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MEASUREMENT OF W+/- AND Z0 PROPERTIES AT THE CERN PBARP COLLIDER

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS 30:1 (1986) 1-22

Authors:

JA APPEL, P BAGNAIA, M BANNER, R BATTISTON, K BERNLOHR, K BORER, M BORGHINI, G CARBONI, V CAVASINNI, P CENCI, JC CHOLLET, AG CLARK, A CODINO, C CONTA, P DARRIULAT, B DELOTTO, T DELPRETE, L DILELLA, J DINESHANSEN, K EINSWEILER, R ENGELMANN, L FAYARD, M FRATERNALI, D FROIDEVAUX, JM GAILLARD, O GILDEMEISTER, VG GOGGI, C GOSSLING, B HAHN, H HANNI, JR HANSEN, P HANSEN, N HARNEW, T HIMEL, L ICONOMIDOUFAYARD, K JAKOBS, P JENNI, EE KLUGE, O KOFOEDHANSEN, E LANCON, M LIVAN, S LOUCATOS, B MADSEN, P MANI, B MANSOULIE, GC MANTOVANI, L MAPELLI, K MEIER, B MERKEL, R MOLLERUD, M MONIEZ, R MONING, M MORGANTI, B NILSSON, C ONIONS, MA PARKER, G PARROUR, F PASTORE, M PEPE, H PLOTHOWBESCH, M POLVEREL, A PUTZER, JP REPELLIN, AF ROTHENBERG, A ROUSSARIE, V RUHLMANN, G SAUVAGE, J SCHACHER, M SCHLOTELBURG, F STOCKER, M SWARTZ, J TEIGER, K TITTEL, SN TOVEY, WY TSANG, M VALDATANAPPI, V VERCESI, AR WEIDBERG, M WUNSCH, H ZACCONE
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Experimental study of the emergence of two-jet dominance in pp collisions at √s = 630 GeV

Physics Letters B 165:4-6 (1985) 441-448

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, 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, MA Parker, G Parrour, F Pastore, M Pepe, H Plothow-Besch, M Polverel, JP Repellin, A Rimoldi, AF Rothenberg, A Roussarie, V Ruhlmann, G Sauvage, J Schacher, M Schlötelburg, F Stocker, M Swartz, J Teiger, SN Tovey, WY Tsang, M Valdata-Nappi, V Vercesi, AR Weidberg, M Wunsch, H Zaccone

Abstract:

A heuristic model is used to describe data collected by the UA2 experiment at √s = 630 GeV. Distributions of the energy sharing between the leading clusters and the rest of the event are examined. The main features of these distributions can be described by a two-component model with soft, collective interactions dominating at low transverse energy and hard, constituent interactions dominating at high transverse energy. This model provides a simple picture of the emergence of two-jet dominance at SPS pp Collider energies. © 1985.
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Bose-Einstein correlations in e+e- annihilations in the Υ region

Physical Review D American Physical Society (APS) 32:9 (1985) 2294-2302

Authors:

P Avery, C Bebek, K Berkelman, DG Cassel, T Copie, R DeSalvo, JW DeWire, R Ehrlich, RS Galik, MGD Gilchriese, B Gittelman, SW Gray, AM Halling, DL Hartill, BK Heltsley, S Holzner, M Ito, J Kandaswamy, DL Kreinick, Y Kubota, NB Mistry, E Nordberg, M Ogg, D Peterson, D Perticone, M Pisharody, K Read, A Silverman, PC Stein, S Stone, Xu Kezun, AJ Sadoff, T Bowcock, RT Giles, J Hassard, K Kinoshita, FM Pipkin, Richard Wilson, P Haas, M Hempstead, T Jensen, H Kagan, R Kass, S Behrends, T Gentile, Jan M Guida, Joan A Guida, F Morrow, G Parkhurst, R Poling, C Rosenfeld, EH Thorndike, P Tipton, D Besson, J Green, R Namjoshi, F Sannes, P Skubic, R Stone, D Bortoletto, A Chen, M Goldberg, N Horwitz, A Jawahery, P Lipari, P Lubrano, GC Moneti, CG Trahern, H van Hecke, SE Csorna, L Garren, MD Mestayer, RS Panvini, GB Word, Xia Yi, MS Alam, A Bean, T Ferguson
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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.
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Bounds on light gluinos from the BEBC beam dump experiment

Physics Letters B 160:1-3 (1985) 212-216

Authors:

AM Cooper-Sarkar, MA Parker, S Sarkar, M Aderholz, P Bostock, EF Clayton, ML Faccini-Turluer, H Grässler, J Guy, PO Hulth, K Hultqvist, U Idschok, H Klein, H Kreutzmann, J Krstic, MM Mobayyen, DRO Morrison, B Nellen, P Schmid, N Schmitz, M Talebzadeh, W Venus, D Vignaud, C Walck, H Wachsmuth, B Wünsch

Abstract:

Observational upper limits on anomalous neutral-current events in a proton beam dump experiment are used to constrain the possible hadroproduction and decay of light gluinos. These results require ifmg̃ $ ̌4 GeV for ifmq̃ - minw. © 1985.
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