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Evidence for a single-spin azimuthal asymmetry in semi-inclusive pion electroproduction

Publication ,  Journal Article
Airapetian, A; Akopov, N; Amarian, M; Aschenauer, EC; Avakian, H; Avakian, R; Avetissian, A; Avetissian, E; Bains, B; Baumgarten, C; Belz, JE ...
Published in: Physical Review Letters
January 1, 2000

Single-spin asymmetries for semi-inclusive pion production in deep-inelastic scattering have been measured for the first time. A significant target-spin asymmetry of the distribution in the azimuthal angle φ of the pion relative to the lepton scattering plane was formed for π+ electroproduction on a longitudinally polarized hydrogen target. The corresponding analyzing power in the sinφ moment of the cross section is 0.022±0.005±0.003. This result can be interpreted as the effect of terms in the cross section involving chiral-odd spin distribution functions in combination with a chiral-odd fragmentation function that is sensitive to the transverse polarization of the fragmenting quark. © 2000 The American Physical Society.

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Published In

Physical Review Letters

DOI

EISSN

1079-7114

ISSN

0031-9007

Publication Date

January 1, 2000

Volume

84

Issue

18

Start / End Page

4047 / 4051

Related Subject Headings

  • General Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences
 

Citation

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Airapetian, A., Akopov, N., Amarian, M., Aschenauer, E. C., Avakian, H., Avakian, R., … Kramer, L. H. (2000). Evidence for a single-spin azimuthal asymmetry in semi-inclusive pion electroproduction. Physical Review Letters, 84(18), 4047–4051. https://doi.org/10.1103/PhysRevLett.84.4047
Airapetian, A., N. Akopov, M. Amarian, E. C. Aschenauer, H. Avakian, R. Avakian, A. Avetissian, et al. “Evidence for a single-spin azimuthal asymmetry in semi-inclusive pion electroproduction.” Physical Review Letters 84, no. 18 (January 1, 2000): 4047–51. https://doi.org/10.1103/PhysRevLett.84.4047.
Airapetian A, Akopov N, Amarian M, Aschenauer EC, Avakian H, Avakian R, et al. Evidence for a single-spin azimuthal asymmetry in semi-inclusive pion electroproduction. Physical Review Letters. 2000 Jan 1;84(18):4047–51.
Airapetian, A., et al. “Evidence for a single-spin azimuthal asymmetry in semi-inclusive pion electroproduction.” Physical Review Letters, vol. 84, no. 18, Jan. 2000, pp. 4047–51. Scopus, doi:10.1103/PhysRevLett.84.4047.
Airapetian A, Akopov N, Amarian M, Aschenauer EC, Avakian H, Avakian R, Avetissian A, Avetissian E, Bains B, Baumgarten C, Beckmann M, Belostotski S, Belz JE, Benisch T, Bernreuther S, Bianchi N, Blouw J, Böttcher H, Borissov A, Bouwhuis M, Brack J, Brauksiepe S, Braun B, Bray B, Brons S, Brückner W, Brüll A, Bruins EEW, Bulten HJ, Capitani GP, Carter P, Chumney P, Cisbani E, Court GR, Dalpiaz PF, De Sanctis E, De Schepper D, Devitsin E, de Witt Huberts PKA, Di Nezza P, Düren M, Dvoredsky A, Elbakian G, Ely J, Fantoni A, Fechtchenko A, Ferstl M, Fiedler K, Filippone BW, Fischer H, Fox B, Franz J, Frullani S, Funk MA, Gärber Y, Gao H, Garibaldi F, Gavrilov G, Geiger P, Gharibyan V, Golendukhin A, Graw G, Grebeniouk O, Green PW, Greeniaus LG, Grosshauser C, Guidal M, Gute A, Gyurjyan V, Haas JP, Haeberli W, Hansen JO, Hartig M, Hasch D, Häusser O, Heinsius FH, Henderson R, Henoch M, Hertenberger R, Holler Y, Holt RJ, Hoprich W, Ihssen H, Iodice M, Izotov A, Jackson HE, Jgoun A, Kaiser R, Kinney E, Kisselev A, Kitching P, Kobayashi H, Koch N, Königsmann K, Kolstein M, Kolster H, Korotkov V, Korsch W, Kozlov V, Kramer LH. Evidence for a single-spin azimuthal asymmetry in semi-inclusive pion electroproduction. Physical Review Letters. 2000 Jan 1;84(18):4047–4051.

Published In

Physical Review Letters

DOI

EISSN

1079-7114

ISSN

0031-9007

Publication Date

January 1, 2000

Volume

84

Issue

18

Start / End Page

4047 / 4051

Related Subject Headings

  • General Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences