We present the first measurement of dihadron angular correlations in electron-nucleus scattering. The data were taken with the CLAS detector and a 5.0 GeVelectron beam incident on deuterium, carbon, iron, and lead targets. Relative to deuterium, the nuclear yields of charged-pion pairs show a strong suppression for azimuthally opposite pairs, no suppression for azimuthally nearby pairs, and an enhancement of pairs with large invariant mass. These effects grow with increased nuclear size. The data are qualitatively described by the GIBUU model, which suggests that hadrons form near the nuclear surface and undergo multiple scattering in nuclei.These results show that angular correlation studies can open a new way to elucidate how hadrons form and interact inside nuclei.

Paul, S.j., Morán, S., Arratia, M., El Alaoui, A., Hakobyan, H., Brooks, W., et al. (2022). Observation of azimuth-dependent suppression of Hadron pairs in electron scattering off nuclei. PHYSICAL REVIEW LETTERS, 129(18) [10.1103/PhysRevLett.129.182501].

Observation of azimuth-dependent suppression of Hadron pairs in electron scattering off nuclei

D'Angelo, A
Membro del Collaboration Group
;
Lanza, L
Membro del Collaboration Group
;
2022-10-28

Abstract

We present the first measurement of dihadron angular correlations in electron-nucleus scattering. The data were taken with the CLAS detector and a 5.0 GeVelectron beam incident on deuterium, carbon, iron, and lead targets. Relative to deuterium, the nuclear yields of charged-pion pairs show a strong suppression for azimuthally opposite pairs, no suppression for azimuthally nearby pairs, and an enhancement of pairs with large invariant mass. These effects grow with increased nuclear size. The data are qualitatively described by the GIBUU model, which suggests that hadrons form near the nuclear surface and undergo multiple scattering in nuclei.These results show that angular correlation studies can open a new way to elucidate how hadrons form and interact inside nuclei.
28-ott-2022
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore FIS/04 - FISICA NUCLEARE E SUBNUCLEARE
English
Con Impact Factor ISI
CLAS Collaboration
Paul, S.j., Morán, S., Arratia, M., El Alaoui, A., Hakobyan, H., Brooks, W., et al. (2022). Observation of azimuth-dependent suppression of Hadron pairs in electron scattering off nuclei. PHYSICAL REVIEW LETTERS, 129(18) [10.1103/PhysRevLett.129.182501].
Paul, Sj; Morán, S; Arratia, M; El Alaoui, A; Hakobyan, H; Brooks, W; Amaryan, Mj; Armstrong, Wr; Atac, H; Baashen, L; Baltzell, Na; Barion, L; Bashkanov, M; Battaglieri, M; Bedlinskiy, I; Benkel, B; Benmokhtar, F; Bianconi, A; Biondo, L; Biselli, As; Bondi, M; Bossù, F; Boiarinov, S; Brinkmann, K; Briscoe, Wj; Bulumulla, D; Burkert, Vd; Capobianco, R; Carman, Ds; Celentano, A; Chesnokov, V; Chetry, T; Ciullo, G; Cole, Pl; Contalbrigo, M; Costantini, G; D'Angelo, A; Dashyan, N; De Vita, R; Defurne, M; Deur, A; Diehl, S; Dilks, C; Djalali, C; Dupre, R; Egiyan, H; El Fassi, L; Eugenio, P; Fegan, S; Filippi, A; Gavalian, G; Ghandilyan, Y; Gilfoyle, Gp; Golubenko, Aa; Gosta, G; Gothe, Rw; Griffioen, Ka; Guidal, M; Hattawy, M; Hayward, Tb; Heddle, D; Hobart, A; Holtrop, M; Ilieva, Y; Ireland, Dg; Isupov, El; Jo, Hs; Johnston, R; Joo, K; Joosten, S; Keller, D; Khanal, A; Khandaker, M; Kim, W; Kripko, A; Kubarovsky, V; Lagerquist, V; Lanza, L; Leali, M; Lee, S; Lenisa, P; Li, X; Livingston, K; Macgregor, Ijd; Marchand, D; Mascagna, V; Mckinnon, B; Meziani, Ze; Migliorati, S; Milner, Rg; Mineeva, T; Mirazita, M; Mokeev, Vi; Moran, P; Munoz Camacho, C; Neupane, K; Nguyen, D; Niccolai, S; Niculescu, G; Osipenko, M; Ostrovidov, Ai; Pandey, P; Paolone, M; Pappalardo, Ll; Paremuzyan, R; Pasyuk, E; Phelps, W; Pilleux, N; Pocanic, D; Pogorelko, O; Pokhrel, M; Poudel, J; Price, Jw; Prok, Y; Raue, Ba; Reed, T; Ripani, M; Rosner, G; Sabatié, F; Salgado, C; Schmidt, A; Schumacher, Ra; Sharabian, Yg; Shirokov, Ev; Shrestha, U; Simmerling, P; Sokhan, D; Sparveris, N; Stepanyan, S; Strakovsky, Ii; Strauch, S; Tan, Ja; Tyson, R; Ungaro, M; Vallarino, S; Venturelli, L; Voskanyan, H; Voutier, E; Wei, X; Wishart, R; Wood, Mh; Zachariou, N; Zhao, Zw; Ziegler, V; Zurek, M
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/319277
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