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Determination of the parton distributions and structure functions of the proton from neutrino and antineutrino reactions on hydrogen and deuterium

Zeitschrift für Physik C Particles and Fields 62:4 (1994) 575-600

Authors:

GT Jones, RWL Jones, BW Kennedy, H Klein, DRO Morrison, H Wachsmuth, DB Miller, MM Mobayyen, S Wainstein, M Aderholz, D Hantke, UF Katz, J Kern, N Schmitz, W Wittek, HP Borner, G Myatt, AM Cooper-Sarkar, J Guy, W Venus, FW Bullock, S Burke

Abstract:

This analysis is based on data from neutrino and antineutrino scattering on hydrogen and deuterium, obtained with BEBC in the (anti) neutrino wideband beam of the CERN SPS. The parton momentum distributions in the proton and the proton structure functions are determined in the range 0.01
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Determination of the ratio rv=dvuv of the valence quark distributions in the proton from neutrino and antineutrino reactions on hydrogen and deuterium

Zeitschrift Fur Physik C Particles and Fields 62:4 (1994) 601-607

Authors:

GT Jones, RWL Jones, BW Kennedy, H Klein, DRO Morrison, H Wachsmuth, DB Miller, MM Mobayyen, S Wainstein, M Aderholz, D Hantke, UF Katz, J Kern, N Schmitz, W Wittek, HP Borner, G Myatt, AM Cooper-Sarkar, J Guy, W Venus, FW Bullock, S Burke

Abstract:

Based on a QCD analysis of the parton momentum distributions in the proton, the ratio rv=dv/uv of the d and u valence quark distributions is determined as function of x in the range 0.01v mainly depends on the deuterium/hydrogen ratios of the normalised x-y-Q2-distributions many systematic effects cancel. It is found that rv decreases with increasing x, and drops below the naive SU(6) expectation of 0.5 for x≳0.3. An extrapolation of rv to x=1 is consistent with the hypothesis rv(1)=0. © 1994 Springer-Verlag.
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Precision Measurement of the Prompt Photon Cross Section in pp¯ Collisions at s=1.8 TeV

Physical Review Letters American Physical Society (APS) 73:20 (1994) 2662-2666

Authors:

F Abe, MG Albrow, D Amidei, J Antos, C Anway-Wiese, G Apollinari, H Areti, M Atac, P Auchincloss, F Azfar, P Azzi, N Bacchetta, W Badgett, MW Bailey, J Bao, P de Barbaro, A Barbaro-Galtieri, VE Barnes, BA Barnett, P Bartalini, G Bauer, T Baumann, F Bedeschi, S Behrends, S Belforte, G Gellettini, J Bellinger, D Benjamin, J Benlloch, J Bensinger, D Benton, A Beretvas, JP Berge, S Bertolucci, A Bhatti, K Biery, M Binkley, F Bird, D Bisello, RE Blair, C Blocker, A Bodek, W Bokhari, V Bolognesi, D Bortoletto, C Boswell, T Boulos, G Brandenburg, E Buckley-Geer, HS Budd, K Burkett, G Busetto, A Byon-Wagner, KL Byrum, J Cammerata, C Campagnari, M Campbell, A Caner, W Carithers, D Carlsmith, A Castro, Y Cen, F Cervelli, J Chapman, MT Cheng, G Chiarelli, T Chikamatsu, S Cihangir, AG Clark, M Cobal, M Contreras, J Conway, J Cooper, M Cordelli, D Crane, JD Cunningham, T Daniels, F DeJongh, S Delchamps, S Dell'Agnello, M Dell'Orso, L Demortier, B Denby, M Deninno, PF Derwent, T Devlin, M Dickson, S Donati, RB Drucker, A Dunn, K Einsweiler, JE Elias, R Ely, E Engels, S Eno, D Errede, S Errede, Q Fan, B Farhat, I Fiori, B Flaugher, GW Foster, M Franklin, M Frautschi, J Freeman, J Friedman, H Frisch, A Fry, TA Fuess, Y Fukui, S Funaki, G Gagliardi, S Galeotti, M Gallinaro, AF Garfinkel, S Geer, DW Gerdes, P Giannetti, N Giokaris, P Giromini, L Gladney, D Glenzinski, M Gold, J Gonzalez, A Gordon, AT Goshaw, K Goulianos, H Grassmann, A Grewal, G Grieco, L Groer, C Grosso-Pilcher, C Haber, SR Hahn, R Hamilton, R Handler, RM Hans, K Hara, B Harral, RM Harris, SA Hauger, J Hauser, C Hawk, J Heinrich, D Cronin-Hennessy, R Hollebeek, L Holloway, A Hölscher, S Hong, G Houk, P Hu, BT Huffman, R Hughes, P Hurst, J Huston, J Huth, J Hylen, M Incagli, J Incandela, H Iso, H Jensen, CP Jessop, U Joshi, RW Kadel, E Kajfasz, T Kamon, T Kaneko, DA Kardelis, H Kasha, Y Kato, L Keeble, RD Kennedy, R Kephart, P Kesten, D Kestenbaum, RM Keup, H Keutelian, F Keyvan, DH Kim, HS Kim, SB Kim, SH Kim, YK Kim, L Kirsch, P Koehn, K Kondo, J Konigsberg, S Kopp, K Kordas, W Koska, E Kovacs, W Kowald, M Krasberg, J Kroll, M Kruse, SE Kuhlmann, E Kuns, AT Laasanen, S Lammel, JI Lamoureux, T LeCompte, S Leone, JD Lewis, P Limon, M Lindgren, TM Liss, N Lockyer, C Loomis, O Long, M Loreti, EH Low, J Lu, D Lucchesi, CB Luchini, P Lukens, P Maas, K Maeshima, A Maghakian, P Maksimovic, M Mangano, J Mansour, M Mariotti, JP Marriner, A Martin, JAJ Matthews, R Mattingly, P McIntyre, P Melese, A Menzione, E Meschi, G Michail, S Mikamo, M Miller, R Miller, T Mimashi, S Miscetti, M Mishina, H Mitsushio, S Miyashita, Y Morita, S Moulding, J Mueller, A Mukherjee, T Muller, P Musgrave, LF Nakae, I Nakano, C Nelson, D Neuberger, C Newman-Holmes, L Nodulman, S Ogawa, SH Oh, KE Ohl, R Oishi, T Okusawa, C Pagliarone, R Paoletti, V Papadimitriou, S Park, J Patrick, G Pauletta, M Paulini, L Pescara, MD Peters, TJ Phillips, G Piacentino, M Pillai, R Plunkett, L Pondrom, N Produit, J Proudfoot, F Ptohos, G Punzi, K Ragan, F Rimondi, L Ristori, M Roach-Bellino, WJ Robertson, T Rodrigo, J Romano, L Rosenson, WK Sakumoto, D Saltzberg, A Sansoni, V Scarpine, A Schindler, P Schlabach, EE Schmidt, MP Schmidt, O Schneider, GF Sciacca, A Scribano, S Segler, S Seidel, Y Seiya, G Sganos, A Sgolacchia, M Shapiro, NM Shaw, Q Shen, PF Shepard, M Shimojima, M Shochet, J Siegrist, A Sill, P Sinervo, P Singh, J Skarha, K Sliwa, DA Smith, FD Snider, L Song, T Song, J Spalding, L Spiegel, P Sphicas, A Spies, L Stanco, J Steele, A Stefanini, K Strahl, J Strait, D Stuart, G Sullivan, K Sumorok, RL Swartz, T Takahashi, K Takikawa, F Tartarelli, W Taylor, Y Teramoto, S Tether, D Theriot, J Thomas, TL Thomas, R Thun, M Timko, P Tipton, A Titov, S Tkaczyk, K Tollefson, A Tollestrup, J Tonnison, JF de Troconiz, J Tseng, M Turcotte, N Turini, N Uemura, F Ukegawa, G Unal, S van den Brink, S Vejcik, R Vidal, M Vondracek, RG Wagner, RL Wagner, N Wainer, RC Walker, G Wang, J Wang, MJ Wang, QF Wang, A Warburton, G Watts, T Watts, R Webb, C Wendt, H Wenzel, WC Wester, T Westhusing, AB Wicklund, E Wicklund, R Wilkinson, HH Williams, P Wilson, BL Winer, J Wolinski, DY Wu, X Wu, J Wyss, A Yagil, W Yao, K Yasuoka, Y Ye, GP Yeh, P Yeh, M Yin, J Yoh, T Yoshida, D Yovanovitch, I Yu, JC Yun, A Zanetti, F Zetti, L Zhang, S Zhang, W Zhang, S Zucchelli
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Search for the Top Quark Decaying to a Charged Higgs Boson in p¯p Collisions at s=1.8 TeV

Physical Review Letters American Physical Society (APS) 73:20 (1994) 2667-2671

Authors:

F Abe, MG Albrow, D Amidei, J Antos, C Anway-Wiese, G Apollinari, H Areti, M Atac, P Auchincloss, F Azfar, P Azzi, N Bacchetta, W Badgett, MW Bailey, J Bao, P de Barbaro, A Barbaro-Galtieri, VE Barnes, BA Barnett, P Bartalini, G Bauer, T Baumann, F Bedeschi, S Behrends, S Belforte, G Bellettini, J Bellinger, D Benjamin, J Benlloch, J Bensinger, D Benton, A Beretvas, JP Berge, S Bertolucci, A Bhatti, K Biery, M Binkley, F Bird, D Bisello, RE Blair, C Blocker, A Bodek, V Bolognesi, D Bortoletto, C Boswell, T Boulos, G Brandenburg, E Buckley-Geer, HS Budd, K Burkett, G Busetto, A Byon-Wagner, KL Byrum, J Cammerata, C Campagnari, M Campbell, A Caner, W Carithers, D Carlsmith, A Castro, Y Cen, F Cervelli, J Chapman, M-T Cheng, G Chiarelli, T Chikamatsu, S Cihangir, AG Clark, M Cobal, M Contreras, J Conway, J Cooper, M Cordelli, D Crane, JD Cunningham, T Daniels, F DeJongh, S Delchamps, S Dell' Agnello, M Dell'Orso, L Demortier, B Denby, M Deninno, PF Derwent, T Devlin, M Dickson, S Donati, RB Drucker, A Dunn, K Einsweiler, JE Elias, R Ely, E Engels, S Eno, D Errede, S Errede, Q Fan, B Farhat, I Fiori, B Flaugher, GW Foster, M Franklin, M Frautschi, J Freeman, J Friedman, H Frisch, A Fry, TA Fuess, Y Fukui, S Funaki, G Gagliardi, S Galeotti, M Gallinaro, AF Garfinkel, S Geer, DW Gerdes, P Giannetti, N Giokaris, P Giromini, L Gladney, D Glenzinski, M Gold, J Gonzalez, A Gordon, AT Goshaw, K Goulianos, H Grassmann, A Grewal, G Grieco, L Groer, C Grosso-Pilcher, C Haber, SR Hahn, R Hamilton, R Handler, RM Hans, K Hara, B Harral, RM Harris, SA Hauger, J Hauser, C Hawk, J Heinrich, D Cronin-Hennessy, R Hollebeek, L Holloway, A Hölscher, S Hong, G Houk, P Hu, BT Huffman, R Hughes, P Hurst, J Huston, J Huth, J Hylen, M Incagli, J Incandela, H Iso, H Jensen, CP Jessop, U Joshi, RW Kadel, E Kajfasz, T Kamon, T Kaneko, DA Kardelis, H Kasha, Y Kato, L Keeble, RD Kennedy, R Kephart, P Kesten, D Kestenbaum, RM Keup, H Keutelian, F Keyvan, DH Kim, HS Kim, SB Kim, SH Kim, YK Kim, L Kirsch, P Koehn, K Kondo, J Konigsberg, S Kopp, K Kordas, W Koska, E Kovacs, W Kowald, M Krasberg, J Kroll, M Kruse, SE Kuhlmann, E Kuns, AT Laasanen, S Lammel, JI Lamoureux, T LeCompte, S Leone, JD Lewis, P Limon, M Lindgren, TM Liss, N Lockyer, O Long, C Loomis, M Loreti, EH Low, J Lu, D Lucchesi, CB Luchini, P Lukens, P Maas, K Maeshima, A Maghakian, P Maksimovic, M Mangano, J Mansour, M Mariotti, JP Marriner, A Martin, JAJ Matthews, R Mattingly, P McIntyre, P Melese, A Menzione, E Meschi, G Michail, S Mikamo, M Miller, R Miller, T Mimashi, S Miscetti, M Mishina, H Mitsushio, S Miyashita, Y Morita, S Moulding, J Mueller, A Mukherjee, T Muller, P Musgrave, LF Nakae, I Nakano, C Nelson, D Neuberger, C Newman-Holmes, L Nodulman, S Ogawa, SH Oh, KE Ohl, R Oishi, T Okusawa, C Pagliarone, R Paoletti, V Papadimitriou, S Park, J Patrick, G Pauletta, M Paulini, L Pescara, MD Peters, TJ Phillips, G Piacentino, M Pillai, R Plunkett, L Pondrom, N Produit, J Proudfoot, F Ptohos, G Punzi, K Ragan, F Rimondi, L Ristori, M Roach-Bellino, WJ Robertson, T Rodrigo, J Romano, L Rosenson, WK Sakumoto, D Saltzberg, A Sansoni, V Scarpine, A Schindler, P Schlabach, EE Schmidt, MP Schmidt, O Schneider, GF Sciacca, A Scribano, S Segler, S Seidel, Y Seiya, G Sganos, A Sgolacchia, M Shapiro, NM Shaw, Q Shen, PF Shepard, M Shimojima, M Shochet, J Siegrist, A Sill, P Sinervo, P Singh, J Skarha, K Sliwa, DA Smith, FD Snider, L Song, T Song, J Spalding, L Spiegel, P Sphicas, A Spies, L Stanco, J Steele, A Stefanini, K Strahl, J Strait, D Stuart, G Sullivan, K Sumorok, RL Swartz, T Takahashi, K Takikawa, F Tartarelli, W Taylor, Y Teramoto, S Tether, D Theriot, J Thomas, TL Thomas, R Thun, M Timko, P Tipton, A Titov, S Tkaczyk, K Tollefson, A Tollestrup, J Tonnison, JF de Troconiz, J Tseng, M Turcotte, N Turini, N Uemura, F Ukegawa, G Unal, S van den Brink, S Vejcik, R Vidal, M Vondracek, RG Wagner, RL Wagner, N Wainer, RC Walker, G Wang, J Wang, MJ Wang, QF Wang, A Warburton, G Watts, T Watts, R Webb, C Wendt, H Wenzel, WC Wester, T Westhusing, AB Wicklund, E Wicklund, R Wilkinson, HH Williams, P Wilson, BL Winer, J Wolinski, DY Wu, X Wu, J Wyss, A Yagil, W Yao, K Yasuoka, Y Ye, GP Yeh, P Yeh, M Yin, J Yoh, T Yoshida, D Yovanovitch, I Yu, JC Yun, A Zanetti, F Zetti, L Zhang, S Zhang, W Zhang, S Zucchelli
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Comparison of energy flows in deep inelastic scattering events with and without a large rapidity gap

Physics Letters B 338:4 (1994) 483-496

Authors:

M Derrick, D Krakauer, S Magill, B Musgrave, J Repond, J Schlereth, R Stanek, RL Talaga, J Thron, F Arzarello, R Ayad, G Bari, M Basile, L Bellagamba, D Boscherini, A Bruni, G Bruni, P Bruni, GC Romeo, G Castellini, M Chiarini, L Cifarelli, F Cindolo, F Ciralli, A Contin, S D'Auria, C Del Papa, F Frasconi, P Giusti, G Iacobucci, G Laurenti, G Levi, G Maccarrone, A Margotti, T Massam, R Nania, C Nemoz, F Palmonari, A Polini, G Sartorelli, R Timellini, YZ Garcia, A Zichichi, A Bargende, J Crittenden, K Desch, B Diekmann, T Doeker, L Feld, A Frey, M Geerts, G Geitz, M Grothe, H Hartmann, D Haun, K Heinloth, E Hilger, HP Jakob, UF Katz, SM Mari, A Mass, S Mengel, J Mollen, E Paul, C Rembser, R Schattevoy, JL Schneider, D Schramm, J Stamm, R Wedemeyer, S Campbell-Robson, A Cassidy, N Dyce, B Foster, S George, R Gilmore, GP Heath, HF Heath, TJ Llewellyn, CJS Morgado, DJP Norman, JA O'Mara, RJ Tapper, SS Wilson, R Yoshida, RR Rau, M Arneodo, L Iannotti, M Schioppa, G Susinno, A Bernstein, A Caldwell, I Gialas, JA Parsons, S Ritz, F Sciulli, PB Straub, L Wai, S Yang, P Borzemski

Abstract:

Energy flows in deep inelastic electron-proton scattering are investigated at a centre-of-mass energy of 269 GeV for the range Q2 ≥ 10 GeV2 using the ZEUS detector. A comparison is made between events with and without a large rapidity gap between the hadronic system and the proton direction. The energy flows, corrected for detector acceptance and resolution, are shown for these two classes of events in both the HERA laboratory frame and the Breit frame. From the differences in the shapes of these energy flows we conclude that QCD radiation is suppressed in the large-rapidity-gap eents compared to the events without a large rapidity gap. © 1994.
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