Measurement of deep inelastic Compton scattering of high energy photons

Measurement of deep inelastic Compton scattering of high energy photons

We present the first results on inclusive photo-production of prompt photons at high transverse momenta. The data were taken in an open spectrometer at CERN using a high intensity photon beam energy between 50 and 150 GeV. After subtracting the yield of photons from indirect sources, a clear excess...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Physics letters. B 1985-01, Vol.152 (5), p.419-427
Hauptverfasser: Astbury, P., Augé, E., Barate, R., Bareyre, P., Benkheiri, P., Bloch, D., Bonamy, P., Borgeaud, P., Bouquet, B., Brom, J.M., Brunet, J.M., Burmeister, H., Burtchell, M., Costa Ramos, S., Couchot, F., D'Almagne, B., David, M., De Bellefon, A., De Lesquens, A., Dello Russo, P., Duane, A., Engel, J.P., Engelen, J., Ferrer, A., Filippas, T.A., Fokitis, E., Frenkiel, P., Gazis, E.N., Giomataris, J., Gorski, M., Gregory, P., Guryn, W., Guyonnet, J.L., Hofmokl, T., Jacholkowska, A., Katsoufis, E.C., Kent, J., Kyberd, P., Lefievre, B., Legendre, R., Lemoigne, Y., Maeshima, K., Marshall, T., McEwen, J.G., Morris, J., Mouzourakis, P., Namjoshi, R., Nandi, B., Noon, Ph, Orenstein, S., Papadopoulou, T., Pattison, J.B.M., Petroff, P., Poutot, D., Rancoita, P.G., Richard, F., Roudeau, P., Rouge, A., Schaeffer, M., Seez, Ch, Shooshtari, H., Siotis, I., Six, J., Trakkas, Ch, Treille, D., Tristram, G., Van Rossum, L.V., Villet, G., Virdee, T.S., Volte, A., Websdale, D.M., West, J., Winter, M., Wojcik, W., Wormser, G., Wuthrick, J.P., Zolnierowski, Y.
Format: Artikel
Sprache:eng
Schlagworte:
High Energy Physics - Experiment
Physics
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:We present the first results on inclusive photo-production of prompt photons at high transverse momenta. The data were taken in an open spectrometer at CERN using a high intensity photon beam energy between 50 and 150 GeV. After subtracting the yield of photons from indirect sources, a clear excess is observed for transverse momenta above 2.5 GeV c Deep inelastic Compton scattering with appropriate QCD corrections account for this excess. The data disfavour the gauge integer charge quark models so far proposed.
ISSN:0370-2693
1873-2445
DOI:10.1016/0370-2693(85)90521-0