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Study of the decay B--> psi X.

Physical review. D, Particles and fields 34:11 (1986) 3279-3285

Authors:

MS Alam, N Katayama, IJ Kim, CR Sun, V Tanikella, A Bean, GJ Bobbink, I Brock, A Engler, T Ferguson, R Kraemer, C Rippich, R Sutton, H Vogel, C Bebek, K Berkelman, E Blucher, DG Cassel, T Copie, R DeSalvo, JW DeWire, R Ehrlich, RS Galik, MG Gilchriese, B Gittelman, SW Gray, AM Halling, DL Hartill, BK Heltsley, S Holzner, M Ito, J Kandaswamy, R Kowalewski, DL Kreinick, Y Kubota, NB Mistry, J Mueller, R Namjoshi, E Nordberg, M Ogg, D Perticone, D Peterson, M Pisharody, K Read, D Riley, A Silverman, S Stone, X Yi, AJ Sadoff, P Avery, D Besson, T Bowcock, RT Giles, J Hassard, K Kinoshita, FM Pipkin, R Wilson, J Wolinski, D Xiao, T Gentile, P Haas, M Hempstead, T Jensen, H Kagan
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Direct photon production at the CERN p̄p collider

Physics Letters B 176:1-2 (1986) 239-246

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, LD Dilella, 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, K Jacobs, P Jenni, EE Kluge, O Kofoedo.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, 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:

Using the UA2 apparatus, the inclusive cross section has been measured for production of high-pT direct photons in p̄p collisions at s=546 GeV and s=630 GeV. The results are in good agreement with QCD predictions. © 1986.
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Prompt neutrino production in 400 GeV proton copper interactions

Nuclear Physics, Section B 273:2 (1986) 253-274

Authors:

H Grässler, W Dröge, U Idschok, H Kreutzmann, B Nellen, B Wünsch, AM Cooper-Sarkar, DC Cundy, H Foeth, A Grant, GG Harigel, H Klein, DRO Morrison, M Nikolić, L Pape, MA Parker, P Schmid, H Wachsmuth, M Dris, E Simopoulou, A Vayaki, KWJ Barnham, DB Miller, MM Mobayyen, M Talebzadeh, M Aderholz, L Deck, N Schmitz, W Wittek, P Bostock, J Krstić, G Myatt, D Radojicić, J Guy, W Venus, T Bolognese, ML Faccini-Turluer, D Vignaud, PO Hulth, K Hultqvist, C Walck

Abstract:

The prompt electron neutrino and muon neutrino fluxes from proton copper interactions at 400 GeV/c proton momentum have been measured. The asymmetry between the prompt electron (anti) neutrino and the prompt muon (anti) neutrino event rates above 20 GeV is Aeμ = (Ne - Nμ (Nc + Nμ) = 0.07 ± 0.08 corresponding to an Ne/Nμ ratio of 1.14-0.16-0.19. The cross section weighted charge asymmetry for electrons and muons combined is Aνν = 0.15 ± 0.08. The number of D decays into νe and νμ is (4.1 ± 0.9) × 10-4 per incident proton. No evidence for ντ interactions was found. © 1986.
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Exclusive radiative Upsilon (1S) decays.

Physical review. D, Particles and fields 34:3 (1986) 905-908

Authors:

A Bean, GJ Bobbink, I Brock, A Engler, T Ferguson, R Kraemer, C Rippich, R Sutton, H Vogel, C Bebek, K Berkelman, E Blucher, DG Cassel, T Copie, R DeSalvo, JW DeWire, R Ehrlich, RS Galik, MG Gilchriese, B Gittelman, SW Gray, AM Halling, DL Hartill, BK Heltsley, S Holzner, M Ito, J Kandaswamy, R Kowalewski, DL Kreinick, Y Kubota, NB Mistry, J Mueller, E Nordberg, M Ogg, D Peterson, D Perticone, M Pisharody, K Read, D Riley, A Silverman, PC Stein, S Stone, AJ Sadoff, P Avery, D Besson, T Bowcock, RT Giles, J Hassard, K Kinoshita, FM Pipkin, R Wilson, P Haas, M Hempstead, T Jensen, H Kagan, R Kass, S Behrends, T Gentile, JM Guida, JA Guida, F Morrow, R Poling, C Rosenfeld, EH Thorndike
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Measurement of total cross sections for neutrino and antineutrino charged-current interactions in hydrogen and neon

Physics Letters B 173:2 (1986) 211-216

Authors:

M Aderholz, G Corrigan, E Hoffmann, GT Jones, RWL Jones, BW Kennedy, DB Miller, MM Mobayyen, DRO Morrison, G Myatt, D Radojicic, P Schmid, N Schmitz, PN Shotton, SJ Towers, W Wittek, KWJ Barnham, JP Baton, M Berggren, D Bertrand, FW Bullock, M Calicchio, EF Clayton, T Coghen, AM Cooper-Sarkar, O Erriquez, PJ Fitch, MT Fogli-Muciaccia, JG Guy, F Hamisi, PO Hulth, P Kasper, H Klein, M Lagraa, P Marage, RP Middleton, SW O'Neale, MA Parker, J Sacton, RA Sansum, E Simopoulou, C Vallée, K Varvell, A Vayaki, W Venus, H Wachmuth, J Wells

Abstract:

BEBC filled in turn with hydrogen, and with a neon-hydrogen mixture, was exposed to the CERN SPS wide band neutrino and antineutrino beams. The ratios of the charged-current cross sections per nucleon, σ(νH2) σ(νNe) and σ(νH2) σ(νNe), between 20 and 300 GeV were found to be 0.656 ± 0.020 and 1.425 ± 0.052, respectively. Multiplying these ratios by the revised cross sections in neon, σ(νNe) E = (0.723 ± 0.038) × 10-38 cm2/GeV per nucleon and σ(νNe) E = (0.351 ± 0.019) × 10-38 cm2/GeV per nucleon, and their ratio, σ(νNe) σ(νNe) = 0.485 ± 0.020,, yields values for the total charged-current cross sections on protons, σ(νp)/E and σ(νp) E, of (0.474 ± 0.029) × 10-38 cm2/GeV and (0.500 ± 0.032) × 10-38 cm2/GeV. respectively, and a value for the ratio σ(νp) σ(νp) of 1.053 ± 0.066. © 1986.
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