Details

Autor(en) / Beteiligte

• Berger, Ch
• Lackas, W.
• Raupach, F.
• Wagner, W.
• Alexander, G.
• Criegee, L.
• Dehne, H.C.
• Derikum, K.
• Devenish, R.
• Flügge, G.
• Franke, G.
• Gerke, Ch
• Hackmack, E.
• Harms, P.
• Horlitz, G.
• Kahl, Th
• Knies, G.
• Lehmann, E.
• Neumann, B.
• Thompson, R.L.
• Timm, U.
• Waloschek, P.
• Winter, G.G.
• Wolff, S.
• Zimmermann, W.
• Achterberg, O.
• Blobel, V.
• Boesten, L.
• Daumann, H.
• Garfinkel, A.F.
• Kapitza, H.
• Koppitz, B.
• Lührsen, W.
• Maschuw, R.
• Spitzer, H.
• van Staa, R.
• Wetjen, G.
• Bäcker, A.
• Bürger, J.
• Grupen, C.
• Meyer, H.J.
• Zech, G.
• Daum, H.J.
• Meyer, H.
• Meyer, O.
• Rössler, M.
• Wacker, K.

Titel

Observation of a narrow resonance formed in e +e − annihilation at 9.46 GeV

Ist Teil von

• Physics letters. B, 1978-01, Vol.76 (2), p.243-245

Ort / Verlag

Elsevier B.V

Erscheinungsjahr

1978

Quelle

Elsevier ScienceDirect Journals

Beschreibungen/Notizen

• An experiment using the PLUTO detector has observed the formation of a narrow, high mass, resonance in e +e − annihilations at the DORIS storage ring. The mass is determined to be 9.46±0.01 GeV which is consistent with that of the Upsilon. The gaussian width σ is observed as 8±1 MeV and is equal to the DORIS energy resolution. This suggests that the resonance is a bound state of a new heavy quark-antiquark pair. An electronic width Γ ee=1.3±0.4 keV was obtained. In standard theoretical models, this favors a quark charge assignment of 1 3 .