Single-spin azimuthal asymmetries in electroproduction of neutral pions in semi-inclusive deep-inelastic scattering

A. Airapetian; N. Akopov; Z. Akopov; M. Amarian; E. C. Aschenauer; H. Avakian; R. Avakian; A. Avetissian; E. Avetissian; P. Bailey; B. Bains; V. Baturin; C. Baumgarten; M. Beckmann; S. Belostotski; S. Bernreuther; N. Bianchi; H. Böttcher; A. Borissov; O. Bouhali; M. Bouwhuis; J. Brack; S. Brauksiepe; W. Brückner; A. Brüll; I. Brunn; H. J. Bulten; G. P. Capitani; P. Chumney; E. Cisbani; G. Ciullo; G. R. Court; P. F. Dalpiaz; R. De Leo; L. De Nardo; E. De Sanctis; D. De Schepper; E. Devitsin; P. K.A. De Witt Huberts; P. Di Nezza; V. Djordjadze; M. Düren; M. Ehrenfried; G. Elbakian; F. Ellinghaus; J. Ely; A. Fantoni; A. Fechtchenko; L. Felawka; B. W. Filippone; H. Fischer; B. Fox; J. Franz; S. Frullani; Y. Gärber; F. Garibaldi; E. Garutti; G. Gavrilov; V. Gharibyan; A. Golendukhin; G. Graw; O. Grebeniouk; P. W. Green; L. G. Greeniaus; A. Gute; W. Haeberli; K. Hafidi; M. Hartig; D. Hasch; D. Heesbeen; F. H. Heinsius; M. Henoch; R. Hertenberger; W. H.A. Hesselink; G. Hofman; Y. Holler; R. J. Holt; B. Hommez; G. Iarygin; A. Izotov; H. E. Jackson; A. Jgoun; P. Jung; R. Kaiser; J. Kanesaka; E. Kinney; A. Kisselev; P. Kitching; H. Kobayashi; N. Koch; K. Königsmann; H. Kolster; V. Korotkov; E. Kotik; V. Kozlov; B. Krauss; V. G. Krivokhijine; G. Kyle; L. Lagamba

doi:10.1103/PhysRevD.64.097101

Single-spin azimuthal asymmetries in electroproduction of neutral pions in semi-inclusive deep-inelastic scattering

A. Airapetian^*
, N. Akopov
, Z. Akopov
, M. Amarian
, E. C. Aschenauer
, H. Avakian
, R. Avakian
, A. Avetissian
, E. Avetissian
, P. Bailey
, B. Bains
, V. Baturin
, C. Baumgarten
, M. Beckmann
, S. Belostotski
, S. Bernreuther
, N. Bianchi
, H. Böttcher
, A. Borissov
, O. Bouhali

M. Bouwhuis, J. Brack, S. Brauksiepe, W. Brückner, A. Brüll, I. Brunn, H. J. Bulten, G. P. Capitani, P. Chumney, E. Cisbani, G. Ciullo, G. R. Court, P. F. Dalpiaz, R. De Leo, L. De Nardo, E. De Sanctis, D. De Schepper, E. Devitsin, P. K.A. De Witt Huberts, P. Di Nezza, V. Djordjadze, M. Düren, M. Ehrenfried, G. Elbakian, F. Ellinghaus, J. Ely, A. Fantoni, A. Fechtchenko, L. Felawka, B. W. Filippone, H. Fischer, B. Fox, J. Franz, S. Frullani, Y. Gärber, F. Garibaldi, E. Garutti, G. Gavrilov, V. Gharibyan, A. Golendukhin, G. Graw, O. Grebeniouk, P. W. Green, L. G. Greeniaus, A. Gute, W. Haeberli, K. Hafidi, M. Hartig, D. Hasch, D. Heesbeen, F. H. Heinsius, M. Henoch, R. Hertenberger, W. H.A. Hesselink, G. Hofman, Y. Holler, R. J. Holt, B. Hommez, G. Iarygin, A. Izotov, H. E. Jackson, A. Jgoun, P. Jung, R. Kaiser, J. Kanesaka, E. Kinney, A. Kisselev, P. Kitching, H. Kobayashi, N. Koch, K. Königsmann, H. Kolster, V. Korotkov, E. Kotik, V. Kozlov, B. Krauss, V. G. Krivokhijine, G. Kyle, L. Lagamba

^*Corresponding author for this work

A. Alikhanian Yerevan Institute of Physics

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

224 Citations (Scopus)

Abstract

A single-spin asymmetry in the azimuthal distribution of neutral pions relative to the lepton scattering plane has been measured for the first time in deep-inelastic scattering of positrons off longitudinally polarized protons. The analyzing power in the sin φ moment of the cross section is 0.019±0.007(stat)±0.003(syst). This result is compared to single-spin asymmetries for charged pion production measured in the same kinematic range. The π⁰ asymmetry is of the same size as the π⁺ asymmetry and shows a similar dependence on the relevant kinematic variables. The asymmetry is described by a phenomenological calculation based on a fragmentation function that represents sensitivity to the transverse polarization of the struck quark.

Original language	English
Article number	097101
Pages (from-to)	971011-971014
Number of pages	4
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	64
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevD.64.097101
Publication status	Published - 1 Nov 2001
Externally published	Yes

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10.1103/PhysRevD.64.097101

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Airapetian, A., Akopov, N., Akopov, Z., Amarian, M., Aschenauer, E. C., Avakian, H., Avakian, R., Avetissian, A., Avetissian, E., Bailey, P., Bains, B., Baturin, V., Baumgarten, C., Beckmann, M., Belostotski, S., Bernreuther, S., Bianchi, N., Böttcher, H., Borissov, A., ... Lagamba, L. (2001). Single-spin azimuthal asymmetries in electroproduction of neutral pions in semi-inclusive deep-inelastic scattering. Physical Review D - Particles, Fields, Gravitation and Cosmology, 64(9), 971011-971014. Article 097101. https://doi.org/10.1103/PhysRevD.64.097101

@article{0e777758c8b14400af366cad4a80ae0f,

title = "Single-spin azimuthal asymmetries in electroproduction of neutral pions in semi-inclusive deep-inelastic scattering",

abstract = "A single-spin asymmetry in the azimuthal distribution of neutral pions relative to the lepton scattering plane has been measured for the first time in deep-inelastic scattering of positrons off longitudinally polarized protons. The analyzing power in the sin φ moment of the cross section is 0.019±0.007(stat)±0.003(syst). This result is compared to single-spin asymmetries for charged pion production measured in the same kinematic range. The π0 asymmetry is of the same size as the π+ asymmetry and shows a similar dependence on the relevant kinematic variables. The asymmetry is described by a phenomenological calculation based on a fragmentation function that represents sensitivity to the transverse polarization of the struck quark.",

author = "A. Airapetian and N. Akopov and Z. Akopov and M. Amarian and Aschenauer, \{E. C.\} and H. Avakian and R. Avakian and A. Avetissian and E. Avetissian and P. Bailey and B. Bains and V. Baturin and C. Baumgarten and M. Beckmann and S. Belostotski and S. Bernreuther and N. Bianchi and H. B{\"o}ttcher and A. Borissov and O. Bouhali and M. Bouwhuis and J. Brack and S. Brauksiepe and W. Br{\"u}ckner and A. Br{\"u}ll and I. Brunn and Bulten, \{H. J.\} and Capitani, \{G. P.\} and P. Chumney and E. Cisbani and G. Ciullo and Court, \{G. R.\} and Dalpiaz, \{P. F.\} and \{De Leo\}, R. and \{De Nardo\}, L. and \{De Sanctis\}, E. and \{De Schepper\}, D. and E. Devitsin and \{De Witt Huberts\}, \{P. K.A.\} and \{Di Nezza\}, P. and V. Djordjadze and M. D{\"u}ren and M. Ehrenfried and G. Elbakian and F. Ellinghaus and J. Ely and A. Fantoni and A. Fechtchenko and L. Felawka and Filippone, \{B. W.\} and H. Fischer and B. Fox and J. Franz and S. Frullani and Y. G{\"a}rber and F. Garibaldi and E. Garutti and G. Gavrilov and V. Gharibyan and A. Golendukhin and G. Graw and O. Grebeniouk and Green, \{P. W.\} and Greeniaus, \{L. G.\} and A. Gute and W. Haeberli and K. Hafidi and M. Hartig and D. Hasch and D. Heesbeen and Heinsius, \{F. H.\} and M. Henoch and R. Hertenberger and Hesselink, \{W. H.A.\} and G. Hofman and Y. Holler and Holt, \{R. J.\} and B. Hommez and G. Iarygin and A. Izotov and Jackson, \{H. E.\} and A. Jgoun and P. Jung and R. Kaiser and J. Kanesaka and E. Kinney and A. Kisselev and P. Kitching and H. Kobayashi and N. Koch and K. K{\"o}nigsmann and H. Kolster and V. Korotkov and E. Kotik and V. Kozlov and B. Krauss and Krivokhijine, \{V. G.\} and G. Kyle and L. Lagamba",

year = "2001",

month = nov,

day = "1",

doi = "10.1103/PhysRevD.64.097101",

language = "English",

volume = "64",

pages = "971011--971014",

journal = "Physical Review D - Particles, Fields, Gravitation and Cosmology",

issn = "0556-2821",

number = "9",

}

Airapetian, A, Akopov, N, Akopov, Z, Amarian, M, Aschenauer, EC, Avakian, H, Avakian, R, Avetissian, A, Avetissian, E, Bailey, P, Bains, B, Baturin, V, Baumgarten, C, Beckmann, M, Belostotski, S, Bernreuther, S, Bianchi, N, Böttcher, H, Borissov, A, Bouhali, O, Bouwhuis, M, Brack, J, Brauksiepe, S, Brückner, W, Brüll, A, Brunn, I, Bulten, HJ, Capitani, GP, Chumney, P, Cisbani, E, Ciullo, G, Court, GR, Dalpiaz, PF, De Leo, R, De Nardo, L, De Sanctis, E, De Schepper, D, Devitsin, E, De Witt Huberts, PKA, Di Nezza, P, Djordjadze, V, Düren, M, Ehrenfried, M, Elbakian, G, Ellinghaus, F, Ely, J, Fantoni, A, Fechtchenko, A, Felawka, L, Filippone, BW, Fischer, H, Fox, B, Franz, J, Frullani, S, Gärber, Y, Garibaldi, F, Garutti, E, Gavrilov, G, Gharibyan, V, Golendukhin, A, Graw, G, Grebeniouk, O, Green, PW, Greeniaus, LG, Gute, A, Haeberli, W, Hafidi, K, Hartig, M, Hasch, D, Heesbeen, D, Heinsius, FH, Henoch, M, Hertenberger, R, Hesselink, WHA, Hofman, G, Holler, Y, Holt, RJ, Hommez, B, Iarygin, G, Izotov, A, Jackson, HE, Jgoun, A, Jung, P, Kaiser, R, Kanesaka, J, Kinney, E, Kisselev, A, Kitching, P, Kobayashi, H, Koch, N, Königsmann, K, Kolster, H, Korotkov, V, Kotik, E, Kozlov, V, Krauss, B, Krivokhijine, VG, Kyle, G & Lagamba, L 2001, 'Single-spin azimuthal asymmetries in electroproduction of neutral pions in semi-inclusive deep-inelastic scattering', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 64, no. 9, 097101, pp. 971011-971014. https://doi.org/10.1103/PhysRevD.64.097101

TY - JOUR

T1 - Single-spin azimuthal asymmetries in electroproduction of neutral pions in semi-inclusive deep-inelastic scattering

AU - Airapetian, A.

AU - Akopov, N.

AU - Akopov, Z.

AU - Amarian, M.

AU - Aschenauer, E. C.

AU - Avakian, H.

AU - Avakian, R.

AU - Avetissian, A.

AU - Avetissian, E.

AU - Bailey, P.

AU - Bains, B.

AU - Baturin, V.

AU - Baumgarten, C.

AU - Beckmann, M.

AU - Belostotski, S.

AU - Bernreuther, S.

AU - Bianchi, N.

AU - Böttcher, H.

AU - Borissov, A.

AU - Bouhali, O.

AU - Bouwhuis, M.

AU - Brack, J.

AU - Brauksiepe, S.

AU - Brückner, W.

AU - Brüll, A.

AU - Brunn, I.

AU - Bulten, H. J.

AU - Capitani, G. P.

AU - Chumney, P.

AU - Cisbani, E.

AU - Ciullo, G.

AU - Court, G. R.

AU - Dalpiaz, P. F.

AU - De Leo, R.

AU - De Nardo, L.

AU - De Sanctis, E.

AU - De Schepper, D.

AU - Devitsin, E.

AU - De Witt Huberts, P. K.A.

AU - Di Nezza, P.

AU - Djordjadze, V.

AU - Düren, M.

AU - Ehrenfried, M.

AU - Elbakian, G.

AU - Ellinghaus, F.

AU - Ely, J.

AU - Fantoni, A.

AU - Fechtchenko, A.

AU - Felawka, L.

AU - Filippone, B. W.

AU - Fischer, H.

AU - Fox, B.

AU - Franz, J.

AU - Frullani, S.

AU - Gärber, Y.

AU - Garibaldi, F.

AU - Garutti, E.

AU - Gavrilov, G.

AU - Gharibyan, V.

AU - Golendukhin, A.

AU - Graw, G.

AU - Grebeniouk, O.

AU - Green, P. W.

AU - Greeniaus, L. G.

AU - Gute, A.

AU - Haeberli, W.

AU - Hafidi, K.

AU - Hartig, M.

AU - Hasch, D.

AU - Heesbeen, D.

AU - Heinsius, F. H.

AU - Henoch, M.

AU - Hertenberger, R.

AU - Hesselink, W. H.A.

AU - Hofman, G.

AU - Holler, Y.

AU - Holt, R. J.

AU - Hommez, B.

AU - Iarygin, G.

AU - Izotov, A.

AU - Jackson, H. E.

AU - Jgoun, A.

AU - Jung, P.

AU - Kaiser, R.

AU - Kanesaka, J.

AU - Kinney, E.

AU - Kisselev, A.

AU - Kitching, P.

AU - Kobayashi, H.

AU - Koch, N.

AU - Königsmann, K.

AU - Kolster, H.

AU - Korotkov, V.

AU - Kotik, E.

AU - Kozlov, V.

AU - Krauss, B.

AU - Krivokhijine, V. G.

AU - Kyle, G.

AU - Lagamba, L.

PY - 2001/11/1

Y1 - 2001/11/1

N2 - A single-spin asymmetry in the azimuthal distribution of neutral pions relative to the lepton scattering plane has been measured for the first time in deep-inelastic scattering of positrons off longitudinally polarized protons. The analyzing power in the sin φ moment of the cross section is 0.019±0.007(stat)±0.003(syst). This result is compared to single-spin asymmetries for charged pion production measured in the same kinematic range. The π0 asymmetry is of the same size as the π+ asymmetry and shows a similar dependence on the relevant kinematic variables. The asymmetry is described by a phenomenological calculation based on a fragmentation function that represents sensitivity to the transverse polarization of the struck quark.

AB - A single-spin asymmetry in the azimuthal distribution of neutral pions relative to the lepton scattering plane has been measured for the first time in deep-inelastic scattering of positrons off longitudinally polarized protons. The analyzing power in the sin φ moment of the cross section is 0.019±0.007(stat)±0.003(syst). This result is compared to single-spin asymmetries for charged pion production measured in the same kinematic range. The π0 asymmetry is of the same size as the π+ asymmetry and shows a similar dependence on the relevant kinematic variables. The asymmetry is described by a phenomenological calculation based on a fragmentation function that represents sensitivity to the transverse polarization of the struck quark.

UR - https://www.scopus.com/pages/publications/17944397217

U2 - 10.1103/PhysRevD.64.097101

DO - 10.1103/PhysRevD.64.097101

M3 - Article

AN - SCOPUS:17944397217

SN - 0556-2821

VL - 64

SP - 971011

EP - 971014

JO - Physical Review D - Particles, Fields, Gravitation and Cosmology

JF - Physical Review D - Particles, Fields, Gravitation and Cosmology

IS - 9

M1 - 097101

ER -

Single-spin azimuthal asymmetries in electroproduction of neutral pions in semi-inclusive deep-inelastic scattering

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