Azimuthal asymmetries of charged hadrons produced by high-energy muons scattered off longitudinally polarised deuterons

M. G. Alekseev; V. Yu Alexakhin; Yu Alexandrov; G. D. Alexeev; A. Amoroso; A. Austregesilo; B. Badełek; F. Balestra; J. Barth; G. Baum; Y. Bedfer; J. Bernhard; R. Bertini; M. Bettinelli; R. Birsa; J. Bisplinghoff; P. Bordalo; F. Bradamante; A. Bravar; A. Bressan; G. Brona; E. Burtin; M. P. Bussa; D. Chaberny; M. Chiosso; S. U. Chung; A. Cicuttin; M. Colantoni; M. L. Crespo; S. Dalla Torre; S. Das; S. S. Dasgupta; O. Yu Denisov; L. Dhara; V. Diaz; S. V. Donskov; N. Doshita; V. Duic; W. Dünnweber; A. Efremov; A. El Alaoui; P. D. Eversheim; W. Eyrich; M. Faessler; A. Ferrero; A. Filin; M. Finger; M. Finger; H. Fischer; C. Franco; J. M. Friedrich; R. Garfagnini; F. Gautheron; O. P. Gavrichtchouk; R. Gazda; S. Gerassimov; R. Geyer; M. Giorgi; I. Gnesi; B. Gobbo; S. Goertz; S. Grabmüller; A. Grasso; B. Grube; R. Gushterski; A. Guskov; F. Haas; D. von Harrach; T. Hasegawa; F. H. Heinsius; F. Herrmann; C. Heß; F. Hinterberger; N. Horikawa; Ch Höppner; N. d'Hose; C. Ilgner; S. Ishimoto; O. Ivanov; Yu Ivanshin; T. Iwata; R. Jahn; P. Jasinski; G. Jegou; R. Joosten; E. Kabuß; D. Kang; B. Ketzer; G. V. Khaustov; Yu A. Khokhlov; Yu Kisselev; F. Klein; K. Klimaszewski; S. Koblitz; J. H. Koivuniemi; V. N. Kolosov; K. Kondo; K. Königsmann; R. Konopka; I. Konorov; V. F. Konstantinov; A. Korzenev; A. M. Kotzinian; O. Kouznetsov; K. Kowalik; M. Krämer; A. Kral; Z. V. Kroumchtein; R. Kuhn; F. Kunne; K. Kurek; L. Lauser; J. M. Le Goff; A. A. Lednev; A. Lehmann; S. Levorato; J. Lichtenstadt; T. Liska; A. Maggiora; M. Maggiora; A. Magnon; G. K. Mallot; A. Mann; C. Marchand; A. Martin; J. Marzec; F. Massmann; T. Matsuda; W. Meyer; T. Michigami; Yu V. Mikhailov; M. A. Moinester; A. Mutter; A. Nagaytsev; T. Nagel; J. Nassalski; T. Negrini; F. Nerling; S. Neubert; D. Neyret; V. I. Nikolaenko; A. S. Nunes; A. G. Olshevsky; M. Ostrick; A. Padee; R. Panknin; D. Panzieri; B. Parsamyan; S. Paul; B. Pawlukiewicz-Kaminska; E. Perevalova; G. Pesaro; D. V. Peshekhonov; G. Piragino; S. Platchkov; J. Pochodzalla; J. Polak; V. A. Polyakov; G. Pontecorvo; J. Pretz; C. Quintans; J. F. Rajotte; S. Ramos; V. Rapatsky; G. Reicherz; A. Richter; F. Robinet; E. Rocco; E. Rondio; D. I. Ryabchikov; V. D. Samoylenko; A. Sandacz; H. Santos; M. G. Sapozhnikov; S. Sarkar; I. A. Savin; G. Sbrizzai; P. Schiavon; C. Schill; T. Schlüter; L. Schmitt; S. Schopferer; W. Schröder; O. Yu Shevchenko; H. W. Siebert; L. Silva; L. Sinha; A. N. Sissakian; M. Slunecka; G. I. Smirnov; S. Sosio; F. Sozzi; A. Srnka; M. Stolarski; M. Sulc; R. Sulej; S. Takekawa; S. Tessaro; F. Tessarotto; A. Teufel; L. G. Tkatchev; S. Uhl; I. Uman; M. Virius; N. V. Vlassov; A. Vossen; Q. Weitzel; R. Windmolders; W. Wiślicki; H. Wollny; K. Zaremba; M. Zavertyaev; E. Zemlyanichkina; M. Ziembicki; J. Zhao; N. Zhuravlev; A. Zvyagin

doi:10.1140/epjc/s10052-010-1461-9

Azimuthal asymmetries of charged hadrons produced by high-energy muons scattered off longitudinally polarised deuterons

M. G. Alekseev, V. Yu Alexakhin, Yu Alexandrov, G. D. Alexeev, A. Amoroso, A. Austregesilo, B. Badełek, F. Balestra, J. Barth, G. Baum, Y. Bedfer, J. Bernhard, R. Bertini, M. Bettinelli, R. Birsa, J. Bisplinghoff, P. Bordalo, F. Bradamante, A. Bravar, A. BressanG. Brona, E. Burtin, M. P. Bussa, D. Chaberny, M. Chiosso, S. U. Chung, A. Cicuttin, M. Colantoni, M. L. Crespo, S. Dalla Torre, S. Das, S. S. Dasgupta, O. Yu Denisov, L. Dhara, V. Diaz, S. V. Donskov, N. Doshita, V. Duic, W. Dünnweber, A. Efremov, A. El Alaoui, P. D. Eversheim, W. Eyrich, M. Faessler, A. Ferrero, A. Filin, M. Finger, M. Finger, H. Fischer, C. Franco, J. M. Friedrich, R. Garfagnini, F. Gautheron, O. P. Gavrichtchouk, R. Gazda, S. Gerassimov, R. Geyer, M. Giorgi, I. Gnesi, B. Gobbo, S. Goertz, S. Grabmüller, A. Grasso, B. Grube, R. Gushterski, A. Guskov, F. Haas, D. von Harrach, T. Hasegawa, F. H. Heinsius, F. Herrmann, C. Heß, F. Hinterberger, N. Horikawa, Ch Höppner, N. d'Hose, C. Ilgner, S. Ishimoto, O. Ivanov, Yu Ivanshin, T. Iwata, R. Jahn, P. Jasinski, G. Jegou, R. Joosten, E. Kabuß, D. Kang, B. Ketzer, G. V. Khaustov, Yu A. Khokhlov, Yu Kisselev, F. Klein, K. Klimaszewski, S. Koblitz, J. H. Koivuniemi, V. N. Kolosov, K. Kondo, K. Königsmann, R. Konopka, I. Konorov, V. F. Konstantinov, A. Korzenev, A. M. Kotzinian, O. Kouznetsov, K. Kowalik, M. Krämer, A. Kral, Z. V. Kroumchtein, R. Kuhn, F. Kunne, K. Kurek, L. Lauser, J. M. Le Goff, A. A. Lednev, A. Lehmann, S. Levorato, J. Lichtenstadt, T. Liska, A. Maggiora, M. Maggiora, A. Magnon, G. K. Mallot, A. Mann, C. Marchand, A. Martin, J. Marzec, F. Massmann, T. Matsuda, W. Meyer, T. Michigami, Yu V. Mikhailov, M. A. Moinester, A. Mutter, A. Nagaytsev, T. Nagel, J. Nassalski, T. Negrini, F. Nerling, S. Neubert, D. Neyret, V. I. Nikolaenko, A. S. Nunes, A. G. Olshevsky, M. Ostrick, A. Padee, R. Panknin, D. Panzieri, B. Parsamyan, S. Paul, B. Pawlukiewicz-Kaminska, E. Perevalova, G. Pesaro, D. V. Peshekhonov, G. Piragino, S. Platchkov, J. Pochodzalla, J. Polak, V. A. Polyakov, G. Pontecorvo, J. Pretz, C. Quintans, J. F. Rajotte, S. Ramos, V. Rapatsky, G. Reicherz, A. Richter, F. Robinet, E. Rocco, E. Rondio, D. I. Ryabchikov, V. D. Samoylenko, A. Sandacz, H. Santos, M. G. Sapozhnikov, S. Sarkar, I. A. Savin, G. Sbrizzai, P. Schiavon, C. Schill, T. Schlüter, L. Schmitt, S. Schopferer, W. Schröder, O. Yu Shevchenko, H. W. Siebert, L. Silva, L. Sinha, A. N. Sissakian, M. Slunecka, G. I. Smirnov, S. Sosio, F. Sozzi, A. Srnka, M. Stolarski, M. Sulc, R. Sulej, S. Takekawa, S. Tessaro, F. Tessarotto, A. Teufel, L. G. Tkatchev, S. Uhl, I. Uman, M. Virius, N. V. Vlassov, A. Vossen, Q. Weitzel, R. Windmolders, W. Wiślicki, H. Wollny, K. Zaremba, M. Zavertyaev, E. Zemlyanichkina, M. Ziembicki, J. Zhao, N. Zhuravlev, A. Zvyagin

School of Physics and Astronomy

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

34 Scopus citations

Abstract

Azimuthal asymmetries in semi-inclusive production of positive (h⁺) and negative hadrons (h^-) have been measured by scattering 160 GeV muons off longitudinally polarised deuterons at CERN. The asymmetries were decomposed in several terms according to their expected modulation in the azimuthal angle φ of the outgoing hadron. Each term receives contributions from one or several spin and transverse-momentum-dependent parton distribution and fragmentation functions. The amplitudes of all φ-modulation terms of the hadron asymmetries integrated over the kinematic variables are found to be consistent with zero within statistical errors, while the constant terms are nonzero and equal for h⁺ and h^- within the statistical errors. The dependencies of the φ-modulated terms versus the Bjorken momentum fraction x, the hadron fractional momentum z, and the hadron transverse momentum P^T_h were studied. The x dependence of the constant terms for both positive and negative hadrons is in agreement with the longitudinal double-spin hadron asymmetries, measured in semi-inclusive deep-inelastic scattering. The x dependence of the sin φ-modulation term is less pronounced than that in the corresponding HERMES data. All other dependencies of the φ-modulation amplitudes are consistent with zero within the statistical errors.

Original language	English
Pages (from-to)	39-49
Number of pages	11
Journal	European Physical Journal C
Volume	70
Issue number	1
DOIs	https://doi.org/10.1140/epjc/s10052-010-1461-9
State	Published - Nov 2010

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10.1140/epjc/s10052-010-1461-9

Cite this

Alekseev, M. G., Alexakhin, V. Y., Alexandrov, Y., Alexeev, G. D., Amoroso, A., Austregesilo, A., Badełek, B., Balestra, F., Barth, J., Baum, G., Bedfer, Y., Bernhard, J., Bertini, R., Bettinelli, M., Birsa, R., Bisplinghoff, J., Bordalo, P., Bradamante, F., Bravar, A., ... Zvyagin, A. (2010). Azimuthal asymmetries of charged hadrons produced by high-energy muons scattered off longitudinally polarised deuterons. European Physical Journal C, 70(1), 39-49. https://doi.org/10.1140/epjc/s10052-010-1461-9

@article{43f8f2216e994b378f719ee9bec7d6a2,

title = "Azimuthal asymmetries of charged hadrons produced by high-energy muons scattered off longitudinally polarised deuterons",

abstract = "Azimuthal asymmetries in semi-inclusive production of positive (h+) and negative hadrons (h-) have been measured by scattering 160 GeV muons off longitudinally polarised deuterons at CERN. The asymmetries were decomposed in several terms according to their expected modulation in the azimuthal angle φ of the outgoing hadron. Each term receives contributions from one or several spin and transverse-momentum-dependent parton distribution and fragmentation functions. The amplitudes of all φ-modulation terms of the hadron asymmetries integrated over the kinematic variables are found to be consistent with zero within statistical errors, while the constant terms are nonzero and equal for h+ and h- within the statistical errors. The dependencies of the φ-modulated terms versus the Bjorken momentum fraction x, the hadron fractional momentum z, and the hadron transverse momentum PTh were studied. The x dependence of the constant terms for both positive and negative hadrons is in agreement with the longitudinal double-spin hadron asymmetries, measured in semi-inclusive deep-inelastic scattering. The x dependence of the sin φ-modulation term is less pronounced than that in the corresponding HERMES data. All other dependencies of the φ-modulation amplitudes are consistent with zero within the statistical errors.",

author = "Alekseev, {M. G.} and Alexakhin, {V. Yu} and Yu Alexandrov and Alexeev, {G. D.} and A. Amoroso and A. Austregesilo and B. Bade{\l}ek and F. Balestra and J. Barth and G. Baum and Y. Bedfer and J. Bernhard and R. Bertini and M. Bettinelli and R. Birsa and J. Bisplinghoff and P. Bordalo and F. Bradamante and A. Bravar and A. Bressan and G. Brona and E. Burtin and Bussa, {M. P.} and D. Chaberny and M. Chiosso and Chung, {S. U.} and A. Cicuttin and M. Colantoni and Crespo, {M. L.} and {Dalla Torre}, S. and S. Das and Dasgupta, {S. S.} and Denisov, {O. Yu} and L. Dhara and V. Diaz and Donskov, {S. V.} and N. Doshita and V. Duic and W. D{\"u}nnweber and A. Efremov and {El Alaoui}, A. and Eversheim, {P. D.} and W. Eyrich and M. Faessler and A. Ferrero and A. Filin and M. Finger and M. Finger and H. Fischer and C. Franco and Friedrich, {J. M.} and R. Garfagnini and F. Gautheron and Gavrichtchouk, {O. P.} and R. Gazda and S. Gerassimov and R. Geyer and M. Giorgi and I. Gnesi and B. Gobbo and S. Goertz and S. Grabm{\"u}ller and A. Grasso and B. Grube and R. Gushterski and A. Guskov and F. Haas and {von Harrach}, D. and T. Hasegawa and Heinsius, {F. H.} and F. Herrmann and C. He{\ss} and F. Hinterberger and N. Horikawa and Ch H{\"o}ppner and N. d'Hose and C. Ilgner and S. Ishimoto and O. Ivanov and Yu Ivanshin and T. Iwata and R. Jahn and P. Jasinski and G. Jegou and R. Joosten and E. Kabu{\ss} and D. Kang and B. Ketzer and Khaustov, {G. V.} and Khokhlov, {Yu A.} and Yu Kisselev and F. Klein and K. Klimaszewski and S. Koblitz and Koivuniemi, {J. H.} and Kolosov, {V. N.} and K. Kondo and K. K{\"o}nigsmann and R. Konopka and I. Konorov and Konstantinov, {V. F.} and A. Korzenev and Kotzinian, {A. M.} and O. Kouznetsov and K. Kowalik and M. Kr{\"a}mer and A. Kral and Kroumchtein, {Z. V.} and R. Kuhn and F. Kunne and K. Kurek and L. Lauser and {Le Goff}, {J. M.} and Lednev, {A. A.} and A. Lehmann and S. Levorato and J. Lichtenstadt and T. Liska and A. Maggiora and M. Maggiora and A. Magnon and Mallot, {G. K.} and A. Mann and C. Marchand and A. Martin and J. Marzec and F. Massmann and T. Matsuda and W. Meyer and T. Michigami and Mikhailov, {Yu V.} and Moinester, {M. A.} and A. Mutter and A. Nagaytsev and T. Nagel and J. Nassalski and T. Negrini and F. Nerling and S. Neubert and D. Neyret and Nikolaenko, {V. I.} and Nunes, {A. S.} and Olshevsky, {A. G.} and M. Ostrick and A. Padee and R. Panknin and D. Panzieri and B. Parsamyan and S. Paul and B. Pawlukiewicz-Kaminska and E. Perevalova and G. Pesaro and Peshekhonov, {D. V.} and G. Piragino and S. Platchkov and J. Pochodzalla and J. Polak and Polyakov, {V. A.} and G. Pontecorvo and J. Pretz and C. Quintans and Rajotte, {J. F.} and S. Ramos and V. Rapatsky and G. Reicherz and A. Richter and F. Robinet and E. Rocco and E. Rondio and Ryabchikov, {D. I.} and Samoylenko, {V. D.} and A. Sandacz and H. Santos and Sapozhnikov, {M. G.} and S. Sarkar and Savin, {I. A.} and G. Sbrizzai and P. Schiavon and C. Schill and T. Schl{\"u}ter and L. Schmitt and S. Schopferer and W. Schr{\"o}der and Shevchenko, {O. Yu} and Siebert, {H. W.} and L. Silva and L. Sinha and Sissakian, {A. N.} and M. Slunecka and Smirnov, {G. I.} and S. Sosio and F. Sozzi and A. Srnka and M. Stolarski and M. Sulc and R. Sulej and S. Takekawa and S. Tessaro and F. Tessarotto and A. Teufel and Tkatchev, {L. G.} and S. Uhl and I. Uman and M. Virius and Vlassov, {N. V.} and A. Vossen and Q. Weitzel and R. Windmolders and W. Wi{\'s}licki and H. Wollny and K. Zaremba and M. Zavertyaev and E. Zemlyanichkina and M. Ziembicki and J. Zhao and N. Zhuravlev and A. Zvyagin",

year = "2010",

month = nov,

doi = "10.1140/epjc/s10052-010-1461-9",

language = "אנגלית",

volume = "70",

pages = "39--49",

journal = "European Physical Journal C",

issn = "1434-6044",

publisher = "Springer Nature",

number = "1",

}

Alekseev, MG, Alexakhin, VY, Alexandrov, Y, Alexeev, GD, Amoroso, A, Austregesilo, A, Badełek, B, Balestra, F, Barth, J, Baum, G, Bedfer, Y, Bernhard, J, Bertini, R, Bettinelli, M, Birsa, R, Bisplinghoff, J, Bordalo, P, Bradamante, F, Bravar, A, Bressan, A, Brona, G, Burtin, E, Bussa, MP, Chaberny, D, Chiosso, M, Chung, SU, Cicuttin, A, Colantoni, M, Crespo, ML, Dalla Torre, S, Das, S, Dasgupta, SS, Denisov, OY, Dhara, L, Diaz, V, Donskov, SV, Doshita, N, Duic, V, Dünnweber, W, Efremov, A, El Alaoui, A, Eversheim, PD, Eyrich, W, Faessler, M, Ferrero, A, Filin, A, Finger, M, Finger, M, Fischer, H, Franco, C, Friedrich, JM, Garfagnini, R, Gautheron, F, Gavrichtchouk, OP, Gazda, R, Gerassimov, S, Geyer, R, Giorgi, M, Gnesi, I, Gobbo, B, Goertz, S, Grabmüller, S, Grasso, A, Grube, B, Gushterski, R, Guskov, A, Haas, F, von Harrach, D, Hasegawa, T, Heinsius, FH, Herrmann, F, Heß, C, Hinterberger, F, Horikawa, N, Höppner, C, d'Hose, N, Ilgner, C, Ishimoto, S, Ivanov, O, Ivanshin, Y, Iwata, T, Jahn, R, Jasinski, P, Jegou, G, Joosten, R, Kabuß, E, Kang, D, Ketzer, B, Khaustov, GV, Khokhlov, YA, Kisselev, Y, Klein, F, Klimaszewski, K, Koblitz, S, Koivuniemi, JH, Kolosov, VN, Kondo, K, Königsmann, K, Konopka, R, Konorov, I, Konstantinov, VF, Korzenev, A, Kotzinian, AM, Kouznetsov, O, Kowalik, K, Krämer, M, Kral, A, Kroumchtein, ZV, Kuhn, R, Kunne, F, Kurek, K, Lauser, L, Le Goff, JM, Lednev, AA, Lehmann, A, Levorato, S, Lichtenstadt, J, Liska, T, Maggiora, A, Maggiora, M, Magnon, A, Mallot, GK, Mann, A, Marchand, C, Martin, A, Marzec, J, Massmann, F, Matsuda, T, Meyer, W, Michigami, T, Mikhailov, YV, Moinester, MA, Mutter, A, Nagaytsev, A, Nagel, T, Nassalski, J, Negrini, T, Nerling, F, Neubert, S, Neyret, D, Nikolaenko, VI, Nunes, AS, Olshevsky, AG, Ostrick, M, Padee, A, Panknin, R, Panzieri, D, Parsamyan, B, Paul, S, Pawlukiewicz-Kaminska, B, Perevalova, E, Pesaro, G, Peshekhonov, DV, Piragino, G, Platchkov, S, Pochodzalla, J, Polak, J, Polyakov, VA, Pontecorvo, G, Pretz, J, Quintans, C, Rajotte, JF, Ramos, S, Rapatsky, V, Reicherz, G, Richter, A, Robinet, F, Rocco, E, Rondio, E, Ryabchikov, DI, Samoylenko, VD, Sandacz, A, Santos, H, Sapozhnikov, MG, Sarkar, S, Savin, IA, Sbrizzai, G, Schiavon, P, Schill, C, Schlüter, T, Schmitt, L, Schopferer, S, Schröder, W, Shevchenko, OY, Siebert, HW, Silva, L, Sinha, L, Sissakian, AN, Slunecka, M, Smirnov, GI, Sosio, S, Sozzi, F, Srnka, A, Stolarski, M, Sulc, M, Sulej, R, Takekawa, S, Tessaro, S, Tessarotto, F, Teufel, A, Tkatchev, LG, Uhl, S, Uman, I, Virius, M, Vlassov, NV, Vossen, A, Weitzel, Q, Windmolders, R, Wiślicki, W, Wollny, H, Zaremba, K, Zavertyaev, M, Zemlyanichkina, E, Ziembicki, M, Zhao, J, Zhuravlev, N & Zvyagin, A 2010, 'Azimuthal asymmetries of charged hadrons produced by high-energy muons scattered off longitudinally polarised deuterons', European Physical Journal C, vol. 70, no. 1, pp. 39-49. https://doi.org/10.1140/epjc/s10052-010-1461-9

TY - JOUR

T1 - Azimuthal asymmetries of charged hadrons produced by high-energy muons scattered off longitudinally polarised deuterons

AU - Alekseev, M. G.

AU - Alexakhin, V. Yu

AU - Alexandrov, Yu

AU - Alexeev, G. D.

AU - Amoroso, A.

AU - Austregesilo, A.

AU - Badełek, B.

AU - Balestra, F.

AU - Barth, J.

AU - Baum, G.

AU - Bedfer, Y.

AU - Bernhard, J.

AU - Bertini, R.

AU - Bettinelli, M.

AU - Birsa, R.

AU - Bisplinghoff, J.

AU - Bordalo, P.

AU - Bradamante, F.

AU - Bravar, A.

AU - Bressan, A.

AU - Brona, G.

AU - Burtin, E.

AU - Bussa, M. P.

AU - Chaberny, D.

AU - Chiosso, M.

AU - Chung, S. U.

AU - Cicuttin, A.

AU - Colantoni, M.

AU - Crespo, M. L.

AU - Dalla Torre, S.

AU - Das, S.

AU - Dasgupta, S. S.

AU - Denisov, O. Yu

AU - Dhara, L.

AU - Diaz, V.

AU - Donskov, S. V.

AU - Doshita, N.

AU - Duic, V.

AU - Dünnweber, W.

AU - Efremov, A.

AU - El Alaoui, A.

AU - Eversheim, P. D.

AU - Eyrich, W.

AU - Faessler, M.

AU - Ferrero, A.

AU - Filin, A.

AU - Finger, M.

AU - Fischer, H.

AU - Franco, C.

AU - Friedrich, J. M.

AU - Garfagnini, R.

AU - Gautheron, F.

AU - Gavrichtchouk, O. P.

AU - Gazda, R.

AU - Gerassimov, S.

AU - Geyer, R.

AU - Giorgi, M.

AU - Gnesi, I.

AU - Gobbo, B.

AU - Goertz, S.

AU - Grabmüller, S.

AU - Grasso, A.

AU - Grube, B.

AU - Gushterski, R.

AU - Guskov, A.

AU - Haas, F.

AU - von Harrach, D.

AU - Hasegawa, T.

AU - Heinsius, F. H.

AU - Herrmann, F.

AU - Heß, C.

AU - Hinterberger, F.

AU - Horikawa, N.

AU - Höppner, Ch

AU - d'Hose, N.

AU - Ilgner, C.

AU - Ishimoto, S.

AU - Ivanov, O.

AU - Ivanshin, Yu

AU - Iwata, T.

AU - Jahn, R.

AU - Jasinski, P.

AU - Jegou, G.

AU - Joosten, R.

AU - Kabuß, E.

AU - Kang, D.

AU - Ketzer, B.

AU - Khaustov, G. V.

AU - Khokhlov, Yu A.

AU - Kisselev, Yu

AU - Klein, F.

AU - Klimaszewski, K.

AU - Koblitz, S.

AU - Koivuniemi, J. H.

AU - Kolosov, V. N.

AU - Kondo, K.

AU - Königsmann, K.

AU - Konopka, R.

AU - Konorov, I.

AU - Konstantinov, V. F.

AU - Korzenev, A.

AU - Kotzinian, A. M.

AU - Kouznetsov, O.

AU - Kowalik, K.

AU - Krämer, M.

AU - Kral, A.

AU - Kroumchtein, Z. V.

AU - Kuhn, R.

AU - Kunne, F.

AU - Kurek, K.

AU - Lauser, L.

AU - Le Goff, J. M.

AU - Lednev, A. A.

AU - Lehmann, A.

AU - Levorato, S.

AU - Lichtenstadt, J.

AU - Liska, T.

AU - Maggiora, A.

AU - Maggiora, M.

AU - Magnon, A.

AU - Mallot, G. K.

AU - Mann, A.

AU - Marchand, C.

AU - Martin, A.

AU - Marzec, J.

AU - Massmann, F.

AU - Matsuda, T.

AU - Meyer, W.

AU - Michigami, T.

AU - Mikhailov, Yu V.

AU - Moinester, M. A.

AU - Mutter, A.

AU - Nagaytsev, A.

AU - Nagel, T.

AU - Nassalski, J.

AU - Negrini, T.

AU - Nerling, F.

AU - Neubert, S.

AU - Neyret, D.

AU - Nikolaenko, V. I.

AU - Nunes, A. S.

AU - Olshevsky, A. G.

AU - Ostrick, M.

AU - Padee, A.

AU - Panknin, R.

AU - Panzieri, D.

AU - Parsamyan, B.

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AU - Zvyagin, A.

PY - 2010/11

Y1 - 2010/11

N2 - Azimuthal asymmetries in semi-inclusive production of positive (h+) and negative hadrons (h-) have been measured by scattering 160 GeV muons off longitudinally polarised deuterons at CERN. The asymmetries were decomposed in several terms according to their expected modulation in the azimuthal angle φ of the outgoing hadron. Each term receives contributions from one or several spin and transverse-momentum-dependent parton distribution and fragmentation functions. The amplitudes of all φ-modulation terms of the hadron asymmetries integrated over the kinematic variables are found to be consistent with zero within statistical errors, while the constant terms are nonzero and equal for h+ and h- within the statistical errors. The dependencies of the φ-modulated terms versus the Bjorken momentum fraction x, the hadron fractional momentum z, and the hadron transverse momentum PTh were studied. The x dependence of the constant terms for both positive and negative hadrons is in agreement with the longitudinal double-spin hadron asymmetries, measured in semi-inclusive deep-inelastic scattering. The x dependence of the sin φ-modulation term is less pronounced than that in the corresponding HERMES data. All other dependencies of the φ-modulation amplitudes are consistent with zero within the statistical errors.

AB - Azimuthal asymmetries in semi-inclusive production of positive (h+) and negative hadrons (h-) have been measured by scattering 160 GeV muons off longitudinally polarised deuterons at CERN. The asymmetries were decomposed in several terms according to their expected modulation in the azimuthal angle φ of the outgoing hadron. Each term receives contributions from one or several spin and transverse-momentum-dependent parton distribution and fragmentation functions. The amplitudes of all φ-modulation terms of the hadron asymmetries integrated over the kinematic variables are found to be consistent with zero within statistical errors, while the constant terms are nonzero and equal for h+ and h- within the statistical errors. The dependencies of the φ-modulated terms versus the Bjorken momentum fraction x, the hadron fractional momentum z, and the hadron transverse momentum PTh were studied. The x dependence of the constant terms for both positive and negative hadrons is in agreement with the longitudinal double-spin hadron asymmetries, measured in semi-inclusive deep-inelastic scattering. The x dependence of the sin φ-modulation term is less pronounced than that in the corresponding HERMES data. All other dependencies of the φ-modulation amplitudes are consistent with zero within the statistical errors.

UR - http://www.scopus.com/inward/record.url?scp=78449306932&partnerID=8YFLogxK

U2 - 10.1140/epjc/s10052-010-1461-9

DO - 10.1140/epjc/s10052-010-1461-9

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AN - SCOPUS:78449306932

SN - 1434-6044

VL - 70

SP - 39

EP - 49

JO - European Physical Journal C

JF - European Physical Journal C

IS - 1

ER -

Azimuthal asymmetries of charged hadrons produced by high-energy muons scattered off longitudinally polarised deuterons

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