Susan Cooper: Publications

Electroweak coupling constants in the leptonic reactions e⁺e^- → e⁺e^- and e⁺e^- → μ⁺μ^- and search for scalar leptons

Physics Letters B 117:5 (1982) 365-371

Authors:

R Brandelik, W Braunschweig, K Gather, FJ Kirschfink, K Lübelsmeyer, 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 Köpke, H Kolanoski, R Wedemeyer, N Wermes, M Wollstadt, H Burkhardt, S Cooper, J Franzke, D Heyland, H Hultschig, P Joos, W Koch, U Kötz, H Kowalski, A Ladage, B Löhr, D Lüke, HL Lynch, P Mättig, KH Mess, D Notz, J Pyrlik, DR Quarrie, R Riethmüller, W Schütte, P Söding, G Wolf, R Fohrmann, HL Krasemann, P Leu, E Lohrmann, D Pandoulas, G Poelz, O Römer, P Schmüser, BH Wiik, I Al-Agil, R Beuselinck, DM Binnie, AJ Campbell, PJ Dornan, DA Garbutt, TD Jones, WG Jones, SL Lloyd, JK Sedgbeer, KW Bell, MG Bowler, IC Brock, RJ Cashmore, R Carnegie, PEL Clarke, 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, M Holder, E Duchovni, Y Eisenberg, U Karshon, G Mikenberg, D Revel, E Ronat, A Shapira, T Barklow, T Meyer, G Rudolph, E Wicklund, Sau Lan Wu, G Zobernig

Abstract:

A high statistics experiment was performed on Bhabha scattering at energies between 14 and 34 GeV. Good agreement with QED was observed. The combined data on Bhabha scattering and μ pair production were found to agree with the standard theory of electroweak interaction giving sin2 θ = 0.27-0.07+0.06. Assuming for the Z0 mass a value of 90 GeV the leptonic weak coupling constants were determined to gV2 = -0.04 ± 0.06 and gA2 = 0.35 ± 0.09. A search for scalar leptons sets lower limits on the mass of scalar electrons ofMse > 16.6 GeV and of scalar muons of Msμ > 16.4 GeV. © 1982.

Inclusive ϱ0 production in e+e- annihilation at high energy

Physics Letters B 117:1-2 (1982) 135-140

Authors:

R Brandelik, W Braunschweig, K Gather, FJ Kirschfink, K Lübelsmeyer, 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 Köpke, H Kolanoski, R Wedemeyer, N Wermes, M Wollstadt, H Burkhardt, S Cooper, J Franzke, D Heyland, H Hultschig, P Joos, W Koch, U Kötz, H Kowalski, A Ladage, B Löhr, D Lüke, HL Lynch, P Mättig, KH Mess, D Notz, J Pyrlik, DR Quarrie, R Riethmüller, W Schütte, P Söding, G Wolf, M Dittmar, R Fohrmann, HL Krasemann, P Leu, E Lohrmann, D Pandoulas, G Poelz, O Römer, P Schmüser, BH Wiik, I Al-agil, R Beuselinck, DM Binnie, AJ Campbell, PJ Dornan, DA Garbutt, TD Jones, WG Jones, SL Lloyd, JK Sedgbeer, R Stern, 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, M Holder, E Duchovni, Y Eisenberg, U Karshon, G Mikenberg, D Revel, E Ronat, A Shapira, T Barklow, T Meyer, G Rudolph, E Wicklund, SL Wu, G Zobernig

Abstract:

We have observed ρ{variant}⁰ production in e⁺e^- annihilation to hadrons at high energies. The differential cross section at a centre of mass energy W, of 34 GeV, is presented. In the range 0.2< x < 0.7, we measure 0.33 ± 0.06 (stat.) ± 0.07 (syst.), 0.22 ± 0.06 ± 0.05 and 0.22 ± 0.02 ± 0.05 ρ{variant}⁰/event at W = 14, 22 and 34 GeV respectively. © 1982.

Scale breaking in inclusive charged particle production by e⁺e^- annihilation

Physics Letters B 114:1 (1982) 65-70

Authors:

R Brandelik, W Braunschweig, K Gather, FJ Kirschfink, F Lübelsmeyer, 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 Köpke, H Kolanoski, B Löhr, R Wedemeyer, N Wermes, M Wollstadt, H Burkhardt, S Cooper, J Franzke, D Heyland, H Hultschig, P Joos, W Koch, U Kötz, H Kowalski, A Ladage, E Lohrmann, D Lüke, HL Lynch, P Mättig, KH Mess, D Notz, J Pyrlik, DR Quarrie, R Riethmüller, W Schütte, P Söding, G Wolf, R Fohrmann, HL Krasemann, P Leu, D Pandoulas, G Poelz, O Römer, P Schmüser, BH Wiik, I Al-Agil, 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, M Holder, E Duchovni, Y Eisenberg, U Karshon, G Mikenberg, D Revel, E Ronat, A Shapira, T Barklow, J Freeman, T Meyer, G Rudolph, E Wicklund, Sau Lan Wu, G Zobernig

Abstract:

The scale cross section sdσ dxp for inclusive charged-particle production in e+e- annihilation has been studied for c.m. energies W between 12.0 and 36.7 GeV. Scale breaking is observed. For xp>0.2 the cross section decreases by ≈20% when W increases from 14 to 35 GeV. The production angular distribution was used to separate the longitudinal and transverse cross-section contributions and to determine the ratio of the structure functions mW1 and vW2. © 1982.

A measurement of σtot(e⁺e^- → hadrons) for cm energies between 12.0 and 36.7 GeV

Physics Letters B 113:6 (1982) 499-508

Authors:

R Brandelik, W Braunschweig, K Gather, FJ Kirschfink, K Lübelsmeyer, 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 Köpke, H Kolanoski, B Löhr, R Wedemeyer, N Wermes, M Wollstadt, H Burkhardt, S Cooper, J Franzke, 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, W Schütte, P Söding, G Wolf, R Fohrmann, HL Krasemann, P Leu, D Pandoulas, G Poelz, O Römer, P Schmüser, BH Wiik, I Al-Agil, 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, M Holder, E Duchovni, Y Eisenberg, U Karshon, G Mikenberg, D Revel, E Ronat, A Shapira, T Barklow, J Freeman, T Meyer, G Rudolph, E Wicklund, SL Wu, G Zobernig

Abstract:

The ration R = σ(e+e- → hadrons)σμμ was measured between 12.0 and 36.7 GeV c.m. energy W with a precision of typically ± 5.2%. R is found to be constant with an average R = 4.01 ± 0.03 (stat) ± (syst.) for W ≥ 14 GeV. Quarks are found to be point-like, the mass parameter describing a possible quark form-factor being larger than 186 GeV. Fits including QCD corrections and a weak neutral-current contribution are presented. © 1982.

Charged pion production in e+e- annihilation at 14, 22 and 34 GeV CM energy

Physics Letters B 113:1 (1982) 98-104

Authors:

R Brandelik, W Braunschweig, K Gather, FJ Kirschfink, K Lübelsmeyer, 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 Köpke, H Kolanoski, B Löhr, R Wedemeyer, N Wermes, M Wollstadt, H Burkhardt, S Cooper, D Heyland, H Hultschig, P Joos, W Koch, P Koehler, U Kötz, H Kowalski, A Ladage, D Lüke, HL Lynch, P Mättig, KH Mess, D Notz, J Pyrlik, DR Quarrie, R Reithmüller, A Shapira, P Söding, G Wolf, R Fohrmann, M Holder, HL Krasemann, P Leu, D Pandoulas, G Poelz, O Römer, R Rüsch, P Schmüser, BH Wiik, I Al-Agil, 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, P Lecomte, T Meyer, G Rudolph, E Wicklund, S Lan Wu, G Zobernig

Abstract:

The inclusive production of π^± mesons in e⁺e^- annihilation has been measured at c.m. energies of 14, 22 and 34 GeV for pion momenta between 0.3 ans 10 GeV/c. The fraction of pions among the charged hadrons is above 90% at 0.4 GeV/c and decreases to about 50% at high momenta. The scaled cross sections ( s β) dσ dx at 14, 22 and 34 GeV as well as the 5.2 GeV data from DASP have a rather similar x dependence. After integration over the x range from 0.2 to 0.6 the cross sections indicate a monotonic decrease with increasing centre-of-mass energy. © 1982.

91̽��

Susan Cooper

Sub department

Electroweak coupling constants in the leptonic reactions e⁺e^- → e⁺e^- and e⁺e^- → μ⁺μ^- and search for scalar leptons

Authors:

Abstract:

Inclusive ϱ0 production in e+e- annihilation at high energy

Authors:

Abstract:

Scale breaking in inclusive charged particle production by e⁺e^- annihilation

Authors:

Abstract:

A measurement of σtot(e⁺e^- → hadrons) for cm energies between 12.0 and 36.7 GeV

Authors:

Abstract:

Charged pion production in e+e- annihilation at 14, 22 and 34 GeV CM energy

Authors:

Abstract:

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91̽��

Susan Cooper

Sub department

Electroweak coupling constants in the leptonic reactions e+e- → e+e- and e+e- → μ+μ- and search for scalar leptons

Authors:

Abstract:

Inclusive ϱ0 production in e+e- annihilation at high energy

Authors:

Abstract:

Scale breaking in inclusive charged particle production by e+e- annihilation

Authors:

Abstract:

A measurement of σtot(e+e- → hadrons) for cm energies between 12.0 and 36.7 GeV

Authors:

Abstract:

Charged pion production in e+e- annihilation at 14, 22 and 34 GeV CM energy

Authors:

Abstract:

Electroweak coupling constants in the leptonic reactions e⁺e^- → e⁺e^- and e⁺e^- → μ⁺μ^- and search for scalar leptons

Scale breaking in inclusive charged particle production by e⁺e^- annihilation

A measurement of σtot(e⁺e^- → hadrons) for cm energies between 12.0 and 36.7 GeV