Professor Tony Weidberg: Publications

51�� of electron pair production below the Z mass at the CERN pp collider

Physics Letters B 275:1-2 (1992) 202-208

Authors:

J Alitti, G Ambrosini, R Ansari, D Autiero, P Bareyre, IA Bertram, G Blaylock, P Bonamy, K Borer, M Bourliaud, D Buskulic, G Carboni, D Cavalli, V Cavasinni, P Cenci, JC Chollet, C Conta, G Costa, F Costantini, L Cozzi, A Cravero, M Curatolo, A Dell'Acqua, T DelPrete, RS DeWolf, L DiLella, Y Ducros, GF Egan, KF Einsweiler, B Esposito, L Fayard, A Federspiel, R Ferrari, M Fraternali, D Friodevaux, G Fumagalli, JM Gaillard, F Gianotti, O Gildemeister, C Gössling, VG Goggi, S Grünendahl, K Hara, S Hellman, J Hrivnac, H Hufnagel, E Hugentobler, K Hultqvist, E Iacopini, J Incandela, K Jakobs, P Jenni, EE Kluge, N Kurz, S Lami, P Lariccia, M Lefebvre, L Linssen, M Livan, P Lubrano, C Magneville, L Mandelli, L Mapelli, M Mazzanti, K Meier, B Merkel, JP Meyer, M Moniez, R Moning, M Morganti, L Müller, DJ Munday, M Nessi, F Nessi-Tedaldi, C Onions, T Pal, MA Parker, G Parrour, F Pastore, E Pennacchio, JM Pentney, M Pepe, L Perini, C Petridou, P Petroff, H Plothow-Besch, G Polesello, A Poppleton, K Pretzl, M Primavera, M Punturo, JP Repellin, A Rimoldi, M Sacchi, P Scampoli, J Schacher, B Schmidt, V Simak, SL Singh, V Sondermann

Abstract:

Results on the cross section for the production of electron pairs in pp collisions at √s = 630 GeV are presented. The measured value is σ = 405 ± 51 (syst.) ± 84 (syst.) pb, in the invariant mass interval 10 < m< 70 GeV. The results are compared to recent theoretical calculations which include O(αs²) QCD contributions. The comparison of these data with those of lower energy experiments show approximate scaling as a function of the variable √τ = m √s. © 1992.

A search for scalar leptoquarks at the CERN pp collider

Physics Letters B 274:3-4 (1992) 507-512

Authors:

J Alitti, G Ambrosini, R Ansari, D Autiero, P Bareyre, IA Bertram, G Blaylock, P Bonamy, K Borer, M Bourliaud, D Buskulic, G Carboni, D Cavalli, V Cavasinni, P Cenci, JC Chollet, C Conta, G Costa, F Costantini, L Cozzi, A Cravero, M Curatolo, A Dell'Acqua, T DelPrete, RS DeWolf, L DiLella, Y Ducros, GF Egan, KF Einsweiler, B Esposito, L Fayard, A Federspiel, R Ferrari, M Fraternali, D Froidevaux, G Fumagalli, JM Gaillard, F Gianotti, O Gildemeister, C Gössling, VG Goggi, S Grünendahl, K Hara, S Hellman, J Hřivnáč, H Hufnagel, E Hugentobler, K Hultqvist, E Iacopini, J Incandela, K Jakobs, P Jenni, EE Kluge, N Kurz, S Lami, P Lariccia, M Lefebvre, L Linssen, M Livan, P Lubrano, C Magneville, L Mandelli, L Mapelli, M Mazzanti, K Meier, B Merkel, JP Meyer, M Moniez, R Moning, M Morganti, L Müller, DJ Munday, M Nessi, F Nessi-Tedaldi, C Onions, T Pal, MA Parker, G Parrour, F Pastore, E Pennacchio, JM Pentney, M Peper, L Perini, C Petridou, P Petroff, H Plothow-Besch, G Polesello, A Poppleton, K Pretzl, M Primavera, M Punturo, JP Repellin, A Rimoldi, M Sacchi, P Scampoli, J Schacher, B Schmidt, V Šimák, SL Singh, V Sondermann

Abstract:

A search has been made for scalar leptoquark pair production with the upgraded UA2 detector at the CERN pp Collider at √s = 630 GeV, investigating decays of the leptoquark into a quark and either an electron or an electron neutrino. From an event sample corresponding to an integrated luminosity of 13 pb^-1 a lower limit has been determined for the mass of first generation leptoquarks, yielding 67 GeV (95% CL) for a scalar leptoquark decaying with a 50% branching ratio into a quark and an electron. © 1992.

A MEASUREMENT OF SINGLE AND DOUBLE PROMPT PHOTON PRODUCTION AT THE CERN P(BAR)P COLLIDER

PHYSICS LETTERS B 288:3-4 (1992) 386-394

Authors:

J ALITTI, G AMBROSINI, R ANSARI, D AUTIERO, P BAREYRE, IA BERTRAM, G BLAYLOCK, P BONAMY, K BORER, M BOURLIAUD, D BUSKULIC, G CARBONI, D CAVALLI, V CAVASINNI, P CENCI, JC CHOLLET, C CONTA, G COSTA, F COSTANTINI, L COZZI, A CRAVERO, M CURATOLO, A DELLACQUA, T DELPRETE, RS DEWOLF, L DILELLA, Y DUCROS, GF EGAN, KF EINSWEILER, B ESPOSITO, L FAYARD, A FEDERSPIEL, R FERRARI, M FRATERNALI, D FROIDEVAUX, G FUMAGALLI, JM GAILLARD, F GIANOTTI, O GILDEMEISTER, C GOSSLING, VG GOGGI, S GRUNENDAHL, K HARA, S HELLMAN, J HRIVNAC, H HUFNAGEL, E HUGENTOBLER, K HULTQVIST, E IACOPINI, J INCANDELA, K JAKOBS, P JENNI, EE KLUGE, N KURZ, S LAMI, P LARICCIA, M LEFEBVRE, L LINSSEN, M LIVAN, P LUBRANO, C MAGNEVILLE, L MALGERI, L MANDELLI, L MAPELLI, M MAZZANTI, K MEIER, B MERKEL, JP MEYER, M MONIEZ, R MONING, M MORGANTI, L MULLER, DJ MUNDAY, M NESSI, F NESSITEDALDI, C ONIONS, T PAL, MA PARKER, G PARROUR, F PASTORE, E PENNACCHIO, JM PENTNEY, M PEPE, L PERINI, C PETRIDOU, P PETROFF, H PLOTHOWBESCH, G POLESELLO, A POPPLETON, K PRETZL, M PRIMAVERA, M PUNTURO, JP REPELLIN, A RIMOLDI, M SACCHI, P SCAMPOLI, J SCHACHER, B SCHMIDT, V SIMAK, SL SINGH, V SONDERMANN, R SPIWOKS, S STAPNES, C TALAMONTI, F TONDINI, SN TOVEY, E TSESMELIS, G UNAL, M VALDATANAPPI, V VERCESI, AR WEIDBERG, PS WELLS, TO WHITE, DR WOOD, SA WOTTON, H ZACCONE, A ZYLBERSTEJN

A MEASUREMENT OF THE W AND Z PRODUCTION CROSS-SECTIONS AND A DETERMINATION OF GAMMA-W AT THE CERN PBARP COLLIDER

PHYSICS LETTERS B 276:3 (1992) 365-374

Authors:

J ALITTI, G AMBROSINI, R ANSARI, D AUTIERO, P BAREYRE, IA BERTRAM, G BLAYLOCK, P BONAMY, K BORER, M BOURLIAUD, D BUSKULIC, G CARBONI, D CAVALLI, V CAVASINNI, P CENCI, JC CHOLLET, C CONTA, G COSTA, F COSTANTINI, L COZZI, A CRAVERO, M CURATOLO, A DELLACQUA, T DELPRETE, RS DEWOLF, L DILELLA, Y DUCROS, GF EGAN, KF EINSWEILER, B ESPOSITO, L FAYARD, A FEDERSPIEL, R FERRARI, M FRATERNALI, D FROIDEVAUX, G FUMAGALLI, JM GAILLARD, F GAINOTTI, O GILDEMEISTER, C GOSSLING, VG GOGGI, S GRUNENDAHL, K HARA, S HELLMAN, J HRIVNAC, H HUFNAGEL, E HUGENTOBLER, K HULTQVIST, E IACOPINI, J INCANDELA, K JAKOBS, P JENNI, EE KLUGE, N KURZ, S LAMI, P LARICCIA, M LEFEBVRE, L LINSSEN, M LIVAN, P LUBRANO, C MAGNEVILLE, L MANDELLI, L MAPELLI, M MAZZANTI, K MEIER, B MERKEL, JP MEYER, M MONIEZ, R MONING, M MORGANTI, L MULLER, DJ MUNDAY, M NESSI, F NESSITEDALDI, C ONIONS, T PAL, MA PARKER, G PARROUR, F PASTORE, E PENNACCHIO, JM PENTNEY, M PEPE, L PERINI, C PETRIDOU, P PETROFF, H PLOTHOWBESCH, G POLESELLO, A POPPLETON, K PRETZL, M PRIMAVERA, M PUNTURO, JP REPELLIN, A RIMOLDI, M SACCHI, P SCAMPOLI, J SCHACHER, B SCHMIDT, V SIMAK, SL SINGH, V SONDERMANN, R SPIWOKS, S STAPNES, C TALAMONTI, F TONDINI, SN TOVEY, E TSESMELIS, G UNAL, M VALDATANAPPI, V VERCESI, AR WEIDBERG, PS WELLS, TO WHITE, DR WOOD, SA WOTTON, H ZACCONE, A ZYLBERSTEJN

AN IMPROVED DETERMINATION OF THE RATIO OF W AND Z MASSES AT THE CERN PBARP COLLIDER

PHYSICS LETTERS B 276:3 (1992) 354-364

Authors:

J ALITTI, G AMBROSINI, R ANSARI, D AUTIERO, P BAREYRE, IA BERTRAM, G BLAYLOCK, P BONAMY, K BORER, M BOURLIAUD, D BUSKULIC, G CARBONI, D CAVALLI, V CAVASINNI, P CENCI, JC CHOLLET, C CONTA, G COSTA, F COSTANTINI, L COZZI, A CRAVERO, M CURATOLO, A DELLACQUA, T DELPRETE, RS DEWOLF, L DILELLA, Y DUCROS, GF EGAN, KF EINSWEILER, B ESPOSITO, L FAYARD, A FEDERSPIEL, R FERRARI, M FRATERNALI, D FROIDEVAUX, G FUMAGALLI, JM GAILLARD, F GIANOTTI, O GILDEMEISTER, C GOSSLING, VG GOGGI, S GRUNENDAHL, K HARA, S HELLMAN, J HRIVNAC, H HUFNAGEL, E HUGENTOBLER, K HULTQVIST, E IACOPINI, J INCANDELA, K JAKOBS, P JENNI, EE KLUGE, N KURZ, S LAMI, P LARICCIA, M LEFEBVRE, L LINSSEN, M LIVAN, P LUBRANO, C MAGNEVILLE, L MANDELLI, L MAPELLI, M MAZZANTI, K MEIER, B MERKEL, JP MEYER, M MONIEZ, R MONING, M MORGANTI, L MULLER, DJ MUNDAY, M NESSI, F NESSITEDALDI, C ONIONS, T PAL, MA PARKER, G PARROUR, F PASTORE, E PENNACCHIO, JM PENTNEY, M PEPE, L PERINI, C PETRIDOU, P PETROFF, H PLOTHOWBESCH, G POLESELLO, A POPPLETON, K PRETZL, M PRIMAVERA, M PUNTURO, JP REPELLIN, A RIMOLDI, M SACCHI, P SCAMPOLI, J SCHACHER, B SCHMIDT, V SIMAK, SL SINGH, V SONDERMANN, R SPIWOKS, S STAPNES, C TALAMONTI, F TONDINI, SN TOVEY, E TSESMELIS, G UNAL, M VALDATANAPPI, V VERCESI, AR WEIDBERG, PS WELLS, TO WHITE, DR WOOD, SA WOTTON, H ZACCONE, A ZYLBERSTEJN

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