Event shape analysis of deep inelastic scattering events with a large rapidity gap at HERA

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 421:1-4 (1998) 368-384

Authors:

J Breitweg, M Derrick, D Krakauer, S Magill, D Mikunas, B Musgrave, J Repond, R Stanek, RL Talaga, R Yoshida, H Zhang, MCK Mattingly, F Anselmo, P Antonioli, G Bari, M Basile, L Bellagamba, D Boscherini, A Bruni, G Bruni, G Cara Romeo, G Castellini, L Cifarelli, F Cindolo, A Contin, M Corradi, S de Pasquale, I Gialas, P Giusti, G Iacobucci, G Laurenti, G Levi, A Margotti, T Massam, R Nania, F Palmonari, A Pesci, A Polini, F Ricci, G Sartorelli, Y Zamora Garcia, A Zichichi, C Amelung, A Bornheim, I Brock, K Coböken, J Crittenden, R Deffner, M Eckert, M Grothe, H Hartmann, K Heinloth, L Heinz, E Hilger, HP Jakob, UF Katz, R Kerger, E Paul, M Pfeiffer, C Rembser, J Stamm, R Wedemeyer, H Wieber, DS Bailey, S Campbell-Robson, WN Cottingham, B Foster, R Hall-Wilton, ME Hayes, GP Heath, HF Heath, JD McFall, D Piccioni, DG Roff, RJ Tapper, M Arneodo, R Ayad, M Capua, A Garfagnini, L Iannotti, M Schioppa, G Susinno, JY Kim, JH Lee, IT Lim, MY Pac, A Caldwell, N Cartiglia, Z Jing, W Liu, B Mellado, JA Parsons, S Ritz, S Sampson, F Sciulli, PB Straub, Q Zhu, P Borzemski, J Chwastowski, A Eskreys

Abstract:

A global event shape analysis of the multihadronic final states observed in neutral current deep inelastic scattering events with a large rapidity gap with respect to the proton direction is presented. The analysis is performed in the range 5 ≤ Q2 ≤ 185 GeV2 and 160 ≤ W ≤ 250 GeV, where Q2 is the virtuality of the photon and W is the virtual-photon proton centre of mass energy. Particular emphasis is placed on the dependence of the shape variables, measured in the γ * -pomeron rest frame, on the mass of the hadronic final state, MX. With increasing MX the multihadronic final state becomes more collimated and planar. The experimental results are compared with several models which attempt to describe diffractive events. The broadening effects exhibited by the data require in these models a significant gluon component of the pomeron. © 1998 Elsevier Science B.V.

Measurement of the top quark mass and top-antitop production cross section from dilepton events at the Collider Detector at Fermilab

ArXiv hep-ex/9802017 (1998)

Dijet Production by Color-Singlet Exchange at the Fermilab Tevatron

Physical Review Letters American Physical Society (APS) 80:6 (1998) 1156-1161

Authors:

F Abe, H Akimoto, A Akopian, MG Albrow, SR Amendolia, D Amidei, J Antos, S Aota, G Apollinari, T Arisawa, T Asakawa, W Ashmanskas, M Atac, F Azfar, P Azzi-Bacchetta, N Bacchetta, W Badgett, S Bagdasarov, MW Bailey, J Bao, P de Barbaro, A Barbaro-Galtieri, VE Barnes, BA Barnett, M Barone, E Barzi, 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, J Berryhill, S Bertolucci, S Bettelli, B Bevensee, A Bhatti, K Biery, M Binkley, D Bisello, RE Blair, C Blocker, S Blusk, A Bodek, W Bokhari, G Bolla, V Bolognesi, Y Bonushkin, D Bortoletto, J Boudreau, L Breccia, C Bromberg, N Bruner, E Buckley-Geer, HS Budd, K Burkett, G Busetto, A Byon-Wagner, KL Byrum, C Campagnari, M Campbell, A Caner, W Carithers, D Carlsmith, J Cassada, A Castro, D Cauz, Y Cen, A Cerri, F Cervelli, PS Chang, PT Chang, HY Chao, J Chapman, M-T Cheng, M Chertok, G Chiarelli, T Chikamatsu, CN Chiou, L Christofek, S Cihangir, AG Clark, M Cobal, E Cocca, M Contreras, J Conway, J Cooper, M Cordelli, C Couyoumtzelis, D Crane, D Cronin-Hennessy, R Culbertson, T Daniels, F DeJongh, S Delchamps, S Dell'Agnello, M Dell'Orso, R Demina, L Demortier, M Deninno, PF Derwent, T Devlin, JR Dittmann, S Donati, J Done, T Dorigo, A Dunn, N Eddy, K Einsweiler, JE Elias, R Ely, E Engels, D Errede, S Errede, Q Fan, G Feild, Z Feng, C Ferretti, I Fiori, B Flaugher, GW Foster, M Franklin, M Frautschi, J Freeman, J Friedman, H Frisch, Y Fukui, S Funaki, S Galeotti, M Gallinaro, O Ganel, M Garcia-Sciveres, AF Garfinkel, C Gay, S Geer, DW Gerdes, P Giannetti, N Giokaris, G Giusti, L Gladney, M Gold, J Gonzalez, A Gordon, AT Goshaw, Y Gotra, K Goulianos, H Grassmann, L Groer, C Grosso-Pilcher, G Guillian, J Guimarães, RS Guo, C Haber, E Hafen, SR Hahn, R Hamilton, R Handler, RM Hans, F Happacher, K Hara, AD Hardman, B Harral, RM Harris, SA Hauger, J Hauser, C Hawk, E Hayashi, J Heinrich, B Hinrichsen, KD Hoffman, M Hohlmann, C Holck, R Hollebeek, L Holloway, S Hong, G Houk, P Hu, BT Huffman, R Hughes, J Huston, J Huth, J Hylen, H Ikeda, M Incagli, J Incandela, G Introzzi, J Iwai, Y Iwata, H Jensen, U Joshi, RW Kadel, E Kajfasz, H Kambara, T Kamon, T Kaneko, K Karr, H Kasha, Y Kato, TA Keaffaber, K Kelley, RD Kennedy, R Kephart, P Kesten, D Kestenbaum, H Keutelian, F Keyvan, B Kharadia, BJ Kim, DH Kim, HS Kim, SB Kim, SH Kim, YK Kim, L Kirsch, P Koehn, A Köngeter, K Kondo, J Konigsberg, S Kopp, K Kordas, A Korytov, W Koska, E Kovacs, W Kowald, M Krasberg, J Kroll, M Kruse, SE Kuhlmann, E Kuns, T Kuwabara, AT Laasanen, S Lami, S Lammel, JI Lamoureux, M Lancaster, M Lanzoni, G Latino, T LeCompte, S Leone, JD Lewis, P Limon, M Lindgren, TM Liss, JB Liu, YC Liu, N Lockyer, O Long, C Loomis, M Loreti, J Lu, D Lucchesi, P Lukens, S Lusin, J Lys, K Maeshima, A Maghakian, P Maksimovic, M Mangano, M Mariotti, JP Marriner, A Martin, JAJ Matthews, R Mattingly, P Mazzanti, P McIntyre, P Melese, A Menzione, E Meschi, C Mesropian, S Metzler, C Miao, T Miao, G Michail, R Miller, H Minato, S Miscetti, M Mishina, H Mitsushio, T Miyamoto, S Miyashita, N Moggi, Y Morita, A Mukherjee, T Muller, P Murat, S Murgia, H Nakada, I Nakano, C Nelson, D Neuberger, C Newman-Holmes, C-YP Ngan, M Ninomiya, L Nodulman, SH Oh, KE Ohl, T Ohmoto, T Ohsugi, R Oishi, M Okabe, T Okusawa, R Oliveira, J Olsen, C Pagliarone, R Paoletti, V Papadimitriou, SP Pappas, N Parashar, S Park, A Parri, J Patrick, G Pauletta, M Paulini, A Perazzo, L Pescara, MD Peters, TJ Phillips, G Piacentino, M Pillai, KT Pitts, R Plunkett, L Pondrom, J Proudfoot, F Ptohos, G Punzi, K Ragan, D Reher, A Ribon, F Rimondi, L Ristori, WJ Robertson, T Rodrigo, S Rolli, J Romano, L Rosenson, R Roser, T Saab, WK Sakumoto, D Saltzberg, A Sansoni, L Santi, H Sato, P Schlabach, EE Schmidt, MP Schmidt, A Scott, A Scribano, S Segler, S Seidel, Y Seiya, F Semeria, G Sganos, T Shah, MD Shapiro, NM Shaw, Q Shen, PF Shepard, M Shimojima, M Shochet, J Siegrist, A Sill, P Sinervo, P Singh, K Sliwa, C Smith, FD Snider, T Song, J Spalding, T Speer, P Sphicas, F Spinella, M Spiropulu, L Spiegel, L Stanco, J Steele, A Stefanini, J Strait, R Ströhmer, D Stuart, G Sullivan, K Sumorok, J Suzuki, T Takada, T Takahashi, T Takano, K Takikawa, N Tamura, B Tannenbaum, F Tartarelli, W Taylor, PK Teng, Y Teramoto, S Tether, D Theriot, TL Thomas, R Thun, R Thurman-Keup, M Timko, P Tipton, A Titov, S Tkaczyk, D Toback, K Tollefson, A Tollestrup, H Toyoda, W Trischuk, JF de Troconiz, S Truitt, J Tseng, N Turini, T Uchida, N Uemura, F Ukegawa, G Unal, J Valls, SC van den Brink, S Vejcik, G Velev, R Vidal, R Vilar, M Vondracek, D Vucinic, RG Wagner, RL Wagner, J Wahl, NB Wallace, AM Walsh, C Wang, CH Wang, J Wang, MJ Wang, QF Wang, A Warburton, T Watts, R Webb, C Wei, H Wei, H Wenzel, WC Wester, AB Wicklund, E Wicklund, R Wilkinson, HH Williams, P Wilson, BL Winer, D Winn, D Wolinski, J Wolinski, S Worm, X Wu, J Wyss, A Yagil, W Yao, K Yasuoka, Y Ye, GP Yeh, P Yeh, M Yin, J Yoh, C Yosef, T Yoshida, D Yovanovitch, I Yu, L Yu, JC Yun, A Zanetti, F Zetti, L Zhang, W Zhang, S Zucchelli

Jet pseudorapidity distribution in direct photon events in pp¯ collisions at s=1.8 TeV

Physical Review D American Physical Society (APS) 57:3 (1998) 1359-1365

Authors:

F Abe, MG Albrow, SR Amendolia, 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, W Bokhari, V Bolognesi, D Bortoletto, C Boswell, T Boulos, G Brandenburg, C Bromberg, 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, HY Chao, J Chapman, M-T Cheng, G Chiarelli, T Chikamatsu, CN Chiou, L Christofek, S Cihangir, AG Clark, M Cobal, M Contreras, J Conway, J Cooper, M Cordelli, C Couyoumtzelis, 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, JR Dittmann, 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, 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, N Labanca, 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, J Lys, 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, SP Pappas, 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, 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, PK Teng, 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, SC van den Brink, S Vejcik, R Vidal, M Vondracek, D Vucinic, RG Wagner, RL Wagner, N Wainer, RC Walker, C Wang, CH Wang, G Wang, J Wang, MJ Wang, QF Wang, A Warburton, G Watts, T Watts, R Webb, C Wei, 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, C Yosef, T Yoshida, D Yovanovitch, I Yu, JC Yun, A Zanetti, F Zetti, L Zhang, S Zhang, W Zhang, S Zucchelli

Searches for New Physics in Diphoton Events in proton anti-proton collisions at sqrt(s)=1.8TeV

ArXiv hep-ex/9801019 (1998)

Authors:

CDF Collaboration, F Abe et al