First Measurement of $\Lambda$ Electroproduction off Nuclei in the Current and Target Fragmentation Regions
- Chetry, T.
- El Fassi, L.
- Brooks, W.K.
- Dupré, R.
- El Alaoui, A.
- Hafidi, K.
- Achenbach, P.
- Adhikari, K.P.
- Akbar, Z.
- Armstrong, W.R.
- Arratia, M.
- Atac, H.
- Avakian, H.
- Baashen, L.
- Baltzell, N.A.
- Barion, L.
- Bashkanov, M.
- Battaglieri, M.
- Bedlinskiy, I.
- Benkel, B.
- Benmokhtar, F.
- Bianconi, A.
- Biselli, A.S.
- Bondi, M.
- Booth, W.A.
- Bossù, F.
- Boiarinov, S.
- Brinkmann, K.-Th.
- Briscoe, W.J.
- Bulumulla, D.
- Burkert, V.D.
- Carman, D.S.
- Carvajal, J.C.
- Celentano, A.
- Chatagnon, P.
- Chesnokov, V.
- Ciullo, G.
- Cole, P.L.
- Contalbrigo, M.
- Costantini, G.
- d'Angelo, A.
- Dashyan, N.
- de Vita, R.
- Defurne, M.
- Deur, A.
- Diehl, S.
- Djalali, C.
- Egiyan, H.
- Elouadrhiri, L.
- Eugenio, P.
- Fegan, S.
- Filippi, A.
- Gavalian, G.
- Ghandilyan, Y.
- Gilfoyle, G.P.
- Glazier, D.I.
- Golubenko, A.A.
- Gosta, G.
- Gothe, R.W.
- Griffioen, K.A.
- Guidal, M.
- Guo, L.
- Hakobyan, H.
- Hattawy, M.
- Hayward, T.B.
- Heddle, D.
- Hobart, A.
- Holtrop, M.
- Ilieva, Y.
- Ireland, D.G.
- Isupov, E.L.
- Jenkins, D.
- Jo, H.S.
- Kabir, M.L.
- Khanal, A.
- Khandaker, M.
- Kim, A.
- Kim, W.
- Klein, F.J.
- Kripko, A.
- Kubarovsky, V.
- Lagerquist, V.
- Lanza, L.
- Leali, M.
- Lee, S.
- Lenisa, P.
- Li, X.
- Livingston, K.
- Macgregor, I..J.D.
- Marchand, D.
- Mascagna, V.
- Mckinnon, B.
- Mclauchlin, C.
- Meziani, Z.E.
- Migliorati, S.
- Mineeva, T.
- Mirazita, M.
- Mokeev, V.
- Munoz Camacho, C.
- Nadel-Turonski, P.
- Neupane, K.
- Niccolai, S.
- Nicol, M.
- Niculescu, G.
- Osipenko, M.
- Ostrovidov, A.I.
- Pandey, P.
- Paolone, M.
- Pappalardo, L.L.
- Paremuzyan, R.
- Pasyuk, E.
- Paul, S.J.
- Phelps, W.
- Pilleux, N.
- Pokhrel, M.
- Poudel, J.
- Price, J.W.
- Prok, Y.
- Raue, B.A.
- Reed, T.
- Richards, J.
- Ripani, M.
- Ritman, J.
- Rosner, G.
- Sabatié, F.
- Salgado, C.
- Schadmand, S.
- Schmidt, A.
- Schumacher, R.A.
- Sharabian, Y.G.
- Shirokov, E.V.
- Shrestha, U.
- Simmerling, P.
- Sokhan, D.
- Sparveris, N.
- Stepanyan, S.
- Strakovsky, I.I.
- Strauch, S.
- Tan, J.A.
- Trotta, N.
- Tyson, R.
- Ungaro, M.
- Vallarino, S.
- Venturelli, L.
- Voskanyan, H.
- Voutier, E.
- Wei, X.
- Weinstein, L.B.
- Williams, R.
- Wishart, R.
- Wood, M.H.
- Zachariou, N.
- Zhao, Z.W.
- Zurek, M.
DOIAbstract
International audienceWe report results of $\Lambda$ hyperon production in semi-inclusive deep-inelastic scattering off deuterium, carbon, iron, and lead targets obtained with the CLAS detector and the CEBAF 5.014 GeV electron beam. These results represent the first measurements of the $\Lambda$ multiplicity ratio and transverse momentum broadening as a function of the energy fraction ($z$) in the current and target fragmentation regions. The multiplicity ratio exhibits a strong suppression at high $z$ and an enhancement at low $z$. The measured transverse momentum broadening is an order of magnitude greater than that seen for light mesons. This indicates that the propagating entity interacts very strongly with the nuclear medium, which sug...
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