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Test of a prototype of the ZEUS backing calorimeter

Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment Elsevier 300:3 (1991) 480-492

Authors:

I Kudla, RJ Nowak, R Walczak, AF Zarnecki, H Abramowicz
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Production of charmed mesons in γγ interactions

Zeitschrift für Physik C Particles and Fields Springer Nature 47:4 (1990) 499-504

Authors:

TASSO Collaboration, W Braunschweig, R Gerhards, FJ Kirschfink, H-U Martyn, B Bock, HM Fischer, H Hartmann, J Hartmann, E Hilger, A Jocksch, R Wedemeyer, B Foster, AJ Martin, E Bernardi, J Chwastowski, A Eskreys, K Genser, H Hultschig, P Joos, H Kowalski, A Ladage, B Löhl, D Lüke, D Notz, JM Pawlak, K-U Pösnecker, E Ros, D Trines, R Walczak, G Wolf, H Kolanoski, T Kracht, J Krüger, E Lohrmann, G Poelz, W Zeuner, J Hassard, J Shulman, D Su, IR Tomalin, F Barreiro, A Leites, J del Peso, JC Hart, DH Saxon, S Brandt, M Holder, E Duchovni, Y Eisenberg, D Hochman, U Karshon, L Lyons, A Montag, D Revel, EE Ronat, N Wainer, D Muller, S Ritz, D Strom, M Takashima, Sau Lan Wu, G Zobernig
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Measurement of the asymmetry ofb quark production ine+e− annihilation at

Zeitschrift für Physik C Particles and Fields Springer Nature 48:3 (1990) 433-444

Authors:

TASSO Collaboration, W Braunschweig, R Gerhards, FJ Kirschfink, H-U Martyn, HM Fischer, H Hartmann, J Hartmann, E Hilger, A Jocksch, R Wedemeyer, B Foster, AJ Martin, E Bernardi, J Chwastowski, A Eskreys, K Genser, H Hultschig, P Joos, H Kowalski, A Ladage, B Löhr, D Lüke, P Mättig, D Notz, JM Pawlak, K-U Pösnecker, E Ros, D Trines, R Walczak, G Wolf, H Kolanoski, J Krüger, E Lohrmann, G Poelz, W Zeuner, D Binnie, J Hassard, J Shulman, D Su, I Tomalin, A Watson, F Barreiro, G Cases, L Hervas, J del Peso, MG Bowler, PN Burrows, RJ Cashmore, ME Veitch, JC Hart, DH Saxon, S Brandt, M Holder, Y Eisenberg, U Karshon, A Montag, D Revel, E Ronat, N Wainer, A Caldwell, D Muller, S Ritz, D Strom, M Takashima, Sau Lan Wu, G Zobernig
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Observation of laser oscillation in nitric oxide at 218 nm.

Opt Lett 15:8 (1990) 437-439

Authors:

SM Hooker, CE Webb

Abstract:

We have recently proposed a scheme to produce coherent radiation at eight or more wavelengths between 158 and 242 nm by optically pumping a high-lying electronic level of nitric oxide. We report here the successful operation of this scheme to produce laser oscillation at 218 nm. The possibility of using this scheme to produce laser oscillation at other wavelengths is discussed.
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Experimental study of the orientation of three-jet events in e+e- annihilation at PETRA

Zeitschrift für Physik C Particles and Fields 47:2 (1990) 181-186

Authors:

W Braunschweig, R Gerhards, FJ Kirschfink, HU Martyn, HM Fischer, H Hartmann, J Hartmann, E Hilger, A Jocksch, R Wedemeyer, B Foster, AJ Martin, F Barreiro, E Bernardi, J Chwastowski, A Eskreys, K Gather, K Genser, H Hultschig, P Joos, J Körner, H Kowalski, A Ladage, B Löhr, D Lüke, P Mättig, D Notz, JM Pawlak, KU Pösnecker, E Ros, D Trines, R Walczak, G Wolf, H Kolanoski, T Kracht, J Krüger, E Lohrmann, G Poelz, W Zeuner, J Hassard, J Shulman, D Su, I Tomalin, A Watson, G Cases, L Hervas, A Leites, J del Peso, MG Bowler, PN Burrows, R Cashmore, ME Veitch, JC Hart, DH Saxon, S Brandt, M Holder, L Labarga, Y Eisenberg, U Karshon, G Mikenberg, A Montag, D Revel, E Ronat, A Shapira, N Wainer, G Yekutieli, A Caldwell, D Muller, S Ritz, D Strom, M Takashima, SL Wu, G Zobernig

Abstract:

The full TASSO data have been used to study the orientation of three-jet events in e+e- annihilation. The polar angle distributions of the normal to the three-jet plane as well as the polar angle distribution of the most energetic jet have been measured as a function of the thrust cut-off used to select the three-jet sample. The data corrected for radiation and detector effects are compared to QCD predictions and fair agreement is found. As a consistency check we also present measurements of the azimuthal correlations between the lepton and hadron planes. A significant azimuthal dependence is found, consistent again with the QCD predictions. © 1990 Springer-Verlag.
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