Results 71 to 80 of about 3,431,191 (118)

Experiments on e+e−-line emission in HI collisions

Nuclear Physics A, 1995
Abstract We summarize the current status of e + e − -coincidence experiments performed by the EPOS and ORANGE collaborations at GSI.
Bär, R., Bałanda, A., Baumann, J., Berg, W., Bethge, K., Bokemeyer, H., Folger, H., Fröhlich, O., Ganz, R., Hartung, O., Samek, M., Salabura, P., Schön, W., Schwalm, D., Stiebing, K., Thee, P., Berdermann, E., Heine, F., Heinz, S., Joeres, O., Kienle, P., Koenig, I., Koenig, W., Kozhuharov, C., Leinberger, U., Schröter, A., Tsertos, Haralambos, Bär, R., Bałanda, A., Baumann, J., Berg, W., Bethge, K., Bokemeyer, H., Folger, H., Fröhlich, O., Ganz, R., Hartung, O., Samek, M., Salabura, P., Schön, W., Schwalm, D., Stiebing, K., Thee, P., Berdermann, E., Heine, F., Heinz, S., Joeres, O., Kienle, P., Koenig, I., Koenig, W., Kozhuharov, C., Leinberger, U., Schröter, A., Tsertos, Haralambos   +53 more
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Observation of the rare eta-> e+ e- e+ e- decay with the KLOE experiment

2011
We report the first observation of the rare eta -> e(+)e(-)e(+)e(-)(gamma) decay based on 1.7 fb(-1) collected by the KLOE experiment at the DA Phi NE phi-factory. The selection of the e(+)e(-)e(+)e(-) final state is fully inclusive of radiation. We have identified 362 +/- 29 events resulting in a branching ratio of (2.4 +/- 0.2(stat+bckg) +/- 0.1(syst)
F. Ambrosino, A. Antonelli, M. Antonelli, F. Archilli, I. Balwierz, G. Bencivenni, BINI, Cesare, C. Bloise, S. Bocchetta, F. Bossi, P. Branchini, G. Capon, T. Capussela, F. Ceradini, P. Ciambrone, E. Czerwinski, Erika De Lucia, DE SANTIS, ANTONIO, P. De Simone, DE ZORZI, Guido, A. Denig, DI DOMENICO, Antonio, C. Di Donato, B. Di Micco, M. Dreucci, G. Felici, FIORE, SALVATORE, FRANZINI, Paolo, C. Gatti, GAUZZI, Paolo, S. Giovannella, E. Graziani, M. Jacewicz, J. Lee Franzini, M. Martemianov, M. Martini, P. Massarotti, S. Meola, S. Miscetti, G. Morello, M. Moulson, S. Muller, M. Napolitano, F. Nguyen, M. Palutan, A. Passeri, PATERA, Vincenzo, I. Prado Longhi, P. Santangelo, B. Sciascia, M. Silarski, T. Spadaro, C. Taccini, L. Tortora, G. Venanzoni, R. Versaci, G. Xu, J. Zdebik, D. Babusci, D. Badoni, V. Bocci, A. Budano, S. A. Bulychjev, P. Campana, E. Dane, G. De Robertis, D. Domenici, O. Erriquez, G. Fanizzi, F. Gonnella, F. Happacher, B. Hoistad, IAROCCI, Enzo, T. Johansson, V. Kulikov, A. Kupsc, F. Loddo, M. Matsyuk, R. Messi, D. Moricciani, P. Moskal, A. Ranieri, I. Sarra, M. Schioppa, SCIUBBA, Adalberto, W. Wislicki, M. Wolke   +86 more
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