Deuteron and anti-deuteron production in e+ e- collisions at the Z resonance

Schael, S; Barate, R; Brunelie,; R, R; DE BONIS, I; Decamp, D; Goy, C; Ze, J; Quel, S; Lees, J; Martin, F; Merle, E; Minard, M; Pietrzyk, B; Trocme, B; Bravo, S; Casado, M; Chmeissani, M; Crespo, J; Fernandez, E; FERNANDEZ BOSMAN, M; Garrido, L; Martinez, M; Pacheco, A; Ruiz, H; Colaleo, A; Creanza, D; DE FILIPPIS, N; DE PALMA, M; Iaselli, G; Maggi, G; Maggi, M; Nuzzo, S; Ranieri, A; Raso, G; Ruggieri, F; Selvaggi, G; Silvestris, L; Tempesta, P; Tricomi, A; Zito, G; Huang, X; Lin, J; Ouyang, Q; Wang, T; Xie, Y; R, X; Xue, S; Zhang, J; Zhang, L; Zhao, W; Abbaneo, D; Barklow, T; Buchmu,; Ller, O; Cattaneo, M; Clerbaux, B; Drevermann, H; Forty, R; Frank, M; Gianotti, F; Hansen, J; Harvey, J; Hutchcroft, D; Janot, P; Jost, B; Kado, M; Mato, P; Moutoussi, A; Ranjard, F; Rolandi, L; Schlatter, D; Teubert, F; Valassi, A; Videau, I; Badaud, F; Dessagne, S; Falvard, A; Fayolle, D; Gay, P; Jousset, J; Michel, B; Monteil, S; Pallin, D; Pascolo, J; Perret, P; Hansen, J; Hansen, J; Hansen, P; Kraan, A; Nilsson, B; Kyriakis, A; Markou, C; Simopoulou, E; Vayaki, A; Zachariadou, K; Blondel, A; Brient, J; Machefert, F; Rouge, A; Videau, H; Ciulli, V; Focardi, E; Parrini, G; Antonelli, A; Antonelli, M; Bencivenni, G; Bossi, F; Capon, G; Cerutti, F; Chiarella, V; Laurelli, P; Mannocchi, G; Murtas, G; Passalacqua, L; Kennedy, J; Lynch, J; Negus, P; O'Shea, V; Thompson, A; Wasserbaech, S; Cavanaugh, R; Dhamotharan, S; Geweniger, C; Hanke, P; Hepp, V; Kluge, E; Putzer, A; Stenzel, H; Tittel, K; Wunsch, M; Beuselinck, R; Cameron, W; Davies, G; Dornan, P; Girone, M; Marinelli, N; Nowell, J; Rutherford, S; Sedgbeer, J; Thompson, J; White, R; Ghete, V; Girtler, P; Kneringer, E; Kuhn, D; Rudolph, G; BOUHOVA THACKER, E; Bowdery, C; Clarke, D; Ellis, G; Finch, A; Foster, F; Hughes, G; Rwl, J; Pearson, M; Robertson, N; Sloan, T; Smizanska, M; VAN DER AA, O; Delaere, C; Leibenguth, G; Lemaitre, V; Blumenschein, U; Ho,; Lldorfer, F; Jakobs, K; Kayser, F; Mu,; Ller, A; Renk, B; Sander, H; Schmeling, S; Wachsmuth, H; Zeitnitz, C; Ziegler, T; Bonissent, A; Coyle, P; Curtil, C; Ealet, A; Fouchez, D; Payre, P; Tilquin, A; Ragusa, F; David, A

doi:10.1016/j.physletb.2006.06.043

Deuteron and anti-deuteron production in Z decays has been observed in the ALEPH experiment at LEP. The production rate of anti-deuterons is measured to be per hadronic Z decay in the anti-deuteron momentum range from 0.62 to 1.03 GeV/c. The coalescence parameter , which characterizes the likelihood of anti-deuteron production, is measured to be in Z decays. These measurements indicate that the production of anti-deuterons is suppressed in collisions compared to that in pp and photoproduction collisions

SCHAEL S, BARATE R, BRUNELIE, RE R, DE BONIS I, DECAMP D, et al. (2006). Deuteron and anti-deuteron production in e+ e- collisions at the Z resonance. PHYSICS LETTERS. SECTION B, 639(3-4), 192-201 [10.1016/j.physletb.2006.06.043].