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Kinematics of tt¯ events at CDF

Physical Review D American Physical Society (APS) 59:9 (1999) 092001

Authors:

F Abe, H Akimoto, A Akopian, MG Albrow, A Amadon, SR Amendolia, D Amidei, J Antos, S Aota, G Apollinari, T Arisawa, T Asakawa, W Ashmanskas, M Atac, P Azzi-Bacchetta, N Bacchetta, S Bagdasarov, MW Bailey, P de Barbaro, A Barbaro-Galtieri, VE Barnes, BA Barnett, M Barone, G Bauer, T Baumann, F Bedeschi, S Behrends, S Belforte, G Bellettini, J Bellinger, D Benjamin, J Bensinger, A Beretvas, JP Berge, J Berryhill, S Bertolucci, S Bettelli, B Bevensee, A Bhatti, K Biery, C Bigongiari, M Binkley, D Bisello, RE Blair, C Blocker, K Bloom, S Blusk, A Bodek, W Bikhari, G Bolla, Y Bonushkin, D Bortoletto, J Boudreau, L Breccia, C Bromberg, N Bruner, R Brunetti, E Buckley-Geer, HS Budd, K Burkett, G Busetto, A Byon-Wagner, KL Byrum, M Campbell, A Caner, W Carithers, D Carlsmith, J Cassada, A Castro, D Cauz, A Cerri, PS Chang, PT Chang, HY Chao, J Chapman, M-T Cheng, M Chertok, G Chiarelli, CN Chiou, F Chlebana, L Christofek, R Cropp, ML Chu, S Cihangir, AG Clark, M Cobal, E Cocca, M Contreras, J Conway, J Cooper, M Cordelli, D Costanzo, C Couyoumtzelis, D Cronin-Hennessy, R Culbertson, D Dagenhart, T Daniels, F DeJongh, S Dell’Agnello, M Dell’Orso, R Demina, L Demortier, M Deninno, PF Derwent, T Devlin, JR Dittmann, S Donati, J Done, T Dorigo, N Eddy, K Einsweiler, JE Elias, R Ely, E Engels, W Erdmann, D Errede, S Errede, Q Fan, RG Feild, Z Feng, C Ferretti, I Fiori, B Flaugher, GW Foster, M Franklin, J Freeman, J Friedman, H Frisch, Y Fukui, S Gadomski, S Galeotti, M Gallinaro, O Ganel, M Garcia-Sciveres, AF Garfinkel, C Gay, S Geer, DW Gerdes, P Giannetti, N Giokaris, P Giromini, G Giusti, M Gold, A Gordon, AT Goshaw, Y Gotra, K Goulianos, H Grassmann, C Green, L Groer, C Grosso-Pilcher, G Guillian, J Guimaraes da Costa, RS Guo, C Haber, E Hafen, SR Hahn, R Hamilton, T Handa, R Handler, W Hao, F Happacher, K Hara, AD Hardman, RM Harris, F Hartmann, J Hausser, E Hayashi, J Heinrich, A Heiss, B Hinrichsen, KD Hoffman, C Holck, R Hollebeek, L Holloway, Z Huang, BT Huffman, R Hughes, J Huston, J Huth, H Ikeda, M Incagli, J Incandela, G Introzzi, J Iwai, Y Iwata, E James, H Jensen, U Joshi, E Kajfasz, H Kambara, T Kamon, T Kaneko, K Karr, H Kasha, Y Kato, TA Keaffaber, K Kelley, RD Kennedy, R Kephart, D Kestenbaum, D Khazins, T Kikuchi, BJ Kim, HS Kim, SH Kim, YK Kim, L Kirsch, S Klimenko, D Knoblauch, P Koehn, A Köngeter, K Kondo, J Konigsberg, K Kordas, A Korytov, E Kovacs, W Kowald, J Kroll, M Kruse, SE Kuhlmann, E Kuns, K Kurino, T Kuwabara, AT Laasanen, S Lami, S Lammel, JI Lamoureux, M Lancaster, M Lanzoni, G Latino, T LeCompte, S Leone, JD Lewis, M Lindgren, TM Liss, JB Liu, YC Liu, N Lockyer, O Long, M Loreti, D Lucchesi, P Lukens, S Lusin, J Lys, K Maeshima, P Maksimovic, M Mangano, M Mariotti, JP Marriner, G Martignon, A Martin, JAJ Matthews, P Mazzanti, K McFarland, P McIntyre, P Melese, M Menguzzato, A Menzione, E Meschi, S Metzler, C Miao, T Miao, G Michail, R Miller, H Minato, S Miscetti, M Mishina, S Miyashita, N Moggi, E Moore, Y Morita, A Mukherjee, T Muller, A Munar, P Murat, S Murgia, M Musy, H Nakada, T Nakaya, I Nakano, C Nelson, D Neuberger, C Newman-Holmes, C-YP Ngan, L Nodulman, A Nomerotski, SH Oh, T Ohmoto, T Ohsugi, R Oishi, M Okabe, T Okusawa, J Olsen, C Pagliarone, R Paoletti, V Papadimitriou, SP Pappas, N Parashar, A Parri, J Patrick, G Pauletta, M Paulini, A Perazzo, L Pescara, MD Peters, TJ Phillips, G Piacentino, M Pillai, KT Pitts, R Plunkett, A Pompos, L Pondrom, J Proudfoot, F Ptohos, G Punzi, K Ragan, D Reher, M Reischl, A Ribon, F Rimondi, L Ristori, WJ Robertson, A Robinson, T Rodrigo, S Rolli, 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, T Shah, MD Shapiro, NM Shaw, PF Shepard, T Shibayama, M Shimojima, M Shochet, J Siegrist, A Sill, P Sinervo, P Singh, K Sliwa, C Smith, FD Snider, J Spalding, T Speer, P Sphicas, F Spinella, M Spiropulu, L Spiegel, L Stanco, J Steele, A Stefanini, R Ströhmer, J Strologas, F Strumia, D Stuart, K Sumorok, J Suzuki, T Suzuki, T Takahashi, T Takano, R Takashima, K Takikawa, M Tanaka, B Tannenbaum, F Tartarelli, W Taylor, M Tecchio, PK Teng, Y Teramoto, K Terashi, S Tether, D Theriot, TL Thomas, 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, F Ukegawa, J Valls, SC van den Brink, S Vejcik, G Velev, I Volobouev, R Vidal, R Vilar, D Vucinic, RG Wagner, RL Wagner, J Wahl, NB Wallace, AM Walsh, C Wang, CH Wang, MJ Wang, A Warburton, T Watanabe, T Watts, R Webb, C 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, GP Yeh, P Yeh, J Yoh, C Yosef, T Yoshida, I Yu, A Zanetti, F Zetti, S Zucchelli
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Kinematics of tt̄ events at CDF

Physical Review D - Particles, Fields, Gravitation and Cosmology 59:9 (1999) 1-20

Authors:

F Abe, H Akimoto, A Akopian, MG Albrow, A Amadon, SR Amendolia, D Amidei, J Antos, S Aota, G Apollinari, T Arisawa, T Asakawa, W Ashmanskas, M Atac, P Azzi-Bacchetta, N Bacchetta, S Bagdasarov, MW Bailey, P De Barbara, A Barbaro-Galtieri, VE Barnes, BA Barnett, M Barone, G Bauer, T Baumann, F Bedeschi, S Behrends, S Belforte, G Bellettini, J Bellinger, D Benjamin, J Bensinger, A Beretvas, JP Berge, J Berryhill, S Bertolucci, S Bettelli, B Bevensee, A Bhatti, K Biery, C Bigongiari, M Binkley, D Bisello, RE Blair, C Blocker, K Bloom, S Blusk, A Bodek, W Bikhari, G Bolla, Y Bonushkin, D Bortoletto, J Boudreau, L Breccia, C Bromberg, N Burner, R Brunetti, E Buckley-Geer, HS Budd, K Burkett, G Busetto, A Byon-Wagner, KL Byrum, M Campbell, A Caner, W Carithers, D Carlsmith, J Cassada, A Castro, D Cauz, A Cerri, PS Chang, PT Chang, HY Chao, J Chapman, MT Cheng, M Chertok, G Chiarelli, CN Chiou, F Chlebana, L Christofek, R Cropp, ML Chu, S Cihangir, AG Clark, M Cobal, E Cocca, M Contreras, J Conway, J Cooper, M Cordelli, D Costanzo, C Couyoumtzelis, D Cronin-Hennessy, R Culbertson, D Dagenhart, T Daniels, F DeJongh, S Dell'Agnello, M Dell'Orso

Abstract:

The kinematic properties of tt̄ events are studied in the W+ multijet channel using data collected with the CDF detector during the 1992-1995 runs at the Fermilab Tevatron collider corresponding to an integrated luminosity of 109 pb-1. Distributions of a variety of kinematic variables chosen to be sensitive to different aspects of tt̄ production are compared with those expected from Monte Carlo calculations. A sample of 34 events rich in tt̄ pairs is obtained by requiring at least one jet identified by the silicon vertex detector (SVX) as having a displaced vertex consistent with the decay of a b hadron. The data are found to be in good agreement with predictions of the leading order tt̄ matrix element with color coherent parton shower evolution. ©1999 The American Physical Society.
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Searches for new physics in diphoton events in pp̄ collisions at √s = 1.8 TeV

Physical Review D - Particles, Fields, Gravitation and Cosmology 59:9 (1999) 1-29

Authors:

F Abe, H Akimoto, A Akopian, MG Albrow, A Amadon, SR Amendolia, D Amidei, J Antos, S Aota, G Apollinari, T Arisawa, T Asakawa, W Ashmanskas, M Atac, P Azzi-Bacchetta, N Bacchetta, S Bagdasarov, MW Bailey, P De Barbara, A Barbaro-Galtieri, VE Barnes, BA Barnett, M Barone, G Bauer, T Baumann, F Bedeschi, S Behrends, S Belforte, G Bellettini, J Bellinger, D Benjamin, J Bensinger, A Beretvas, JP Berge, J Berryhill, S Bertolucci, S Bettelli, B Bevensee, A Bhatti, K Biery, C Bigongiari, M Binkley, D Bisello, RE Blair, C Blocker, K Bloom, S Blusk, A Bodek, W Bikhari, G Bolla, Y Bonushkin, D Bortoletto, J Boudreau, L Breccia, C Bromberg, N Burner, R Brunetti, E Buckley-Geer, HS Budd, K Burkett, G Busetto, A Byon-Wagner, KL Byrum, M Campbell, A Caner, W Carithers, D Carlsmith, J Cassada, A Castro, D Cauz, A Cerri, PS Chang, PT Chang, HY Chao, J Chapman, MT Cheng, M Chertok, G Chiarelli, CN Chiou, F Chlebana, L Christofek, R Cropp, ML Chu, S Cihangir, AG Clark, M Cobal, E Cocca, M Contreras, J Conway, J Cooper, M Cordelli, D Costanzo, C Couyoumtzelis, D Cronin-Hennessy, R Culbertson, D Dagenhart, T Daniels, F DeJongh, S Dell'Agnello, M Dell'Orso

Abstract:

We present a detailed description of a search for anomalous production of missing ET (Slashed E signT), jets, leptons (e, μ, τ), b quarks, or additional photons in events containing two isolated, central (|η|<1.0) photons with ET>12 GeV. The results are consistent with standard model expectations, with the possible exception of one event that has, in addition to the two photons, a central electron, a high-ET electromagnetic cluster, and large Slashed E signT. We set limits using two specific SUSY scenarios for production of diphoton events with Slashed E signT. ©1999 The American Physical Society.
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The ANTARES project

NUCL PHYS B-PROC SUP 75A (1999) 415-417

Authors:

P Amram, S Anvar, E Aslanides, JJ Aubert, R Azoulay, S Basa, Y Benhammou, F Bernard, R Berthier, V Bertin, M Billault, S Biller, F Blanc, PE Blanc, RW Bland, F Blondeau, N de Botton, N Bottu, J Boulesteix, B Brooks, J Brunner, A Calzas, C Carloganu, J Carr, PH Carton, S Cartwright, R Cases, F Cassol, F Charles, J Charles, F Desages, JJ Destelle, G Dispau, PY Duval, J Engelen, F Feinstein, EC Flores, J Fopma, JL Fuda, P Goret, L Gosset, JF Gournay, JJ Hernandez, F Hubaut, R Hubbard, D Huss, M Jaquet, N Jelley, E Kajfasz, A Kouchner, V Kudryavtsev, D Lachartre, H Lafoux, P Lamare, JC Languillat, JP Laugier, H Le Provost, D Loiseau, S Loucatos, P Magnier, K Marc, M Marcelin, L Martin, B Mazeau, A Mazure, J McMillan, C Meessen, C Millot, P Mols, F Montanet, M Moorhead, L Moscoso, S Navas, V Nooren, C Olivetto, N Palanque-Delabrouille, A Pallares, P Payre, P Perrin, J Poinsignon, R Potheau, Z Qian, M Raymond, J Roberts, Y Sacquin, JP Schuller, V Schuster, N Spooner, T Stolarczyk, A Tabary, M Talby, C Tao, L Thompson, R Triay, M Valdy, J Velasco, E Vigeolas, D Vignaud, D Vilanova, D Wark, J Zuniga, ANTARES Collaboration

Abstract:

The ANTARES project is an international collaboration with the aim of building a deep-sea large area neutrino telescope within the next decade. The achievements and status of the project as at the time of the conference are briefly discussed, and short term steps as well as longer term plans are described.
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Measurement of Z0 and Drell-Yan production cross sections using dimuons in p̄p collisions at √s=1.8TeV

Physical Review D - Particles, Fields, Gravitation and Cosmology 59:5 (1999) 1-15

Authors:

F Abe, H Akimoto, A Akopian, MG Albrow, A Amadon, SR Amendolia, D Amidei, J Antos, S Aota, G Apollinari, T Arisawa, T Asakawa, W Ashmanskas, M Atac, P Azzi-Bacchetta, N Bacchetta, S Bagdasarov, MW Bailey, P De Barbara, A Barbaro-Galtieri, VE Barnes, BA Barnett, M Barone, G Bauer, T Baumann, F Bedeschi, S Behrends, S Belforte, G Bellettini, J Bellinger, D Benjamin, J Bensinger, A Beretvas, JP Berge, J Berryhill, S Bertolucci, S Bettelli, B Bevensee, A Bhatti, K Biery, C Bigongiari, M Binkley, D Bisello, RE Blair, C Blocker, K Bloom, S Blusk, A Bodek, W Bokhari, G Bolla, Y Bonushkin, D Bortoletto, J Boudreau, L Breccia, C Bromberg, N Bruner, R Brunetti, E Buckley-Geer, HS Budd, K Burkett, G Busetto, A Byon-Wagner, KL Byrum, M Campbell, A Caner, W Carithers, D Carlsmith, J Cassada, A Castro, D Cauz, A Cerri, PS Chang, PT Chang, HY Chao, J Chapman, MT Cheng, M Chertok, G Chiarelli, CN Chiou, F Chlebana, L Christofek, R Cropp, ML Chu, S Cihangir, AG Clark, M Cobal, E Cocca, M Contreras, J Conway, J Cooper, M Cordelli, D Costanzo, C Couyoumtzelis, D Cronin-Hennessy, R Culbertson, D Dagenhart, T Daniels, F DeJongh, S Dell'Agnello, M Dell'Orso

Abstract:

We present a measurement of Z0 boson and Drell-Yan production cross sections in p̄p collisions at √s =1.8TeV using a sample of 107 pb-1 accumulated by the Collider Detector at Fermilab. The Drell-Yan cross section is measured in the mass range of Mμμ>40GeV/c2. We compare the measurements with the predictions of quantum chromodynamics in both leading order and next-to-leading order, incorporating the recent parton distribution functions. The measurements are consistent with the standard model expectations. ©1999 The American Physical Society.
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