Professor Tony Weidberg: Publications

Measurement of the s dependence of jet production at the CERN pp collider

Physics Letters B 160:4-5 (1985) 349-356

Authors:

JA Appel, P Bagnaia, M Banner, R Battiston, K Bernlöhr, K Borer, M Borghini, G Carboni, V Cavasinni, P Cenci, JC Chollet, AG Clark, A Codino, C Conta, P Darriulat, B De Lotto, T Del Prete, L Di Lella, J Dines-Hansen, K Einsweiler, R Engelmann, L Fayard, M Fraternali, D Froidevaux, JM Gaillard, O Gildemeister, VG Goggi, C Gössling, B Hahn, H Hänni, JR Hansen, P Hansen, N Harnew, T Himel, L Iconomidou-Fayard, P Jenni, EE Kluge, O Kofoed-Hansen, E Lançon, M Livan, S Loucatos, B Madsen, P Mani, B Mansoulié, GC Mantovani, L Mapelli, K Meier, B Merkel, R Mollerud, M Moniez, R Moning, M Morganti, C Onions, G Parrour, F Pastore, M Pepe, H Plothow-Besch, M Polverel, A Putzer, LO Rasmussen, JP Repellin, A Rimoldi, AF Rothenberg, A Roussarie, V Ruhlmann, G Sauvage, J Schacher, M Schlötelburg, F Stocker, M Swartz, J Teiger, K Tittel, SN Tovey, WY Tsang, M Valdata-Nappi, V Vercesi, AR Weidberg, M Wunsch, H Zaccone

Abstract:

The production of very large transverse momentum (pT) hadron jets has been measured in the UA2 experiment at the CERN pp Collider for s=630 GeV. The inclusive jet production cross sections exhibit a pT-dependent increase with respect to the s=546 GeV data from previous Collider runs. This increase can be described both by QCD calculations and by approximate xT=2pT/√s scaling. No significant deviation of the data from QCD predictions is observed at very large pT, placing a lower limit on the characteristic scale Λc of a hypothetical superstrong contact interaction responsible for the binding of preons in the quark (Λc>370 GeV at 95% CL). © 1985.

Inclusive particle production in the transverse momentum range between 0.25 and 40 GeV/c at the CERN collider

Zeitschrift für Physik C Particles and Fields Springer Nature 27:3 (1985) 329-339

Authors:

UA2 Collaboration, M Banner, Ph Bloch, F Bonaudi, K Borer, M Borghini, JC Chollet, AG Clark, C Conta, P Darriulat, L Di Lella, J Dines Hansen, PA Dorsaz, L Fayard, M Fraternali, D Froidevaux, JM Gaillard, O Gildemeister, VG Goggi, B Hahn, H Hänni, JR Hansen, P Hansen, T Himel, V Hungerbühler, P Jenni, O Kofoed-Hansen, E Lançon, M Livan, S Loucatos, B Madsen, P Mani, B Mansoulié, GC Mantovani, L Mapelli, B Merkel, R Møllerud, C Onions, G Parrour, F Pastore, H Plothow-Besch, M Polverel, JP Repellin, A Rimoldi, A Rothenberg, A Roussarie, G Sauvage, J Schacher, JL Siegrist, F Stocker, J Teiger, V Vercesi, A Weidberg, H Zaccone, W Zeller

51�� of electron pairs below the Z⁰ mass produced in pp collisions at √s = 540 GeV

Physics Letters B 154:4 (1985) 338-346

Authors:

P Bagnaia, M Banner, R Battiston, P Bloch, K Borer, M Borghini, J Bürger, P Cenci, JC Chollet, AG Clark, C Conta, P Darriulat, L Di Lella, J Dines-Hansen, R Engelmann, L Fayard, M Fraternali, D Froidevaux, JM Gaillard, O Gildemeister, VG Goggi, C Gössling, B Hahn, H Hänni, JR Hansen, P Hansen, N Harnew, T Himel, P Jenni, O Kofoed-Hansen, E Lancon, M Livan, S Loucatos, B Madsen, P Mani, B Mansoulie, GC Mantovani, L Mapelli, B Merkel, R Møllerud, C Onions, G Parrour, F Pastore, H Plothow-Besch, M Polverel, JP Repellin, A Rothenberg, A Roussarie, G Sauvage, J Schacher, JL Siegrist, G Stimpfl, F Stocker, M Swartz, J Teiger, S Tovey, V Vercesi, AR Weidberg, H Zaccone, JA Zakrzewski, W Zeller

Abstract:

From an integrated luminosity of ∫Ldt = 116 nb-1, 10events are found which contain an electron pair of mass in the range 12 < Mee < 26 GeV c2 and electron transverse momenta pTe > 5 GeV c. THe sample are described, as well as some featruyres of the The production characteristics of this sample are described, as well as some features of the estimated to be 2.2±0.6 events. The production characteristics of this sample are described, as well as some features of the associated event topology. Comparisons are made with the expectations for such electron pair production from the Drell-Yan mechanism and from the semi-leptonic decay of heavy flavours. © 1985.

Measurement of jet fragmentation properties at the CERN pp Collider

Physics Letters B 144:3-4 (1984) 291-296

Authors:

P Bagnaia, M Banner, R Battiston, P Bloch, K Borer, M Borghini, J Bürger, P Cenci, JC Chollet, AG Clark, C Conta, P Darriulat, L Di Lella, J Dines-Hansen, R Engelmann, L Fayard, M Fraternali, D Froidevaux, JM Gaillard, O Gildemeister, VG Goggi, C Gössling, B Hahn, H Hänni, JR Hansen, P Hansen, N Harnew, T Himel, P Jenni, O Kofoed-Hansen, E Lançon, M Livan, S Loucatos, B Madsen, P Mani, B Mansoulié, GC Mantovani, L Mapelli, B Merkel, R Mollerud, C Onions, G Parrour, F Pastore, H Plothow-Besch, M Polverel, JP Repellin, A Rothenberg, A Roussarie, G Sauvage, J Schacher, JL Siegrist, G Stimpfl, F Stocker, M Swartz, J Teiger, S Tovey, V Vercesi, AR Weidberg, H Zaccone, JA Zakrzewski, W Zeller

Abstract:

Fragmentation properties of a sample of two-jet events measured by the UA2 detector at the CERN pp Collider are described. The energy flow is compared with different model predictions. The charged particle multiplicity in jets is found to exceed extrapolations from lower energy e+e- jet data. © 1984.

Measurement of jet production properties at the CERN pp Collider

Physics Letters B 144:3-4 (1984) 283-290

Authors:

P Bagnaia, M Banner, R Battiston, P Bloch, K Borer, M Borghini, J Bürger, P Cenci, JC Chollet, AG Clark, C Conta, P Darriulat, L Di Lella, J Dines-Hansen, R Engelmann, L Fayard, M Fraternali, D Froidevaux, JM Gaillard, O Gildemeister, VG Goggi, C Gössling, B Hahn, H Hänni, JR Hansen, P Hansen, N Harnew, T Himel, P Jenni, O Kofoed-Hansen, E Lançon, M Livan, S Loucatos, B Madsen, P Mani, B Mansoulié, GC Mantovani, L Mapelli, B Merkel, R Mollerud, C Onions, G Parrour, F Pastore, H Plothow-Besch, M Polverel, JP Repellin, A Rothenberg, A Roussarie, G Sauvage, J Schacher, JL Siegrist, G Stimpfl, F Stocker, M Swartz, J Teiger, S Tovey, V Vercesi, AR Weidberg, H Zaccone, JA Zakrzewski, W Zeller

Abstract:

Jet production properties at s = 540 GeV have been measured in the UA2 detector at the CERN pp Collider. Results on the total transverse momentum of the jet system, on the parton density in the nucleon (structure function) and on the two-jet angular distributions are reported. The data are compared with QCD predictions and extrapolations from lower energy experiments. © 1984.

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