We present the first high-statistics study of the etaeta system over the mass range 1000-3000 MeV/c2. The experiment was performed at the Fermilab Antiproton Accumulator, and the data sample consists of six-photon final states produced in antiproton-proton annihilations at square-root s in the range 2950-3620 MeV. We find evidence for three states with masses 1488 +/- 10 MeV/c2, 1748 +/- 10 MeV/c2 and 2104 +/- 20 MeV/c2 respectively.

EVIDENCE FOR ETA-ETA RESONANCES IN ANTIPROTON PROTON ANNIHILATIONS AT 2950 LESS-THAN-ROOT-S-LESS-THAN 3620 MEV RID C-5223-2009

SOZZI, MARCO STANISLAO;
1993

Abstract

We present the first high-statistics study of the etaeta system over the mass range 1000-3000 MeV/c2. The experiment was performed at the Fermilab Antiproton Accumulator, and the data sample consists of six-photon final states produced in antiproton-proton annihilations at square-root s in the range 2950-3620 MeV. We find evidence for three states with masses 1488 +/- 10 MeV/c2, 1748 +/- 10 MeV/c2 and 2104 +/- 20 MeV/c2 respectively.
Armstrong, Ta; Bettoni, D; Bharadwaj, V; Biino, C; Borreani, G; Broemmelsiek, D; Buzzo, A; Calabrese, R; Ceccucci, A; Cester, R; Church, M; Dalpiaz, P; Dalpiaz, Pf; Dibenedetto, R; Dimitroyannis, D; Fabbri, Mg; Fast, J; Gianoli, A; Ginsburg, Cm; Gollwitzer, K; Hahn, A; Hasan, M; Hsueh, S; Lewis, R; Luppi, E; Macri, M; Majewska, Am; Mandelkern, M; Marchetto, F; Marinelli, M; Marques, J; Marsh, W; Martini, M; Masuzawa, M; Menichetti, E; Migliori, A; Mussa, R; Pallavicini, M; Palestini, S; Pastrone, N; Patrignani, C; Peoples, J; Pesando, L; Petrucci, F; Pia, Mg; Pordes, S; Rapidis, P; Ray, R; Reid, J; Rinaudo, G; Roccuzzo, B; Rosen, J; Santroni, A; Sarmiento, M; Savrie, M; Scalisi, A; Schultz, J; Seth, Kk; Smith, A; Smith, Ga; Sozzi, MARCO STANISLAO; Trokenheim, S; Weber, Mf; Werkema, S; Zhang, Y; Zhao, J; Zioulas, G.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11568/26451
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