Precise measurements of beam spin asymmetries in semi-inclusive pi(0) production

M. Aghasyan; H. Avakian; P. Rossi; E. De Sanctis; D. Hasch; M. Mirazita; D. Adikaram; M. J. Amaryan; M. Anghinolfi; H. Baghdasaryan; J. Ball; M. Battaglieri; V. Batourine; I. Bedlinskiy; R. P. Bennett; A. S. Biselli; D. Branford; W. J. Briscoe; S. Bueltmann; V. D. Burkert; D. S. Carman; S. Chandavar; P. L. Cole; P. Collins; M. Contalbrigo; V. Crede; A. D'Angelo; A. Daniel; N. Dashyan; R. De Vita; A. Deur; B. Dey; R. Dickson; C. Djalali; G. E. Dodge; D. Doughty; R. Dupre; H. Egiyan; A. El Alaoui; L. Elouadrhiri; P. Eugenio; G. Fedotov; S. Fegan; A. Fradi; M. Y. Gabrielyan; M. Garcon; N. Gevorgyan; G. P. Gilfoyle; K. L. Giovanetti; F. X. Girod; J. T. Goetz; W. Gohn; E. Golovatch; R. W. Gothe; L. Graham; K. A. Griffioen; B. Guegan; M. Guidal; N. Guler; L. Guo; K. Hafidi; C. Hanretty; K. Hicks; M. Holtrop; C. E. Hyde; Y. Ilieva; D. G. Ireland; E. L. Isupov; S. S. Jawalkar; D. Jenkins; H. S. Jo; K. Joo; D. Keller; M. Khandaker; P. Khetarpal; A. Kim; W. Kim; A. Klein; F. J. Klein; V. Kubarovsky; S. E. Kuhn; S. V. Kuleshov; V. Kuznetsov; N. D. Kvaltine; K. Livingston; H. Y. Lu; I. J. D. MacGregor; N. Markov; M. Mayer; J. McAndrew; B. McKinnon; C. A. Meyer; A. M. Micherdzinska; V. Mokeev; B. Moreno; H. Moutarde; E. Munevar; P. Nadel-Turonski; A. Ni; S. Niccolai; G. Niculescu; I. Niculescu; M. Osipenko; A. I. Ostrovidov; M. Paolone; L. Pappalardo; R. Paremuzyan; K. Park; S. Park; E. Pasyuk; S. Anefalos Pereira; E. Phelps; S. Pisano; O. Pogorelko; S. Pozdniakov; J. W. Price; S. Procureur; Y. Prok; D. Protopopescu; B. A. Raue; G. Ricco; D. Rimal; M. Ripani; G. Rosner; F. Sabatie; M. S. Saini; C. Salgado; D. Schott; R. A. Schumacher; E. Seder; H. Seraydaryan; Y. G. Sharabian; G. D. Smith; D. I. Sober; S. S. Stepanyan; S. Stepanyan; P. Stoler; I. Strakovsky; S. Strauch; M. Taiuti; W. Tang; C. E. Taylor; S. Tkachenko; M. Ungaro; H. Voskanyan; E. Voutier; D. Watts; L. B. Weinstein; D. P. Weygand; M. H. Wood; L. Zana; J. Zhang; B. Zhao; Z. W. Zhao

doi:10.1016/j.physletb.2011.09.044

Precise measurements of beam spin asymmetries in semi-inclusive pi(0) production

M. Aghasyan, H. Avakian, P. Rossi, E. De Sanctis, D. Hasch, M. Mirazita, D. Adikaram, M. J. Amaryan, M. Anghinolfi, H. Baghdasaryan, J. Ball, M. Battaglieri, V. Batourine, I. Bedlinskiy, R. P. Bennett, A. S. Biselli, D. Branford, W. J. Briscoe, S. Bueltmann, V. D. BurkertD. S. Carman, S. Chandavar, P. L. Cole, P. Collins, M. Contalbrigo, V. Crede, A. D'Angelo, A. Daniel, N. Dashyan, R. De Vita, A. Deur, B. Dey, R. Dickson, C. Djalali, G. E. Dodge, D. Doughty, R. Dupre, H. Egiyan, A. El Alaoui, L. Elouadrhiri, P. Eugenio, G. Fedotov, S. Fegan, A. Fradi, M. Y. Gabrielyan, M. Garcon, N. Gevorgyan, G. P. Gilfoyle, K. L. Giovanetti, F. X. Girod, J. T. Goetz, W. Gohn, E. Golovatch, R. W. Gothe, L. Graham, K. A. Griffioen, B. Guegan, M. Guidal, N. Guler, L. Guo, K. Hafidi, C. Hanretty, K. Hicks, M. Holtrop, C. E. Hyde, Y. Ilieva, D. G. Ireland, E. L. Isupov, S. S. Jawalkar, D. Jenkins, H. S. Jo, K. Joo, D. Keller, M. Khandaker, P. Khetarpal, A. Kim, W. Kim, A. Klein, F. J. Klein, V. Kubarovsky, S. E. Kuhn, S. V. Kuleshov, V. Kuznetsov, N. D. Kvaltine, K. Livingston, H. Y. Lu, I. J. D. MacGregor, N. Markov, M. Mayer, J. McAndrew, B. McKinnon, C. A. Meyer, A. M. Micherdzinska, V. Mokeev, B. Moreno, H. Moutarde, E. Munevar, P. Nadel-Turonski, A. Ni, S. Niccolai, G. Niculescu, I. Niculescu, M. Osipenko, A. I. Ostrovidov, M. Paolone, L. Pappalardo, R. Paremuzyan, K. Park, S. Park, E. Pasyuk, S. Anefalos Pereira, E. Phelps, S. Pisano, O. Pogorelko, S. Pozdniakov, J. W. Price, S. Procureur, Y. Prok, D. Protopopescu, B. A. Raue, G. Ricco, D. Rimal, M. Ripani, G. Rosner, F. Sabatie, M. S. Saini, C. Salgado, D. Schott, R. A. Schumacher, E. Seder, H. Seraydaryan, Y. G. Sharabian, G. D. Smith, D. I. Sober, S. S. Stepanyan, S. Stepanyan, P. Stoler, I. Strakovsky, S. Strauch, M. Taiuti, W. Tang, C. E. Taylor, S. Tkachenko, M. Ungaro, H. Voskanyan, E. Voutier, D. Watts, L. B. Weinstein, D. P. Weygand, M. H. Wood, L. Zana, J. Zhang, B. Zhao, Z. W. Zhao

School of Physics and Astronomy

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

Abstract

We present studies of single-spin asymmetries for neutral pion electroproduction in semi-inclusive deep-inelastic scattering of 5.776 GeV polarized electrons from an unpolarized hydrogen target, using the CEBAF Large Acceptance Spectrometer (CLAS) at the Thomas Jefferson National Accelerator Facility. A substantial sin phi(h) amplitude has been measured in the distribution of the cross section asymmetry as a function of the azimuthal angle phi(h) of the produced neutral pion. The dependence of this amplitude on Bjorken x and on the pion transverse momentum is extracted with significantly higher precision than previous data and is compared to model calculations. (C) 2011 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	397-402
Number of pages	6
Journal	Physics Letters B
Volume	704
Issue number	5
DOIs	https://doi.org/10.1016/j.physletb.2011.09.044
Publication status	Published - 25 Oct 2011

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10.1016/j.physletb.2011.09.044

1-s2.0-S0370269311011178-main
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Final published version, 382 KB

Illuminating strongly interacting matter
Watts, D. (Principal Investigator)
STFC
1/06/09 → 31/12/13
Project: Research

Cite this

Aghasyan, M., Avakian, H., Rossi, P., De Sanctis, E., Hasch, D., Mirazita, M., Adikaram, D., Amaryan, M. J., Anghinolfi, M., Baghdasaryan, H., Ball, J., Battaglieri, M., Batourine, V., Bedlinskiy, I., Bennett, R. P., Biselli, A. S., Branford, D., Briscoe, W. J., Bueltmann, S., ... Zhao, Z. W. (2011). Precise measurements of beam spin asymmetries in semi-inclusive pi(0) production. Physics Letters B, 704(5), 397-402. https://doi.org/10.1016/j.physletb.2011.09.044

@article{4a7f93dfc37a418baafafc1fa4aafeb5,

title = "Precise measurements of beam spin asymmetries in semi-inclusive pi(0) production",

abstract = "We present studies of single-spin asymmetries for neutral pion electroproduction in semi-inclusive deep-inelastic scattering of 5.776 GeV polarized electrons from an unpolarized hydrogen target, using the CEBAF Large Acceptance Spectrometer (CLAS) at the Thomas Jefferson National Accelerator Facility. A substantial sin phi(h) amplitude has been measured in the distribution of the cross section asymmetry as a function of the azimuthal angle phi(h) of the produced neutral pion. The dependence of this amplitude on Bjorken x and on the pion transverse momentum is extracted with significantly higher precision than previous data and is compared to model calculations. (C) 2011 Elsevier B.V. All rights reserved.",

author = "M. Aghasyan and H. Avakian and P. Rossi and \{De Sanctis\}, E. and D. Hasch and M. Mirazita and D. Adikaram and Amaryan, \{M. J.\} and M. Anghinolfi and H. Baghdasaryan and J. Ball and M. Battaglieri and V. Batourine and I. Bedlinskiy and Bennett, \{R. P.\} and Biselli, \{A. S.\} and D. Branford and Briscoe, \{W. J.\} and S. Bueltmann and Burkert, \{V. D.\} and Carman, \{D. S.\} and S. Chandavar and Cole, \{P. L.\} and P. Collins and M. Contalbrigo and V. Crede and A. D'Angelo and A. Daniel and N. Dashyan and \{De Vita\}, R. and A. Deur and B. Dey and R. Dickson and C. Djalali and Dodge, \{G. E.\} and D. Doughty and R. Dupre and H. Egiyan and \{El Alaoui\}, A. and L. Elouadrhiri and P. Eugenio and G. Fedotov and S. Fegan and A. Fradi and Gabrielyan, \{M. Y.\} and M. Garcon and N. Gevorgyan and Gilfoyle, \{G. P.\} and Giovanetti, \{K. L.\} and Girod, \{F. X.\} and Goetz, \{J. T.\} and W. Gohn and E. Golovatch and Gothe, \{R. W.\} and L. Graham and Griffioen, \{K. A.\} and B. Guegan and M. Guidal and N. Guler and L. Guo and K. Hafidi and C. Hanretty and K. Hicks and M. Holtrop and Hyde, \{C. E.\} and Y. Ilieva and Ireland, \{D. G.\} and Isupov, \{E. L.\} and Jawalkar, \{S. S.\} and D. Jenkins and Jo, \{H. S.\} and K. Joo and D. Keller and M. Khandaker and P. Khetarpal and A. Kim and W. Kim and A. Klein and Klein, \{F. J.\} and V. Kubarovsky and Kuhn, \{S. E.\} and Kuleshov, \{S. V.\} and V. Kuznetsov and Kvaltine, \{N. D.\} and K. Livingston and Lu, \{H. Y.\} and MacGregor, \{I. J. D.\} and N. Markov and M. Mayer and J. McAndrew and B. McKinnon and Meyer, \{C. A.\} and Micherdzinska, \{A. M.\} and V. Mokeev and B. Moreno and H. Moutarde and E. Munevar and P. Nadel-Turonski and A. Ni and S. Niccolai and G. Niculescu and I. Niculescu and M. Osipenko and Ostrovidov, \{A. I.\} and M. Paolone and L. Pappalardo and R. Paremuzyan and K. Park and S. Park and E. Pasyuk and Pereira, \{S. Anefalos\} and E. Phelps and S. Pisano and O. Pogorelko and S. Pozdniakov and Price, \{J. W.\} and S. Procureur and Y. Prok and D. Protopopescu and Raue, \{B. A.\} and G. Ricco and D. Rimal and M. Ripani and G. Rosner and F. Sabatie and Saini, \{M. S.\} and C. Salgado and D. Schott and Schumacher, \{R. A.\} and E. Seder and H. Seraydaryan and Sharabian, \{Y. G.\} and Smith, \{G. D.\} and Sober, \{D. I.\} and Stepanyan, \{S. S.\} and S. Stepanyan and P. Stoler and I. Strakovsky and S. Strauch and M. Taiuti and W. Tang and Taylor, \{C. E.\} and S. Tkachenko and M. Ungaro and H. Voskanyan and E. Voutier and D. Watts and Weinstein, \{L. B.\} and Weygand, \{D. P.\} and Wood, \{M. H.\} and L. Zana and J. Zhang and B. Zhao and Zhao, \{Z. W.\}",

year = "2011",

month = oct,

day = "25",

doi = "10.1016/j.physletb.2011.09.044",

language = "English",

volume = "704",

pages = "397--402",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier",

number = "5",

}

Aghasyan, M, Avakian, H, Rossi, P, De Sanctis, E, Hasch, D, Mirazita, M, Adikaram, D, Amaryan, MJ, Anghinolfi, M, Baghdasaryan, H, Ball, J, Battaglieri, M, Batourine, V, Bedlinskiy, I, Bennett, RP, Biselli, AS, Branford, D, Briscoe, WJ, Bueltmann, S, Burkert, VD, Carman, DS, Chandavar, S, Cole, PL, Collins, P, Contalbrigo, M, Crede, V, D'Angelo, A, Daniel, A, Dashyan, N, De Vita, R, Deur, A, Dey, B, Dickson, R, Djalali, C, Dodge, GE, Doughty, D, Dupre, R, Egiyan, H, El Alaoui, A, Elouadrhiri, L, Eugenio, P, Fedotov, G, Fegan, S, Fradi, A, Gabrielyan, MY, Garcon, M, Gevorgyan, N, Gilfoyle, GP, Giovanetti, KL, Girod, FX, Goetz, JT, Gohn, W, Golovatch, E, Gothe, RW, Graham, L, Griffioen, KA, Guegan, B, Guidal, M, Guler, N, Guo, L, Hafidi, K, Hanretty, C, Hicks, K, Holtrop, M, Hyde, CE, Ilieva, Y, Ireland, DG, Isupov, EL, Jawalkar, SS, Jenkins, D, Jo, HS, Joo, K, Keller, D, Khandaker, M, Khetarpal, P, Kim, A, Kim, W, Klein, A, Klein, FJ, Kubarovsky, V, Kuhn, SE, Kuleshov, SV, Kuznetsov, V, Kvaltine, ND, Livingston, K, Lu, HY, MacGregor, IJD, Markov, N, Mayer, M, McAndrew, J, McKinnon, B, Meyer, CA, Micherdzinska, AM, Mokeev, V, Moreno, B, Moutarde, H, Munevar, E, Nadel-Turonski, P, Ni, A, Niccolai, S, Niculescu, G, Niculescu, I, Osipenko, M, Ostrovidov, AI, Paolone, M, Pappalardo, L, Paremuzyan, R, Park, K, Park, S, Pasyuk, E, Pereira, SA, Phelps, E, Pisano, S, Pogorelko, O, Pozdniakov, S, Price, JW, Procureur, S, Prok, Y, Protopopescu, D, Raue, BA, Ricco, G, Rimal, D, Ripani, M, Rosner, G, Sabatie, F, Saini, MS, Salgado, C, Schott, D, Schumacher, RA, Seder, E, Seraydaryan, H, Sharabian, YG, Smith, GD, Sober, DI, Stepanyan, SS, Stepanyan, S, Stoler, P, Strakovsky, I, Strauch, S, Taiuti, M, Tang, W, Taylor, CE, Tkachenko, S, Ungaro, M, Voskanyan, H, Voutier, E, Watts, D, Weinstein, LB, Weygand, DP, Wood, MH, Zana, L, Zhang, J, Zhao, B & Zhao, ZW 2011, 'Precise measurements of beam spin asymmetries in semi-inclusive pi(0) production', Physics Letters B, vol. 704, no. 5, pp. 397-402. https://doi.org/10.1016/j.physletb.2011.09.044

TY - JOUR

T1 - Precise measurements of beam spin asymmetries in semi-inclusive pi(0) production

AU - Aghasyan, M.

AU - Avakian, H.

AU - Rossi, P.

AU - De Sanctis, E.

AU - Hasch, D.

AU - Mirazita, M.

AU - Adikaram, D.

AU - Amaryan, M. J.

AU - Anghinolfi, M.

AU - Baghdasaryan, H.

AU - Ball, J.

AU - Battaglieri, M.

AU - Batourine, V.

AU - Bedlinskiy, I.

AU - Bennett, R. P.

AU - Biselli, A. S.

AU - Branford, D.

AU - Briscoe, W. J.

AU - Bueltmann, S.

AU - Burkert, V. D.

AU - Carman, D. S.

AU - Chandavar, S.

AU - Cole, P. L.

AU - Collins, P.

AU - Contalbrigo, M.

AU - Crede, V.

AU - D'Angelo, A.

AU - Daniel, A.

AU - Dashyan, N.

AU - De Vita, R.

AU - Deur, A.

AU - Dey, B.

AU - Dickson, R.

AU - Djalali, C.

AU - Dodge, G. E.

AU - Doughty, D.

AU - Dupre, R.

AU - Egiyan, H.

AU - El Alaoui, A.

AU - Elouadrhiri, L.

AU - Eugenio, P.

AU - Fedotov, G.

AU - Fegan, S.

AU - Fradi, A.

AU - Gabrielyan, M. Y.

AU - Garcon, M.

AU - Gevorgyan, N.

AU - Gilfoyle, G. P.

AU - Giovanetti, K. L.

AU - Girod, F. X.

AU - Goetz, J. T.

AU - Gohn, W.

AU - Golovatch, E.

AU - Gothe, R. W.

AU - Graham, L.

AU - Griffioen, K. A.

AU - Guegan, B.

AU - Guidal, M.

AU - Guler, N.

AU - Guo, L.

AU - Hafidi, K.

AU - Hanretty, C.

AU - Hicks, K.

AU - Holtrop, M.

AU - Hyde, C. E.

AU - Ilieva, Y.

AU - Ireland, D. G.

AU - Isupov, E. L.

AU - Jawalkar, S. S.

AU - Jenkins, D.

AU - Jo, H. S.

AU - Joo, K.

AU - Keller, D.

AU - Khandaker, M.

AU - Khetarpal, P.

AU - Kim, A.

AU - Kim, W.

AU - Klein, A.

AU - Klein, F. J.

AU - Kubarovsky, V.

AU - Kuhn, S. E.

AU - Kuleshov, S. V.

AU - Kuznetsov, V.

AU - Kvaltine, N. D.

AU - Livingston, K.

AU - Lu, H. Y.

AU - MacGregor, I. J. D.

AU - Markov, N.

AU - Mayer, M.

AU - McAndrew, J.

AU - McKinnon, B.

AU - Meyer, C. A.

AU - Micherdzinska, A. M.

AU - Mokeev, V.

AU - Moreno, B.

AU - Moutarde, H.

AU - Munevar, E.

AU - Nadel-Turonski, P.

AU - Ni, A.

AU - Niccolai, S.

AU - Niculescu, G.

AU - Niculescu, I.

AU - Osipenko, M.

AU - Ostrovidov, A. I.

AU - Paolone, M.

AU - Pappalardo, L.

AU - Paremuzyan, R.

AU - Park, K.

AU - Park, S.

AU - Pasyuk, E.

AU - Pereira, S. Anefalos

AU - Phelps, E.

AU - Pisano, S.

AU - Pogorelko, O.

AU - Pozdniakov, S.

AU - Price, J. W.

AU - Procureur, S.

AU - Prok, Y.

AU - Protopopescu, D.

AU - Raue, B. A.

AU - Ricco, G.

AU - Rimal, D.

AU - Ripani, M.

AU - Rosner, G.

AU - Sabatie, F.

AU - Saini, M. S.

AU - Salgado, C.

AU - Schott, D.

AU - Schumacher, R. A.

AU - Seder, E.

AU - Seraydaryan, H.

AU - Sharabian, Y. G.

AU - Smith, G. D.

AU - Sober, D. I.

AU - Stepanyan, S. S.

AU - Stepanyan, S.

AU - Stoler, P.

AU - Strakovsky, I.

AU - Strauch, S.

AU - Taiuti, M.

AU - Tang, W.

AU - Taylor, C. E.

AU - Tkachenko, S.

AU - Ungaro, M.

AU - Voskanyan, H.

AU - Voutier, E.

AU - Watts, D.

AU - Weinstein, L. B.

AU - Weygand, D. P.

AU - Wood, M. H.

AU - Zana, L.

AU - Zhang, J.

AU - Zhao, B.

AU - Zhao, Z. W.

PY - 2011/10/25

Y1 - 2011/10/25

N2 - We present studies of single-spin asymmetries for neutral pion electroproduction in semi-inclusive deep-inelastic scattering of 5.776 GeV polarized electrons from an unpolarized hydrogen target, using the CEBAF Large Acceptance Spectrometer (CLAS) at the Thomas Jefferson National Accelerator Facility. A substantial sin phi(h) amplitude has been measured in the distribution of the cross section asymmetry as a function of the azimuthal angle phi(h) of the produced neutral pion. The dependence of this amplitude on Bjorken x and on the pion transverse momentum is extracted with significantly higher precision than previous data and is compared to model calculations. (C) 2011 Elsevier B.V. All rights reserved.

AB - We present studies of single-spin asymmetries for neutral pion electroproduction in semi-inclusive deep-inelastic scattering of 5.776 GeV polarized electrons from an unpolarized hydrogen target, using the CEBAF Large Acceptance Spectrometer (CLAS) at the Thomas Jefferson National Accelerator Facility. A substantial sin phi(h) amplitude has been measured in the distribution of the cross section asymmetry as a function of the azimuthal angle phi(h) of the produced neutral pion. The dependence of this amplitude on Bjorken x and on the pion transverse momentum is extracted with significantly higher precision than previous data and is compared to model calculations. (C) 2011 Elsevier B.V. All rights reserved.

U2 - 10.1016/j.physletb.2011.09.044

DO - 10.1016/j.physletb.2011.09.044

M3 - Article

SN - 0370-2693

VL - 704

SP - 397

EP - 402

JO - Physics Letters B

JF - Physics Letters B

IS - 5

ER -

Precise measurements of beam spin asymmetries in semi-inclusive pi(0) production

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