Susan Cooper: Publications

Exclusive proton-antiproton production in two-photon collisions

Physics Letters B 108:1 (1982) 67-70

Authors:

R Brandelik, W Braunschweig, K Gather, FJ Kirschfink, K Lübelsmeyer, HU Martyn, G Peise, J Rimkus, HG Sander, D Schmitz, AS von Dratzig, D Trines, W Wallraff, H Boerner, HM Fischer, H Hartmann, E Hilger, W Hillen, G Knop, L Köpke, H Kolanoski, P Leu, R Wedemeyer, N Wermes, M Wollstadt, H Burkhardt, S Cooper, D Heyland, H Hultschig, P Joos, W Koch, U Kötz, H Kowalski, A Ladage, D Lüke, HL Lynch, P Mättig, KH Mess, D Notz, J Pyrlik, DR Quarrie, R Riethmüller, A Shapira, P Söding, BH Wiik, G Wolf, R Fohrmann, M Holder, HL Krasemann, G Poelz, O Römer, P Schmüser, I Al-Agil, R Beuselinck, DM Binnie, AJ Campbell, PJ Dornan, DA Garbutt, TD Jones, WG Jones, SL Lloyd, D Pandoulas, JK Sedgebeer, RA Stern, S Yarker, MG Bowler, IC Brock, RJ Cashmore, R Devenish, P Grossmann, J Illingworth, M Ogg, GL Salmon, J Thomas, TR Wyatt, C Youngman, KW Bell, B Foster, JC Hart, J Proudfoot, DH Saxon, PL Woodworth, E Duchovni, Y Eisenberg, U Karshon, G Mikenberg, D Revel, E Ronat, T Barklow, J Freeman, T Meyer, G Rudolph, E Wicklund, SL Wu, G Zobernig

Abstract:

Production of proton-antiproton pairs by two-photon scattering has been observed at the electron-position storage ring PETRA. A total of eight proton-antiproton pairs have been identified using the time-of-flight technique. We have measured a total cross section of 4.5 ± 0.8 nb in the photon-photon c.m. energy range 2.0-2.6 GeV. © 1982.

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ANGULAR-CORRELATIONS IN GAMMA-GAMMA-]RHO0-RHO0 NEAR THRESHOLD

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS 16:1 (1982) 13-25

Authors:

M ALTHOFF, W BRAUNSCHWEIG, K GATHER, FJ KIRSCHFINK, K LUBELSMEYER, HU MARTYN, G PEISE, J RIMKUS, HG SANDER, D SCHMITZ, H SIEBKE, D TRINES, W WALLRAFF, H BOERNER, HM FISCHER, H HARTMANN, E HILGER, W HILLEN, G KNOP, L KOPKE, H KOLANOSKI, R WEDEMEYER, N WERMES, M WOLLSTADT, H BURKHARDT, S COOPER, J FRANZKE, H HULTSCHIG, P JOOS, W KOCH, U KOTZ, H KOWALSKI, A LADAGE, B LOHR, D LUKE, P MATTIG, KH MESS, D NOTZ, J PYRLIK, DR QUARRIE, R RIETHMULLER, W SCHUTTE, P SODING, G WOLF, G YEKUTIELI, M DITTMAR, R FOHRMANN, HL KRASEMANN, P LEU, E LOHRMANN, D PANDOULAS, G POELZ, O ROMER, P SCHMUSER, BH WIIK, I ALAGIL, R BEUSELINCK, DM BINNIE, AJ CAMPBELL, PJ DORNAN, DA GARBUTT, TD JONES, WG JONES, SL LLOYD, J MCCARDLE, JK SEDGEBEER, KW BELL, MG BOWLER, IC BROCK, RJ CASHMORE, R CARNEGIE, PEL CLARKE, R DEVENISH, P GROSSMANN, J ILLINGWORTH, GL SALMON, J THOMAS, TR WYATT, C YOUNGMAN, B FOSTER, JC HART, J HARVEY, J PROUDFOOT, DH SAXON, PL WOODWORTH, D HEYLAND, M HOLDER, E DUCHOVNI, Y EISENBERG, U KARSHON, G MIKENBERG, D REVEL, E RONAT, A SHAPIRA, T BARKLOW, T MEYER, G RUDOLPH, H VENKATARAMANIA, E WICKLUND, SL WU, G ZOBERNIG

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CHARGE ASYMMETRY AND WEAK INTERACTION EFFECTS IN EPSILON+ EPSILON- -] MU+ MU- AND EPSILON+ EPSILON- -] TAU+ TAU-

PHYSICS LETTERS B 110:2 (1982) 173-180

Authors:

R BRANDELIK, W BRAUNSCHWEIG, K GATHER, FJ KIRSCHFINK, K LUBELSMEYER, HU MARTYN, G PEISE, J RIMKUS, HG SANDER, D SCHMITZ, D TRINES, W WALLRAFF, H BOERNER, HM FISCHER, H HARTMANN, E HILGER, W HILLEN, G KNOP, L KOPKE, H KOLANOSKI, B LOHR, R WEDEMEYER, N WERMES, M WOLLSTADT, H BURKHARDT, S COOPER, D HEYLAND, H HULTSCHIG, P JOOS, W KOCH, U KOTZ, H KOWALSKI, A LADAGE, D LUKE, HL LYNCH, P MATTIG, KH MESS, D NOTZ, J PYRLIK, DR QUARRIE, R RIETHMULLER, A SHAPIRA, P SODING, G WOLF, R FOHRMANN, M HOLDER, HL KRASEMANN, P LEU, D PANDOULAS, G POELZ, O ROMER, P SCHMUSER, BH WIIK, I ALAGIL, R BEUSELINCK, DM BINNIE, AJ CAMPBELL, PJ DORNAN, DA GARBUTT, TD JONES, WG JONES, SL LLOYD, JK SEDGBEER, RA STERN, S YARKER, KW BELL, MG BOWLER, IC BROCK, RJ CASHMORE, R CARNEGIE, R DEVENISH, P GROSSMANN, J ILLINGWORTH, M OGG, GL SALMON, J THOMAS, TR WYATT, C YOUNGMAN, B FOSTER, JC HART, J HARVEY, J PROUDFOOT, DH SAXON, PL WOODWORTH, E DUCHOVNI, Y EISENBERG, U KARSHON, G MIKENBERG, D REVEL, E RONAT, T BARKLOW, J FREEMAN, T MEYER, G RUDOLPH, E WICKLUND, SL WU, G ZOBERNIG

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PI-0 PRODUCTION BY E+E- ANNIHILATION AT 14 AND 34 GEV CM ENERGY

PHYSICS LETTERS B 108:1 (1982) 71-76

Authors:

R BRANDELIK, W BRAUNSCHWEIG, K GATHER, FJ KIRSCHFINK, K LUBELSMEYER, HU MARTYN, G PEISE, J RIMKUS, HG SANDER, D SCHMITZ, AS VONDRATZIG, D TRINES, W WALLRAFF, H BOERNER, HM FISCHER, H HARTMANN, E HILGER, W HILLEN, G KNOP, L KOPKE, H KOLANOSKI, P LEU, R WEDEMEYER, N WERMES, M WOLLSTADT, H BURKHARDT, S COOPER, D HEYLAND, H HULTSCHIG, P JOOS, W KOCH, U KOTZ, H KOWALSKI, A LADAGE, D LUKE, HL LYNCH, P MATTIG, KH MESS, D NOTZ, J PYRLIK, DR QUARRIE, R RIETHMULLER, A SHAPIRA, P SODING, BH WIIK, G WOLF, R FOHRMANN, M HOLDER, HL KRASEMANN, G POELZ, O ROMER, P SCHMUSER, I ALAGIL, R BEUSELINCK, DM BINNIE, AJ CAMPBELL, PJ DORNAN, DA GARBUTT, TD JONES, WG JONES, SL LLOYD, D PANDOULAS, JK SEDGBEER, RA STERN, S YARKER, MG BOWLER, IC BROCK, RJ CASHMORE, R DEVENISH, P GROSSMANN, J ILLINGWORTH, M OGG, GL SALMON, J THOMAS, TR WYATT, C YOUNGMAN, KW BELL, B FOSTER, JC HART, J PROUDFOOT, DH SAXON, PL WOODWORTH, E DUCHOVNI, Y EISENBERG, U KARSHON, G MIKENBERG, D REVEL, E RONAT, T BARKLOW, J FREEMAN, T MEYER, G RUDOLPH, E WICKLUND, SL WU, G ZOBERNIG

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High pT hadron production in photon-photon collisions

Physics Letters B 107:4 (1981) 290-296

Authors:

R Brandelik, W Braunschweig, K Gather, FJ Kirschfink, K Lübelsmeyer, HU Martyn, G Peise, J Rimkus, HG Sander, D Schmitz, A Schultz von Dratzig, D Trines, W Wallraff, H Boerner, HM Fischer, H Hartmann, E Hilger, W Hillen, G Knop, L Köpke, H Kolanoski, P Leu, R Wedemeyer, N Wermes, M Wollstadt, H Burkhardt, S Cooper, D Heyland, H Hultschig, P Joos, W Koch, U Kötz, H Kowalski, A Ladage, D Lüke, HL Lynch, P Mättig, KH Mess, D Notz, J Pyrlik, DR Quarrie, R Riethmüller, A Shapira, P Söding, BH Wiik, G Wolf, R Fohrmann, M Holder, HL Krasemann, G Poelz, O Römer, R Rüsch, P Schmüser, I Al-Agil, R Beuselinck, DM Binnie, AJ Campbell, PJ Dornan, DA Garbutt, TD Jones, WG Jones, SL Lloyd, D Pandoulas, JK Sedgbeer, RA Stern, S Yarker, MG Bowler, IC Brock, RJ Cashmore, R Devenish, P Grossmann, J Illingworth, M Ogg, GL Salmon, J Thomas, TR Wyatt, C Youngman, KW Bell, B Foster, JC Hart, J Proudfoot, DH Saxon, PL Woodwarth, E Duchovni, Y Eisenberg, U Karshon, G Mikenberg, D Revel, E Ronat, T Barklow, J Freeman, P Lecomte, T Meyer, G Rudolph, E Wicklund, Sau Lan Wu, G Zobernig

Abstract:

We have studied the properties of hadron production in photon-photon scattering with tagged photons at the e+e- storage ring PETRA. A tail in the pT distribution of particles consistent with pT-4 has been observed. We show that this tail cannot be due to the hadronic part of the photon. Selected events with high pT particles are found to be consistent with a two-jet structure as expected from a point-like coupling of the photons to quarks. The lowest-order cross section predicted for γγ → qq, σ = 3 Σ eq4 · σγγ → μμ, is approached from above by the data at large transverse momenta. © 1981.

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Susan Cooper

Sub department

Exclusive proton-antiproton production in two-photon collisions

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Abstract:

ANGULAR-CORRELATIONS IN GAMMA-GAMMA-]RHO0-RHO0 NEAR THRESHOLD

Authors:

CHARGE ASYMMETRY AND WEAK INTERACTION EFFECTS IN EPSILON+ EPSILON- -] MU+ MU- AND EPSILON+ EPSILON- -] TAU+ TAU-

Authors:

PI-0 PRODUCTION BY E+E- ANNIHILATION AT 14 AND 34 GEV CM ENERGY

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High pT hadron production in photon-photon collisions

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