Beam Spin Asymmetry in Semi-Inclusive Electroproduction of Hadron Pairs

Mirazita, M.; Kühn, Sebastian Paul; Wood, M. H.; Pappalardo, L. L.; Tichelbäcker, Laura; Raue, B. A.; Milner, R. G.; Venturelli, L.; Rossi, P.; Khanal, A.; Mullen, C.; Niculescu, G.; Schmidt, Anne; Wei, X.; Sharabian, Y. G.; Joo, K.; Camacho, C. Munoz; Heddle, D.; Stepanyan, S.; Paremuzyan, R.; Hayward, T. B.; Briscoe, W. J.; Hakobyan, H.; Deur, A.; Lanza, L.; Battaglieri, M.; Clary, B.; Bossù, F.; Gilfoyle, G. P.; Biselli, A. S.; Carman, D. S.; Voskanyan, H.; Hattawy, M.; Bedlinskiy, I.; Ciullo, G.; Marchand, D.; Angelini, Giovanni; Kubarovsky, V.; Dilks, C.; Amaryan, M. J.; Eugenio, P.; Soto, O.; Guo, L.; Ungaro, M.; Strakovsky, I. I.; Jo, H. S.; Pasyuk, E.; Ilieva, Y.; Gavalian, G.; Sparveris, N.; Egiyan, H.; Atac, H.; Djalali, C.; Holtrop, M.; Phelps, W.; Yale, B.; Poudel, J.; Mokeev, V.; Chetry, T.; Zachariou, N.; Chatagnon, P.; Girod, F. X.; Fersch, R.; Paolone, M.; Hicks, K.; Keller, D.; Contalbrigo, M.; Ehrhart, M.; Golovatch, E.; Fegan, S.; Hobart, A.; Diehl, S.; Sabatié, F.; McKinnon, B.; Giovanetti, K. L.; Tyler, N.; De Vita, R.; Park, K.; Livingston, K.; Rizzo, A.; Neupane, K.; Dashyan, N.; Hafidi, K.; Boiarinov, S.; Kim, W.; Jenkins, D.; Ritman, J.; Burkert, V. D.; Avakian, H.; Carvajal, J. C.; Klein, Felix; Baltzell, N. A.; Zhang, Jiayuan; Watts, D.; Zhao, Z. W.; D’Angelo, A.; Crede, V.; Forest, T. A.; Glazier, D. I.; Adhikari, S.; MacGregor, I. J. D.; Marsicano, L.; Markov, Alexandr; Prok, Y.; Ishkhanov, B. S.; Pocanic, D.; Shrestha, U.; Kim, C. W.; Isupov, E. L.; Alaoui, A. El; Griffioen, K. A.; Bianconi, A.; Courtoy, A.; Cole, P. L.; Vossen, A.; Salgado, C.; Strauch, S.; Huang, Q.; Bulumulla, D.; Mineeva, T.; Pisano, S.; Khandaker, M.; Fassi, L. El; Lenisa, P.; Pogorelko, O.; Barion, L.; Wei, Daikang; Brooks, W. K.; Filippi, A.; Benmokhtar, Fatiha; Mascagna, V.; Dupre, R.; Ghandilyan, Y.; Celentano, A.; Leali, M.; O’Connell, T.; Defurne, M.; Gothe, R. W.; Osipenko, M.; Voutier, E.; Ireland, D. G.; Ripani, M.; Guidal, M.

doi:10.1103/PhysRevLett.126.062002

Journal Article

FZJ-2021-02106

Beam Spin Asymmetry in Semi-Inclusive Electroproduction of Hadron Pairs

Mirazita, M. ; Avakian, H. ; Courtoy, A. ; Pisano, S. ; Adhikari, S. ; Amaryan, M. J. ; Angelini, G. ; Atac, H. ; Baltzell, N. A. ; Barion, L. ; Battaglieri, M. ; Bedlinskiy, I. ; Benmokhtar, F. ; Bianconi, A. ; Biselli, A. S. ; Bossù, F. ; Boiarinov, S. ; Briscoe, W. J. ; Brooks, W. K. ; Bulumulla, D. ; Burkert, V. D. ; Carman, D. S. ; Carvajal, J. C. ; Celentano, A. ; Chatagnon, P. ; Chetry, T. ; Ciullo, G. ; Clary, B. ; Cole, P. L. ; Contalbrigo, M. ; Crede, V. ; D’Angelo, A. ; Dashyan, N. ; De Vita, R. ; Defurne, M. ; Deur, A. ; Diehl, S. ; Dilks, C. ; Djalali, C. ; Dupre, R. ; Egiyan, H. ; Ehrhart, M. ; Alaoui, A. E. ; Fassi, L. E. ; Eugenio, P. ; Fegan, S. ; Fersch, R. ; Filippi, A. ; Forest, T. A. ; Ghandilyan, Y. ; Gavalian, G. ; Gilfoyle, G. P. ; Giovanetti, K. L. ; Girod, F. X. ; Glazier, D. I. ; Golovatch, E. ; Gothe, R. W. ; Griffioen, K. A. ; Guidal, M. ; Guo, L.FZJ* ; Hafidi, K. ; Hakobyan, H. ; Hattawy, M. ; Hayward, T. B. ; Heddle, D. ; Hicks, K. ; Hobart, A. ; Holtrop, M. ; Huang, Q. ; Ilieva, Y. ; Ireland, D. G. ; Ishkhanov, B. S. ; Isupov, E. L. ; Jenkins, D. ; Jo, H. S.FZJ* ; Joo, K. ; Keller, D. ; Khanal, A. ; Khandaker, M. ; Kim, C. W. ; Kim, W. ; Klein, F.FZJ* ; Kubarovsky, V. ; Kühn, S. P.FZJ* ; Lanza, L. ; Leali, M. ; Lenisa, P. ; MacGregor, I. J. D. ; Livingston, K. ; Marchand, D. ; Markov, A. ; Marsicano, L. ; Mascagna, V. ; McKinnon, B. ; Milner, R. G. ; Mineeva, T. ; Mokeev, V. ; Mullen, C. ; Camacho, C. M. ; Neupane, K. ; Niculescu, G. ; O’Connell, T. ; Osipenko, M. ; Paolone, M. ; Pappalardo, L. L. ; Paremuzyan, R. ; Park, K. ; Pasyuk, E. ; Phelps, W. ; Pocanic, D. ; Pogorelko, O. ; Poudel, J. ; Prok, Y. ; Raue, B. A. ; Ripani, M. ; Ritman, J. (Corresponding author)FZJ* ; Rizzo, A. ; Rossi, P. ; Sabatié, F. ; Salgado, C. ; Schmidt, A.FZJ* ; Tichelbäcker, L.FZJ* ; Sharabian, Y. G. ; Shrestha, U. ; Soto, O. ; Sparveris, N. ; Stepanyan, S. ; Strakovsky, I. I. ; Strauch, S. ; Tyler, N. ; Ungaro, M. ; Venturelli, L. ; Voskanyan, H. ; Vossen, A. ; Voutier, E. ; Watts, D. ; Wei, D.FZJ* ; Wei, X.FZJ* ; Wood, M. H. ; Yale, B. ; Zachariou, N. ; Zhang, J.FZJ* ; Zhao, Z. W.

2021
APS College Park, Md.

Physical review letters 126(6), 062002 (2021) [10.1103/PhysRevLett.126.062002]

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Please use a persistent id in citations: http://hdl.handle.net/2128/27770 doi:10.1103/PhysRevLett.126.062002

Abstract: A first measurement of the longitudinal beam spin asymmetry ALU in the semi-inclusive electroproduction of pairs of charged pions is reported. ALU is a higher-twist observable and offers the cleanest access to the nucleon twist-3 parton distribution function e(x). Data have been collected in the Hall-B at Jefferson Lab by impinging a 5.498 GeV electron beam on a liquid-hydrogen target, and reconstructing the scattered electron and the pion pair with the CLAS detector. One-dimensional projections of the sin(phiR) moments of ALU are extracted for the kinematic variables of interest in the valence quark region. The understanding of di-hadron production is essential for the interpretation of observables in single hadron production in semi-inclusive DIS, and pioneering measurements of single spin asymmetries in di-hadron production open a new avenue in studies of QCD dynamics.

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ddc:530

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Experimentelle Hadronstruktur (IKP-1)

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Datensatz erzeugt am 2021-05-10, letzte Änderung am 2021-06-23

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