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AN IMPROVED MEASUREMENT OF ELECTROWEAK COUPLINGS FROM E+E--]E+E- AND E+E--]MU+MU-

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS 22:1 (1984) 13-21

Authors:

M ALTHOFF, W BRAUNSCHWEIG, FJ KIRSCHFINK, K LUBELSMEYER, HU MARTYN, G PEISE, J RIMKUS, P ROSSKAMP, HG SANDER, D SCHMITZ, H SIEBKE, W WALLRAFF, HM FISCHER, H HARTMANN, W HILLEN, A JOCKSCH, G KNOP, L KOPKE, H KOLANOSKI, H KUCK, R WEDEMEYER, N WERMES, M WOLLSTADT, H BURKHARDT, Y EISENBERG, K GATHER, H HULTSCHIG, P JOOS, W KOCH, U KOTZ, H KOWALSKI, A LADAGE, B LOHR, D LUKE, P MATTIG, D NOTZ, J PYRLIK, DR QUARRIE, M RUSHTON, W SCHUTTE, D TRINES, G WOLF, C XIAO, R FOHRMANN, E HILGER, T KRACHT, HL KRASEMANN, P LEU, E LOHRMANN, D PANDOULAS, G POELZ, BH WIIK, R BEUSELINCK, DM BINNIE, AJ CAMPBELL, PJ DORNAN, B FOSTER, DA GARBUTT, C JENKINS, TD JONES, WG JONES, J MCCARDLE, JK SEDGBEER, WAT WANABDULLAH, KW BELL, MG BOWLER, IC BROCK, RJ CASHMORE, PEL CLARKE, R DEVENISH, P GROSSMANN, SL LLYOD, GL SALMON, J THOMAS, TR WYATT, C YOUNGMAN, JC HART, J HARVEY, DK HASELL, J PROUDFOOT, DH SAXON, PL WOODWORTH, F BARREIRO, M DITTMAR, M HOLDER, B NEUMANN, E DUCHOVNI, U KARSHON, G MIKENBERG, R MIR, D REVEL, E RONAT, A SHAPIRA, G YEKUTIELI, T BARKLOW, A CALDWELL, M CHERNEY, JM IZEN, M MERMIKIDES, G RUDOLPH, D STROM, H VENKATARAMANIA, E WICKLUND, SL WU, G ZOBERNIG
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DETERMINATION OF ALPHA-S IN 1ST AND 2ND ORDER QCD FROM E+E- ANNIHILATION INTO HADRONS

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS 26:2 (1984) 157-174

Authors:

M ALTHOFF, W BRAUNSCHWEIG, FJ KIRSCHFINK, K LUBELSMEYER, HU MARTYN, P ROSSKAMP, HG SANDER, D SCHMITZ, H SIEBKE, W WALLRAFF, J EISENMANN, HM FISCHER, H HARTMANN, A JOCKSCH, G KNOP, L KOPKE, H KOLANOSKI, H KUCK, V MERTENS, R WEDEMEYER, A ESKREYS, K GATHER, H HULTSCHIG, P JOOS, U KOTZ, H KOWALSKI, A LADAGE, B LOHR, D LUKE, P MATTIG, D NOTZ, RJ NOWAK, J PYRLIK, M RUSHTON, W SCHUTTE, D TRINES, T TYMIENIECKA, G WOLF, G YEKUTIELI, C XIAO, R FOHRMANN, E HILGER, T KRACHT, HL KRASEMANN, P LEU, E LOHRMANN, D PANDOULAS, G POELZ, KU POSNECKER, BH WIIK, R BEUSELINCK, DM BINNIE, PJ DORNAN, B FOSTER, DA GARBUTT, C JENKINS, TD JONES, WG JONES, J MCCARDLE, KJ SEDGBEER, J THOMAS, WAT WANABDULLAH, KW BELL, MG BOWLER, P BULL, RJ CASHMORE, PEL CLARKE, R DEVENISH, P GROSSMANN, CM HAWKES, SL LLOYD, C YOUNGMAN, GE FORDEN, JC HART, J HARVEY, DK HASELL, DH SAXON, F BARREIRO, S BRANDT, M DITTMAR, M HOLDER, G KREUTZ, B NEUMANN, E DUCHOVNI, Y EISENBERG, U KARSHON, G MIKENBERG, R MIR, D REVEL, E RONAT, A SHAPIRA, M WINIK, G BARANKO, T BARKLOW, A CALDWELL, M CHERNEY, JM IZEN, M MERMIKIDES, G RUDOLPH, D STROM, M TAKASHIMA, H VENKATARAMANIA, E WICKLUND, SL WU, G ZOBERNIG
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JET PRODUCTION AND FRAGMENTATION IN E+E- ANNIHILATION AT 12-43 GEV

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS 22:4 (1984) 307-340

Authors:

M ALTHOFF, W BRAUNSCHWEIG, FJ KIRSCHFINK, K LUBELSMEYER, HU MARTYN, G PEISE, J RIMKUS, P ROSSKAMP, HG SANDER, D SCHMITZ, H SIEBKE, W WALLRAFF, HM FISCHER, H HARTMANN, W HILLEN, A JOKSCH, G KNOP, L KOPKE, H KOLANOSKI, H KUCK, V MERTENS, R WEDEMEYER, N WERMES, M WOLLSTADT, Y EISENBERG, K GATHER, H HULTSCHIG, P JOOS, W KOCH, U KOTZ, H KOWALSKI, A LADAGE, B LOHR, D LUKE, P MATTIG, D NOTZ, RJ NOWAK, J PYRLIK, DR QUARRIE, M RUSHTON, W SCHUTTE, D TRINES, G WOLF, C XIAO, R FOHRMANN, E HILGER, T KRACHT, HL KRASEMANN, P LEU, E LOHRMANN, D PANDOULAS, G POELZ, KU POSNECKER, BH WIIK, R BEUSELINCK, DM BINNIE, AJ CAMPBELL, PJ DORNAN, B FOSTER, DA GARBUTT, C JENKINS, TD JONES, WG JONES, J MCCARDLE, JK SEDGBEER, J THOMAS, WAT WANABDULLAH, KW BELL, MG BOWLER, P BULL, RJ CASHMORE, PEL CLARKE, R DEVENISH, P GROSSMANN, CM HAWKES, SL LLOYD, GL SALMON, TR WYATT, C YOUNGMAN, GE FORDEN, JC HART, J HARVEY, DK HASELL, J PROUDFOOT, DH SAXON, PL WOODWORTH, F BARREIRO, M DITTMAR, M HOLDER, B NEUMANN, E DUCHOVNI, U KARSHON, G MIKENBERG, R MIR, D REVEL, E RONAT, A SHAPIRA, G YEKUTIELI, G BARANKO, T BARKLOW, A CALDWELL, M CHERNEY, JM IZEN, M MERMIKIDES, G RUDOLPH, D STROM, H VENKATARAMANIA, E WICKLUND, SL WU, G ZOBERNIG
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OBSERVATION OF THE REACTION GAMMA-GAMMA-]PPBAR-PI+PI-

PHYSICS LETTERS B 142:1-2 (1984) 135-140

Authors:

M ALTHOFF, W BRAUNSCHWEIG, FJ KIRSCHFINK, K LUBELSMEYER, HU MARTYN, J RIMKUS, P ROSSKAMP, HG SANDER, D SCHMITZ, H SIEBKE, W WALLRAFF, HM FISCHER, H HARTMANN, A JOCKSCH, G KNOP, L KOPKE, H KOLANOSKI, H KUCK, V MERTENS, R WEDEMEYER, M WOLLSTADT, Y EISENBERG, A ESKREYS, K GATHER, H HULTSCHIG, P JOOS, U KOTZ, H KOWALSKI, A LADAGE, B LOHR, D LUKE, P MATTIG, D NOTZ, RJ NOWAK, J PYRLIK, M RUSHTON, W SCHUTTE, D TRINES, T TYMIENIECKA, G WOLF, C XIAO, R FOHRMANN, E HILGER, T KRACHT, HL KRASEMANN, P LEU, E LOHRMANN, D PANDOULAS, G POELZ, KU POSNECKER, BH WIIK, R BEUSELINCK, DM BINNIE, AJ CAMPBELL, PJ DORNAN, B FOSTER, DA GARBUTT, C JENKINS, TD JONES, WG JONES, J MCCARDLE, JK SEDGBEER, J THOMAS, WATW ABDULLAH, KW BELL, MG BOWLER, P BULL, RJ CASHMORE, PEL CLARKE, R DEVENISH, P GROSSMANN, CM HAWKES, SL LLOYD, GL SALMON, C YOUNGMAN, GE FORDEN, JC HART, J HARVEY, DK HASELL, J PROUDFOOT, DH SAXON, F BARREIRO, M DITTMAR, M HOLDER, G KREUTZ, B NEUMANN, E DUCHOVNI, U KARSHON, G MIKENBERG, R MIR, D REVEL, E RONAT, A SHAPIRA, G YEKUTIELI, G BARANKO, T BARKLOW, A CALDWELL, M CHERNEY, JM IZEN, M MERMIKIDES, G RUDOLPH, D STROM, M TAKASHIMA, H VENKATARAMANIA, E WICKLUND, SL WU, G ZOBERNIG
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Differential cross sections for γγ→p-p in the CM energy range from 2.0 to 3.1 GeV

Physics Letters B 130:6 (1983) 449-453

Authors:

M Althoff, W Braunschweig, K Gather, FJ Kirschfink, K Lübelsmeyer, HU Martyn, G Peise, J Rimkus, P Rosskamp, HG Sander, D Schmitz, H Siebke, W Wallraff, HM Fischer, H Hartmann, W Hillen, A Jocksch, G Knop, L Köpke, H Kolanoski, H Kück, R Wedemeyer, N Wermes, M Wollstadt, S Cooper, Y Eisenberg, H Hultschig, P Joos, W Koch, U Kötz, H Kowalski, A Ladage, B Löhr, D Lüke, P Mättig, KH Mess, D Notz, J Pyrlik, DR Quarrie, M Rushton, W Schütte, D Trines, G Wolf, C Xiao, R Fohrmann, E Hilger, T Kracht, HL Krasemann, P Leu, E Lohrmann, D Pandoulas, G Poelz, BH Wiik, I Al-Agil, R Beuselinck, DM Binnie, AJ Campbell, PJ Dornan, B Foster, DA Garbutt, TD Jones, WG Jones, J McCardle, JK Sedgbeer, KW Bell, MG Bowler, IC Brock, RJ Cashmore, PEL Clarke, R Devenish, P Grossmann, SL Lloyd, GL Salmon, J Thomas, TR Wyatt, C Youngman, JC Hart, J Harvey, J Proudfoot, DH Saxon, PL Woodworth, F Barreiro, M Dittmar, D Heyland, M Holder, B Neumann, E Duchovni, U Karshon, G Mikenberg, R Mir, D Revel, E Ronat, A Shapira, G Yekutieli, T Barklow, A Caldwell, M Cherney, JM Izen, M Mermikides, G Rudolph

Abstract:

Exclusive production of proton-antiproton pairs by two photon scattering at CM energies between 2.0 GeV and 3.1 GeV has been measured with the TASSO detector at the e+e- storage ring PETRA. The angular distribution is flat within the accepted CM angular range |cos Θ*|≤0.7. The integrated cross section (|cos Θ*|≤0.6) drops from about 4 nb at 2 GeV to less than 0.5 nb above 3 GeV. For the two-photon production of the ηc(2984) and its subsequent decay into proton-antiproton the upper limit Γ(ηc→γγ)·B(η c→pp)<0.32 keV (95% CL) is found. © 1983.
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