Multidimensional, High Precision Measurements of Beam Single Spin Asymmetries in Semi-inclusive 
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 Electroproduction off Protons in the Valence Region

Diehl, Stefan; Kim, A; Angelini, G.; Joo, K. S.; Adhikari, S.; Amaryan, M. J.; Arratia, M.; Atac, H.; Avakian, H.; Gayoso, C. Ayerbe; Baltzell, N. A.; Barion, L.; Bastami, S.; Battaglieri, M.; Bedlinskiy, I.; Benmokhtar, F.; Bianconi, A.; Biselli, A.; Bondí, M.; Bossù, F.; Boiarinov, S.; Brinkmann, K.-Th.; Briscoe, W. J.; Brooks, W. K.; Bulumulla, D.; Burkert, V. D.; Carman, D. S.; Carvajal, J.; Celentano, A.; Chatagnon, P.; Chetry, T.; Ciullo, G.; Clark, L.; Clary, B. A.; Cole, P. L.; Contalbrigo, M.; Costantini, G.; Credé, V.; D’Angelo, A.; Dashyan, N.; Vita, R. De; Defurne, M.; Deur, A.; Dilks, C.; Djalali, C.; Dugger, M.; Dupré, R.; Egiyan, H.; Ehrhart, M.; Alaoui, A. El; Fassi, L. El; Elouadrhiri, L.; Fegan, S.; Filippi, A.; Forest, T. A.; Gavalian, G.; Gilfoyle, G. P.; Girod, F. X.; Glazier, D. I.; Golubenko, A. A.; Gothe, R.; Gotra, Y.; Griffioen, K. A.; Guidal, M.; Hafidi, K.; Hakobyan, H.; Hattawy, M.; Hauenstein, F.; Hayward, T. B.; Heddle, D.; Hicks, K.; Hobart, A.; Holtrop, M.; Hyde, Charles; Ireland, D. G.; Isupov, E. L.; Jo, H. S.; Johnston, Robert D; Joosten, S.; Keller, D.; Khachatryan, M.; Khanal, A.; Kim, W; Kripkó, Á.; Kubarovsky, V.; Kuhn, S. E.; Lanza, L.; Leali, M.; Lee, S; Lenisa, P.; Livingston, K.; Lü, Zhun; MacGregor, I. J. D.; Marchand, D.; Markov, N.; Marsicano, L.; Mascagna, V.; McKinnon, B.; Meziani, Z. E.; Milner, R.; Mineeva, T.; Mirazita, M.; Mokeev, V.; Moran, Patrick; Movsisyan, A.; Camacho, C. Muñoz; Nadel-Turoński, P.; Naidoo, P.; Nanda, S.; Neupane, K.; Niccolai, S.; Niculescu, G.; O’Connell, T.; Osipenko, M.; Paolone, M.; Pappalardo, L. L.; Paremuzyan, R.; Pasyuk, E.; Phelps, W.; Pogorelko, O.; Prok, Y.; Prokudin, Alexei; Raue, B. A.; Ripani, M.; Ritman, J.; Rizzo, A.; Roberts, Craig D.; Rossi, P.; Rowley, J.; Sabatié, F.; Salgado, C.; Schmidt, Axel; Segarra, E.P.; Sharabian, Y. G.; Shrestha, Uttam; Simmerling, P.; Sokhan, D.; Soto, Orlando; Sparveris, N.; Stepanyan, S.; Stoler, P.; Strakovsky, I. I.; Strauch, S.; Tezgin, Kemal; Thornton, Adam; Tyler, N. J. C.; Tyson, R.; Ungaro, M.; Venturelli, L.; Voskanyan, H.; Vossen, A.; Voutier, E.; Watts, D. P.; Wei, K.; Wei, X.; Xu, Shu-Sheng; Yale, B.; Zachariou, N.; Zhang, J

doi:10.1103/physrevlett.128.062005

Cited by 9 publications

(1 citation statement)

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“…With the advent of new experimental data, e.g. [57], and facilities, both the collinear and the TMD extractions of e(x) might gain in accuracy. This will be achieved if fragmentation functions, who will play an increasingly important role, are themselves improved.…”

Section: Discussionmentioning

confidence: 99%

Extraction of the higher-twist parton distribution $e(x)$ from CLAS data

Courtoy,

Miramontes,

Avakian

et al. 2022

Preprint

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This manuscript presents the new analysis of recent CLAS and CLAS12 data aimed at the extraction of e(x). This publication benefits from a proof-of-principle analysis of a smaller preliminary data set published in a preprint form in 1405.7659, [1].We present the first point-by-point extraction of a twist-3 PDF. The scalar PDF, e(x), is accessed through the analysis of the data for the sin φR-moment of the beam-spin asymmetry for dihadron production in semi-inclusive DIS off proton target at CLAS and CLAS12. The dihadron formalism allows for use of collinear framework, hence calling for a minimal set of approximations and hypotheses. The extracted PDF e(x) carries insights into the physics of the largely-unexplored quark-gluon correlations, and its first Mellin moment is related to the marginally-known scalar charge of the nucleon. We show that the proton flavor combination of the scalar PDF is non-zero at more than 74% probability.

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Section: Discussionmentioning

confidence: 99%