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Search for heavy W bosons in 1.8 TeV pp collisions

Physics Letters B 358:3-4 (1995) 405-411

Authors:

S Abachi, B Abbott, M Abolins, BS Acharya, I Adam, DL Adams, M Adams, S Ahn, H Aihara, J Alitti, G Álvarez, GA Alves, E Amidi, N Amos, EW Anderson, SH Aronson, R Astur, RE Avery, A Baden, V Balamurali, J Balderston, B Baldin, J Bantly, JF Bartlett, K Bazizi, J Bendich, SB Beri, I Bertram, VA Bezzubov, PC Bhat, V Bhatnagar, M Bhattacharjee, A Bischoff, N Biswas, G Blazey, S Blessing, P Bloom, A Boehnlein, NI Bojko, F Borcherding, J Borders, C Boswell, A Brandt, R Brock, A Bross, D Buchholz, VS Burtovoi, JM Butler, D Casey, H Castilla-Valdez, D Chakraborty, SM Chang, SV Chekulaev, LP Chen, W Chen, L Chevalier, S Chopra, BC Choudhary, JH Christenson, M Chung, D Claes, AR Clark, WG Cobau, J Cochran, WE Cooper, C Cretsinger, D Cullen-Vidal, MAC Cummings, D Cutts, OI Dahl, K De, M Demarteau, R Demina, K Denisenko, N Denisenko, D Denisov, SP Denisov, W Dharmaratna, HT Diehl, M Diesburg, G Di Loreto, R Dixon, P Draper, J Drinkard, Y Ducros, SR Dugad, S Durston-Johnson, D Edmunds, J Ellison, VD Elvira, R Engelmann, S Eno, G Eppley, P Ermolov, OV Eroshin, VN Evdokimov, S Fahey, T Fahland, M Fatyga, MK Fatyga

Abstract:

A search for a heavy charged gauge boson, W′, using the decay channels W′ → eν and W′ → τν → eννν is reported. The data used in the analysis were collected by the DØ experiment at the Fermilab Tevatron during the 1992-93 pp collider run from an integrated luminosity of 13.9 ± 0.8 pb-1 at s=1.8 TeV. Assuming that the neutrino from W′ decay is stable and has a mass significantly less than mW′, an upper limit at the 95% confidence level is set on the cross section times branching ratio for pp → W′ → eν. A W′ with the same couplings to quarks and leptons as the standard model W boson is excluded for mW′ < 610 GeV/c2. © 1995.
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Measurement of $σ\cdot B (W \to e ν)$ and $σ\cdot B(Z^0 \to e^+e^-)$ in $p {\bar p}$ collisions at $\sqrt{s}=1.8$ TeV

ArXiv hep-ex/9509010 (1995)
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Transverse energy distributions within jets in pp collisions at s=1.8 TeV

Physics Letters B 357:3 (1995) 500-508

Authors:

S Abachi, B Abbott, M Abolins, BS Acharya, I Adam, DL Adams, M Adams, S Ahn, H Aihara, J Alitti, G Álvarez, GA Alves, E Amidi, N Amos, EW Anderson, SH Aronson, R Astur, RE Avery, A Baden, V Balamurali, J Balderston, B Baldin, J Bantly, JF Bartlett, K Bazizi, J Bendich, SB Beri, I Bertram, VA Bezzubov, PC Bhat, V Bhatnagar, M Bhattacharjee, A Bischoff, N Biswas, G Blazey, S Blessing, P Bloom, A Boehnlein, NI Bojko, F Borcherding, J Borders, C Boswell, A Brandt, R Brock, A Bross, D Buchholz, VS Burtovoi, JM Butler, D Casey, H Castilla-Valdez, D Chakraborty, SM Chang, SV Chekulaev, LP Chen, W Chen, L Chevalier, S Chopra, BC Choudhary, JH Christenson, M Chung, D Claes, AR Clark, WG Cobau, J Cochran, WE Cooper, C Cretsinger, D Cullen-Vidal, MAC Cummings, D Cutts, OI Dahl, K De, M Demarteau, R Demina, K Denisenko, N Denisenko, D Denisov, SP Denisov, W Dharmaratna, HT Diehl, M Diesburg, G Di Loreto, R Dixon, P Draper, J Drinkard, Y Ducros, SR Dugad, S Durston-Johnson, D Edmunds, J Ellison, VD Elvira, R Engelmann, S Eno, G Eppley, P Ermolov, OV Eroshin, VN Evdokimov, S Fahey, T Fahland, M Fatyga, MK Fatyga

Abstract:

The distribution of the transverse energy in jets has been measured in pp collisions at s=1.8 TeV TeV using the DØ detector at Fermilab. This measurement of the jet shape is made as a function of jet transverse energy in both the central and forward rapidity regions. Jets are shown to narrow both with increasing transverse energy and with increasing rapidity. Next-to-leading order partonic QCD calculations are compared to the data. Although the calculations qualitatively describe the data, they are shown to be very dependent on renormalization scale, parton clustering algorithm, and jet direction definition and they fail to describe the data in all regions consistently. © 1995.
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Identification of top quarks using kinematic variables

Physical Review D American Physical Society (APS) 52:5 (1995) r2605-r2609

Authors:

F Abe, H Akimoto, A Akopian, MG Albrow, SR Amendolia, D Amidei, J Antos, C Anway-Wiese, S Aota, G Apollinari, T Asakawa, W Ashmanskas, M Atac, P Auchincloss, 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, 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, D Bisello, RE Blair, C Blocker, A Bodek, W Bokhari, V Bolognesi, D Bortoletto, J Boudreau, G Brandenburg, L Breccia, 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, D Cauz, 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, D Cronin-Hennessy, R Culbertson, 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, N Eddy, K Einsweiler, JE Elias, R Ely, E Engels, D Errede, S Errede, Q Fan, I Fiori, B Flaugher, GW Foster, M Franklin, M Frautschi, J Freeman, J Friedman, H Frisch, TA Fuess, Y Fukui, S Funaki, G Gagliardi, S Galeotti, M Gallinaro, M Garcia-Sciveres, AF Garfinkel, C Gay, 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, L Groer, C Grosso-Pilcher, G Guillian, RS Guo, C Haber, SR Hahn, R Hamilton, R Handler, RM Hans, K Hara, B Harral, RM Harris, SA Hauger, J Hauser, C Hawk, E Hayashi, J Heinrich, M Hohlmann, C Holck, R Hollebeek, L Holloway, A Ho, S Hong, G Houk, P Hu, BT Huffman, R Hughes, J Huston, J Huth, J Hylen, H Ikeda, M Incagli, J Incandela, J Iwai, Y Iwata, H Jensen, U Joshi, RW Kadel, E Kajfasz, T Kamon, T Kaneko, K Karr, H Kasha, Y Kato, L Keeble, K Kelley, RD Kennedy, R Kephart, P Kesten, D Kestenbaum, RM Keup, H Keutelian, F Keyvan, BJ Kim, 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, T Kuwabara, 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, O Long, C Loomis, M Loreti, J Lu, D Lucchesi, P Lukens, S Lusin, J Lys, 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, S Metzler, C Miao, G Michail, S Mikamo, R Miller, H Minato, S Miscetti, M Mishina, H Mitsushio, T Miyamoto, S Miyashita, Y Morita, J Mueller, A Mukherjee, T Muller, P Murat, H Nakada, I Nakano, C Nelson, D Neuberger, C Newman-Holmes, M Ninomiya, L Nodulman, S Ogawa, SH Oh, KE Ohl, T Ohmoto, T Ohsugi, R Oishi, M Okabe, T Okusawa, R Oliver, J Olsen, 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, KT Pitts, R Plunkett, L Pondrom, J Proudfoot, F Ptohos, G Punzi, K Ragan, A Ribon, F Rimondi, L Ristori, WJ Robertson, T Rodrigo, J Romano, L Rosenson, R Roser, WK Sakumoto, D Saltzberg, L Santi, H Sato, V Scarpine, P Schlabach, EE Schmidt, MP Schmidt, GF Sciacca, A Scribano, S Segler, S Seidel, Y Seiya, G Sganos, A Sgolacchia, MD 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, T Song, J Spalding, P Sphicas, L Spiegel, A Spies, L Stanco, J Steele, A Stefanini, K Strahl, J Strait, D Stuart, G Sullivan, A Soumarokov, K Sumorok, J Suzuki, T Takada, T Takahashi, T Takano, K Takikawa, N Tamura, F Tartarelli, W Taylor, PK Teng, Y Teramoto, S Tether, D Theriot, TL Thomas, R Thun, M Timko, P Tipton, A Titov, S Tkaczyk, D Toback, K Tollefson, A Tollestrup, J Tonnison, JF de Troconiz, S Truitt, J Tseng, N Turini, T Uchida, N Uemura, F Ukegawa, G Unal, SC van den Brink, S Vejcik, G Velev, R Vidal, M Vondracek, D Vucinic, RG Wagner, RL Wagner, J Wahl, 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, AB Wicklund, E Wicklund, R Wilkinson, HH Williams, P Wilson, BL Winer, D Wolinski, J Wolinski, 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, W Zhang, S Zucchelli
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Measurement of the proton structure function F2 from the 1993 HERA data

Zeitschrift Fur Physik C Particles and Fields 65:3 (1995) 379-398

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, G Cara Romeo, G Castellini, M Chiarini, L Cifarelli, F Cindolo, F Ciralli, A Contin, S D'Auria, F Frasconi, P Giusti, G Iacobucci, G Laurenti, G Levi, A Margotti, T Massam, R Nania, C Nemoz, F Palmonari, A Polini, G Sartorelli, R Timellini, Y Zamora 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, J Chwastowski, A Eskreys

Abstract:

The ZEUS detector has been used to measure the proton structure function F2. During 1993 HERA collided 26.7 GeV electrons on 820 GeV protons. The data sample corresponds to an integrated luminosity of 0.54 pb-1, representing a twenty fold increase in statistics compared to that of 1992. Results are presented for 72<104 GeV2 and x values as low as 3×10-4. The rapid rise in F2 as x decreases observed previously is now studied in greater detail and persists for Q2 values up to 500 GeV2. © 1995 Springer-Verlag.
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