Study of antideuteron production in $e^+ e^−$ annihilation at 10 GeV centre-of-mass energy
- Albrecht, H.
- Gläser, R.
- Schulz, H. D.
- Sefkow, F.
- Wurth, R.
- Appuhn, R. D.
- Drescher, A.
- Hast, C.
- Herrera, G.
- Kolanoski, H.
- Lange, A.
- Lindner, A.
- Harder, G.
- Mankel, R.
- Scheck, H.
- Schweda, G.
- Spaan, B.
- Walther, A.
- Wegener, D.
- Paulini, M. G.
- Reim, K.
- Volland, U.
- Wegener, H.
- Krüger, A.
- Funk, W.
- Stiewe, J.
- Werner, S.
- Ball, S.
- Gabriel, J. C.
- Geyer, C.
- Hölscher, A.
- Hofmann, W.
- Holzer, B.
- Khan, S.
- Nippe, A.
- Spengler, J.
- Charlesworth, C. E. K.
- Edwards, K. W.
- Frisken, W. R.
- Kapitza, H.
- Krieger, P.
- Kutschke, R.
- Macfarlane, D. B.
- McLean, K. W.
- Orr, R. S.
- Oest, T.
- Parsons, J. A.
- Patel, P. M.
- Prentice, J. D.
- Seidel, S. C.
- Swain, J. D.
- Tsipolitis, G.
- Yoon, T.-S.
- Davis, R.
- Ruf, T.
- Schael, S.
- Reidenbach, M.
- Schubert, K. R.
- Strahl, K.
- Waldi, R.
- Weseler, S.
- Boštjančič, B.
- Kernel, G.
- Križan, P.
- Križnič, E.
- Pleško, M.
- Cronström, H. I.
- Schäfer, M.
- Jönsson, L.
- Nilsson, A. W.
- Babaev, A.
- Danilov, M.
- Fominykh, B.
- Golutvin, A.
- Gorelov, I.
- Lubimov, V.
- Rostovtsev, A.
- Semenov, A.
- Schmidt-Parzefall, W.
- Semenov, S.
- Shevchenko, V.
- Soloshenko, V.
- Tchistilin, V.
- Tichomirov, I.
- Zaitsev, Yu.
- Childers, R.
- Darden, C. W.
- ARGUS Collaboration
- Schröder, H.
DOIAbstract
We report a measurement of the production of antideuterons d in $e^+e^−$ annihilation at centre-of-mass energies around 10 GeV using the ARGUS detector at the DORIS II storage ring. We observe an enhancement of d production in direct hadronic ϒ(1S) and ϒ(2S) resonance decays. From 21 events width a d candidate the inclusive cross section 1σdirhad · dσdp and the production rate of antideuterons are determined. A production rate of (6.0±2.0±0.6) × 10-5d per direct hadronic ϒ decay and a 90% CL upper limit of 1.7 × 10−5d per e+e−→qq continuum event are obtained. These results are related to antiproton production through a simple model
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