Measurement of inclusive γ and π0 spectra and a comparison of the neutral and charged components in hadronic events ine + e − annihilation at 34 GeV - Zeitschrift für Physik C Particles and Fields

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ID: 269534
1970
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Abstract
The photonic part of multihadronice + e − annihilation events has been analyzed at a c.m. energy of 34 GeV. The photonic energy fraction per event is determined to bef γ=0.251±0.003 (stat.) ±0.04 (syste.). The neutral and charged components of the events are analyzed separately revealing close similarity in thrust axis directions and momentum distributions in agreement with the hypothesis that most photons result from π0 decay. π0's are reconstructed separately and used to determine the inclusive cross section. Comparing these cross sections with lower energy data from SPEAR we find some indication for scaling violation.
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Authors Behrend, H. J.;Chen, Ch.;Fenner, H.;Field, J. H.;Schröder, V.;Sindt, H.;D'Agostini, G.;Apel, W. -D.;Banerjee, S.;Bodenkamp, J.;Chrobaczek, D.;Engler, J.;Flügge, G.;Fries, D. C.;Fues, W.;Gamerdinger, K.;Hopp, G.;Küster, H.;Müller, H.;Randoll, H.;Schmidt, G.;Schneider, H.;de Boer, W.;Buschhorn, G.;Grindhammer, G.;Grosse-Wiesmann, P.;Gunderson, B.;Kiesling, C.;Kotthaus, R.;Kruse, U.;Lierl, H.;Lücrs, D.;Meyer, T.;Oberlack, H.;Schacht, P.;Schachter, M. J.;Snyder, A.;Steiner, H.;Carnesecchi, G.;Colas, P.;Cordier, A.;Davier, M.;Fournier, D.;Grivaz, J. F.;Haissinski, J.;Journé, V.;Klarsfeld, A.;Laplanche, F.;Le Diberder, F.;Mallik, U.;Veillet, J. J.;George, R.;Goldberg, M.;Grossetête, B.;Hamon, O.;Kapusta, F.;Kovacs, F.;London, G.;Poggioli, L.;Rivoal, M.;Aleksan, R.;Bouchez, J.;Cozzika, G.;Ducros, Y.;Gaidot, A.;Jadach, S.;Lavagne, Y.;Pamela, J.;Pansart, J. P.;Pierre, F.;Behrend, H. J.;Chen, Ch.;Fenner, H.;Field, J. H.;Schröder, V.;Sindt, H.;D'Agostini, G.;Apel, W. -D.;Banerjee, S.;Bodenkamp, J.;Chrobaczek, D.;Engler, J.;Flügge, G.;Fries, D. C.;Fues, W.;Gamerdinger, K.;Hopp, G.;Küster, H.;Müller, H.;Randoll, H.;Schmidt, G.;Schneider, H.;de Boer, W.;Buschhorn, G.;Grindhammer, G.;Grosse-Wiesmann, P.;Gunderson, B.;Kiesling, C.;Kotthaus, R.;Kruse, U.;Lierl, H.;Lücrs, D.;Meyer, T.;Oberlack, H.;Schacht, P.;Schachter, M. J.;Snyder, A.;Steiner, H.;Carnesecchi, G.;Colas, P.;Cordier, A.;Davier, M.;Fournier, D.;Grivaz, J. F.;Haissinski, J.;Journé, V.;Klarsfeld, A.;Laplanche, F.;Le Diberder, F.;Mallik, U.;Veillet, J. J.;George, R.;Goldberg, M.;Grossetête, B.;Hamon, O.;Kapusta, F.;Kovacs, F.;London, G.;Poggioli, L.;Rivoal, M.;Aleksan, R.;Bouchez, J.;Cozzika, G.;Ducros, Y.;Gaidot, A.;Jadach, S.;Lavagne, Y.;Pamela, J.;Pansart, J. P.;Pierre, F.;
Journal Zeitschrift für Physik C Particles and Fields
Year 1970
DOI
doi:10.1007/BF01571817
URL
https://doi.org/10.1007/bf01571817
Keywords
string theory quantum field theory elementary particles nuclear physics heavy ions hadrons quantum field theories

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