Published July 1983
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Inclusive γ and π0 production in e+e- annihilation at 14, 22, and 34 GeV c.m. energy
Creators
- D'Agostini, G.1, 2
- Apel, W.D.1, 2
- Engler, J.1, 2
- Fluegge, G.1, 2
- Fries, D.C.1, 2
- Fues, W.1, 2
- Gamerdinger, K.1, 2
- Hopp, G.1, 2
- Kuester, H.1, 2
- Mueller, H.1, 2
- Randoll, H.1, 2
- Schmidt, G.1, 2
- Schneider, H.1, 2
- De Boer, W.3
- Buschhorn, G.3
- Grindhammer, G.3
- Grosse-Wiesmann, P.3
- Gunderson, B.3
- Kiesling, C.3
- Kotthaus, R.3
- Kruse, U.3
- Lierl, H.3
- Lueers, D.3
- Oberlack, H.3
- Schacht, P.3
- Colas, P.4
- Cordier, A.4
- Davier, M.4
- Fournier, D.4
- Grivaz, J.F.4
- Haissinski, J.4
- Journe, V.4
- Laplanche, F.4
- Le Diberder, F.4
- Mallik, U.4
- Veillet, J.J.4
- Field, J.H.5
- George, R.5
- Goldberg, M.5
- Grossetete, B.5
- Hamon, O.5
- Kapusta, F.5
- Kovacs, F.5
- London, G.5
- Poggioli, L.5
- Rivoal, M.5
- Aleksan, R.6
- Bouchez, J.6
- Carnesecchi, G.6
- Cozzika, G.6
- Ducros, Y.6
- Gaidot, A.6
- Lavagne, Y.6
- Pamela, J.6
- Pansart, J.P.6
- Pierre, F.6
- Behrend, H.J.
- Fenner, H.
- Schachter, M.J.
- Schroeder, V.
- Sindt, H.
- Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany, F.R.)
- CELLO Collaboration
- 1. Karlsruhe Univ. (T.H.) (Germany, F.R.)
- 2. Kernforschungszentrum Karlsruhe G.m.b.H. (Germany, F.R.)
- 3. Max-Planck-Institut fuer Physik und Astrophysik, Muenchen (Germany, F.R.)
- 4. Paris-11 Univ., 91 - Orsay (France). Lab. de l'Accelerateur Lineaire
- 5. Paris-11 Univ., 91 - Orsay (France). Lab. de Physique Nucleaire et Hautes Energies
- 6. CEA Centre d'Etudes Nucleaires de Saclay, 91 - Gif-sur-Yvette (France)
Description
We have measured the scale invariant inclusive photon and π0 cross sections at W = 14, 22 and 34 GeV. A comparison with π+- data shows no significant difference between neutral and charged pion production. Comparing the integrated cross sections in the x range 0.15 < x < 1.0 we observe a considerable decrease from 14 GeV to 34 GeV with a statistical significance of 1.5 standard deviations. This is compatible with the expectations for scaling violations from QCD. (orig.)
Availability note (English)
MF available from INIS under the Report Number.
Files
Additional details
Publishing Information
- Imprint Pagination
- 20 p.
- Report number
- DESY--83-066
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 15004826
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- ANNIHILATION; DIFFERENTIAL CROSS SECTIONS; EFFECTIVE MASS; ELECTRON-POSITRON INTERACTIONS; EXPERIMENTAL DATA; GEV RANGE 10-100; INCLUSIVE INTERACTIONS; INTEGRAL CROSS SECTIONS; MASS SPECTRA; PARTICLE PRODUCTION; PHOTONS; PIONS NEUTRAL; SCALE INVARIANCE
- Descriptors DEC
- BOSONS; CROSS SECTIONS; DATA; ELEMENTARY PARTICLES; ENERGY RANGE; GEV RANGE; HADRONS; INFORMATION; INTERACTIONS; INVARIANCE PRINCIPLES; LEPTON-LEPTON INTERACTIONS; MASS; MASSLESS PARTICLES; MESONS; NUMERICAL DATA; PARTICLE INTERACTIONS; PIONS; PSEUDOSCALAR MESONS; SPECTRA
Optional Information
- Collaborations
- CELLO Collaboration.