kremser, P, Krinner, F, Kroumchtein, ZV, Kuchinski, N, Kuhn, R, Kunne, F, Kurek, K, Kurjata, RP, Lednev, AA, Lehmann, A, Levillain, M, Levorato, S, Lichtenstadt, J, Longo, R, Maggiora, A, Magnon, A, Makins, N, Makke, N, Mallot, GK, Marchand, C, Marianski, B, Martin, A, Marzec, J, Matoušek, J, Matsuda, H, Matsuda, T, Meshcheryakov, G, Meyer, W, Michigami, T, Mikhailov, YV, Miyachi, Y, Montuenga, P, Nagaytsev, A, Nerling, F, Neyret, D, Nikolaenko, VI, Nový, J, Nowak, WD, Nukazuka, G, Nunes, AS, Olshevsky, AG, Orlov, I, Ostrick, M, Panzieri, D, Parsamyan, B, Paul, S, Peng, JC, Pereira, F, Pešek, M, Peshekhonov, DV, Platchkov, S, Pochodzalla, J, Polyakov, VA, Pretz, J, Quaresma, M, Quintans, C, Ramos, S, Regali, C, Reicherz, G, Riedl, C, Rossiyskaya, NS, Ryabchikov, DI, Rychter, A, Samoylenko, VD, Sandacz, A, Santos, C, Sarkar, S, Savin, IA, Sbrizzai, G, Schiavon, P, Schmidt, K, Schmieden, H, Schönning, K, Schopferer, S, Selyunin, A, Shevchenko, OY, 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, Tessaro, S, Tessarotto, F, Thibaud, F, Tosello, F, Tskhay, V, Uhl, S, Veloso, J, Virius, M, Weisrock, T, Wilfert, M, ter Wolbeek, J, Zaremba, K, Zavertyaev, M, Zemlyanichkina, E, Ziembicki, M & Zink, A 2016, 'Longitudinal double spin asymmetries in single hadron quasi-real photoproduction at high p_T', Physics Letters B, vol. 753, pp. 573-579. https://doi.org/10.1016/j.physletb.2015.12.035

TY - JOUR

T1 - Longitudinal double spin asymmetries in single hadron quasi-real photoproduction at high pT

AU - Adolph, C.

AU - Akhunzyanov, R.

AU - Alexeev, M. G.

AU - Alexeev, G. D.

AU - Amoroso, A.

AU - Andrieux, V.

AU - Anosov, V.

AU - Augustyniak, W.

AU - Austregesilo, A.

AU - Azevedo, C. D.R.

AU - Badełek, B.

AU - Balestra, F.

AU - Barth, J.

AU - Beck, R.

AU - Bedfer, Y.

AU - Bernhard, J.

AU - Bicker, K.

AU - Bielert, E. R.

AU - Birsa, R.

AU - Bisplinghoff, J.

AU - Bodlak, M.

AU - Boer, M.

AU - Bordalo, P.

AU - Bradamante, F.

AU - Braun, C.

AU - Bressan, A.

AU - Büchele, M.

AU - Burtin, E.

AU - Chang, W. C.

AU - Chiosso, M.

AU - Choi, I.

AU - Chung, S. U.

AU - Cicuttin, A.

AU - Crespo, M. L.

AU - Curiel, Q.

AU - Dalla Torre, S.

AU - Dasgupta, S. S.

AU - Dasgupta, S.

AU - Denisov, O. Yu

AU - Dhara, L.

AU - Donskov, S. V.

AU - Doshita, N.

AU - Duic, V.

AU - Dünnweber, W.

AU - Dziewiecki, M.

AU - Efremov, A.

AU - Eversheim, P. D.

AU - Eyrich, W.

AU - Faessler, M.

AU - Ferrero, A.

AU - Finger, M.

AU - Fischer, H.

AU - Franco, C.

AU - du Fresne von Hohenesche, N.

AU - Friedrich, J. M.

AU - Frolov, V.

AU - Fuchey, E.

AU - Gautheron, F.

AU - Gavrichtchouk, O. P.

AU - Gerassimov, S.

AU - Giordano, F.

AU - Gnesi, I.

AU - Gorzellik, M.

AU - Grabmüller, S.

AU - Grasso, A.

AU - Grosse Perdekamp, M.

AU - Grube, B.

AU - Grussenmeyer, T.

AU - Guskov, A.

AU - Haas, F.

AU - Hahne, D.

AU - von Harrach, D.

AU - Hashimoto, R.

AU - Heinsius, F. H.

AU - Herrmann, F.

AU - Hinterberger, F.

AU - Horikawa, N.

AU - d'Hose, N.

AU - Hsieh, C. Y.

AU - Huber, S.

AU - Ishimoto, S.

AU - Ivanov, A.

AU - Ivanshin, Yu

AU - Iwata, T.

AU - Jahn, R.

AU - Jary, V.

AU - Joosten, R.

AU - Jörg, P.

AU - Kabuß, E.

AU - Ketzer, B.

AU - Khaustov, G. V.

AU - Khokhlov, Yu A.

AU - Kisselev, Yu

AU - Klein, F.

AU - Klimaszewski, K.

AU - Koivuniemi, J. H.

AU - Kolosov, V. N.

AU - Kondo, K.

AU - Königsmann, K.

AU - Konorov, I.

AU - Konstantinov, V. F.

AU - Kotzinian, A. M.

AU - Kouznetsov, O.

AU - Krämer, M.

AU - Kremser, P.

AU - Krinner, F.

AU - Kroumchtein, Z. V.

AU - Kuchinski, N.

AU - Kuhn, R.

AU - Kunne, F.

AU - Kurek, K.

AU - Kurjata, R. P.

AU - Lednev, A. A.

AU - Lehmann, A.

AU - Levillain, M.

AU - Levorato, S.

AU - Lichtenstadt, J.

AU - Longo, R.

AU - Maggiora, A.

AU - Magnon, A.

AU - Makins, N.

AU - Makke, N.

AU - Mallot, G. K.

AU - Marchand, C.

AU - Marianski, B.

AU - Martin, A.

AU - Marzec, J.

AU - Matoušek, J.

AU - Matsuda, H.

AU - Matsuda, T.

AU - Meshcheryakov, G.

AU - Meyer, W.

AU - Michigami, T.

AU - Mikhailov, Yu V.

AU - Miyachi, Y.

AU - Montuenga, P.

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PY - 2016/2/10

Y1 - 2016/2/10

N2 - We measured the longitudinal double spin asymmetries ALL for single hadron muoproduction off protons and deuterons at photon virtuality Q2<1(GeV/c)2 for transverse hadron momenta pT 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 6LiD or NH3 targets. The experimental asymmetries are compared to next-to-leading order pQCD calculations, and are sensitive to the gluon polarisation δG inside the nucleon in the range of the nucleon momentum fraction carried by gluons 0.05g<0.2.

AB - We measured the longitudinal double spin asymmetries ALL for single hadron muoproduction off protons and deuterons at photon virtuality Q2<1(GeV/c)2 for transverse hadron momenta pT 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 6LiD or NH3 targets. The experimental asymmetries are compared to next-to-leading order pQCD calculations, and are sensitive to the gluon polarisation δG inside the nucleon in the range of the nucleon momentum fraction carried by gluons 0.05g<0.2.

KW - COMPASS

KW - Deep inelastic scattering

KW - Double spin asymmetry

KW - High p

KW - δG

UR - https://www.scopus.com/pages/publications/84953889300

U2 - 10.1016/j.physletb.2015.12.035

DO - 10.1016/j.physletb.2015.12.035

M3 - Article

AN - SCOPUS:84953889300

SN - 0370-2693

VL - 753

SP - 573

EP - 579

JO - Physics Letters B

JF - Physics Letters B

ER -

Longitudinal double spin asymmetries in single hadron quasi-real photoproduction at high p_T

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