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Measurement of the tt¯ production cross section in pp¯collisions at s=1.96 TeV using kinematic fitting of b-tagged lepton+jet events

Physical Review D American Physical Society (APS) 71:7 (2005) 072005

Authors:

D Acosta, J Adelman, T Affolder, T Akimoto, MG Albrow, D Ambrose, S Amerio, D Amidei, A Anastassov, K Anikeev, A Annovi, J Antos, M Aoki, G Apollinari, T Arisawa, J-F Arguin, A Artikov, W Ashmanskas, A Attal, F Azfar, P Azzi-Bacchetta, N Bacchetta, H Bachacou, W Badgett, A Barbaro-Galtieri, GJ Barker, VE Barnes, BA Barnett, S Baroiant, M Barone, G Bauer, F Bedeschi, S Behari, S Belforte, G Bellettini, J Bellinger, E Ben-Haim, D Benjamin, A Beretvas, A Bhatti, M Binkley, D Bisello, M Bishai, RE Blair, C Blocker, K Bloom, B Blumenfeld, A Bocci, A Bodek, G Bolla, A Bolshov, PSL Booth, D Bortoletto, J Boudreau, S Bourov, C Bromberg, E Brubaker, J Budagov, HS Budd, K Burkett, G Busetto, P Bussey, KL Byrum, S Cabrera, P Calafiura, M Campanelli, M Campbell, A Canepa, M Casarsa, D Carlsmith, S Carron, R Carosi, M Cavalli-Sforza, A Castro, P Catastini, D Cauz, A Cerri, C Cerri, L Cerrito, J Chapman, C Chen, YC Chen, M Chertok, G Chiarelli, G Chlachidze, F Chlebana, I Cho, K Cho, D Chokheli, ML Chu, S Chuang, JY Chung, W-H Chung, YS Chung, CI Ciobanu, MA Ciocci, AG Clark, D Clark, M Coca, A Connolly, M Convery, J Conway, B Cooper, M Cordelli, G Cortiana, J Cranshaw, J Cuevas, R Culbertson, C Currat, D Cyr, D Dagenhart, S Da Ronco, S D’Auria, P de Barbaro, S De Cecco, G De Lentdecker, S Dell’Agnello, M Dell’Orso, S Demers, L Demortier, M Deninno, D De Pedis, PF Derwent, C Dionisi, JR Dittmann, P Doksus, A Dominguez, S Donati, M Donega, J Donini, M D’Onofrio, T Dorigo, V Drollinger, K Ebina, N Eddy, R Ely, R Erbacher, M Erdmann, D Errede, S Errede, R Eusebi, H-C Fang, S Farrington, I Fedorko, RG Feild, M Feindt, JP Fernandez, C Ferretti, RD Field, I Fiori, G Flanagan, B Flaugher, LR Flores-Castillo, A Foland, S Forrester, GW Foster, M Franklin, J Freeman, H Frisch, Y Fujii, I Furic, A Gajjar, A Gallas, J Galyardt, M Gallinaro, M Garcia-Sciveres, AF Garfinkel, C Gay, H Gerberich, DW Gerdes, E Gerchtein, S Giagu, P Giannetti, A Gibson, K Gibson, C Ginsburg, K Giolo, M Giordani, G Giurgiu, V Glagolev, D Glenzinski, M Gold, N Goldschmidt, D Goldstein, J Goldstein, G Gomez, G Gomez-Ceballos, M Goncharov, O González, I Gorelov, AT Goshaw, Y Gotra, K Goulianos, A Gresele, M Griffiths, C Grosso-Pilcher, M Guenther, J Guimaraes da Costa, C Haber, K Hahn, SR Hahn, E Halkiadakis, A Hamilton, R Handler, F Happacher, K Hara, M Hare, RF Harr, RM Harris, F Hartmann, K Hatakeyama, J Hauser, C Hays, H Hayward, E Heider, B Heinemann, J Heinrich, M Hennecke, M Herndon, C Hill, D Hirschbuehl, A Hocker, KD Hoffman, A Holloway, S Hou, MA Houlden, BT Huffman, Y Huang, RE Hughes, J Huston, K Ikado, J Incandela, G Introzzi, M Iori, Y Ishizawa, C Issever, A Ivanov, Y Iwata, B Iyutin, E James, D Jang, J Jarrell, D Jeans, H Jensen, EJ Jeon, M Jones, KK Joo, S Jun, T Junk, T Kamon, J Kang, M Karagoz Unel, PE Karchin, S Kartal, Y Kato, Y Kemp, R Kephart, U Kerzel, V Khotilovich, B Kilminster, DH Kim, HS Kim, JE Kim, MJ Kim, MS Kim, SB Kim, SH Kim, TH Kim, YK Kim, BT King, M Kirby, L Kirsch, S Klimenko, B Knuteson, BR Ko, H Kobayashi, P Koehn, DJ Kong, K Kondo, J Konigsberg, K Kordas, A Korn, A Korytov, K Kotelnikov, AV Kotwal, A Kovalev, J Kraus, I Kravchenko, A Kreymer, J Kroll, M Kruse, V Krutelyov, SE Kuhlmann, N Kuznetsova, AT Laasanen, S Lai, S Lami, S Lammel, J Lancaster, M Lancaster, R Lander, K Lannon, A Lath, G Latino, R Lauhakangas, I Lazzizzera, Y Le, C Lecci, T LeCompte, J Lee, J Lee, SW Lee, R Lefevre, N Leonardo, S Leone, JD Lewis, K Li, C Lin, CS Lin, M Lindgren, TM Liss, DO Litvintsev, T Liu, Y Liu, NS Lockyer, A Loginov, M Loreti, P Loverre, R-S Lu, D Lucchesi, P Lujan, P Lukens, G Lungu, L Lyons, J Lys, R Lysak, D MacQueen, R Madrak, K Maeshima, P Maksimovic, L Malferrari, G Manca, R Marginean, M Martin, A Martin, V Martin, M Martínez, T Maruyama, H Matsunaga, M Mattson, P Mazzanti, KS McFarland, D McGivern, PM McIntyre, P McNamara, R NcNulty, S Menzemer, A Menzione, P Merkel, C Mesropian, A Messina, T Miao, N Miladinovic, L Miller, R Miller, JS Miller, R Miquel, S Miscetti, G Mitselmakher, A Miyamoto, Y Miyazaki, N Moggi, B Mohr, R Moore, M Morello, A Mukherjee, M Mulhearn, T Muller, R Mumford, A Munar, P Murat, J Nachtman, S Nahn, I Nakamura, I Nakano, A Napier, R Napora, D Naumov, V Necula, F Niell, J Nielsen, C Nelson, T Nelson, C Neu, MS Neubauer, C Newman-Holmes, A-S Nicollerat, T Nigmanov, L Nodulman, O Norniella, K Oesterberg, T Ogawa, SH Oh, YD Oh, T Ohsugi, T Okusawa, R Oldeman, R Orava, W Orejudos, C Pagliarone, F Palmonari, R Paoletti, V Papadimitriou, S Pashapour, J Patrick, G Pauletta, M Paulini, T Pauly, C Paus, D Pellett, A Penzo, TJ Phillips, G Piacentino, J Piedra, KT Pitts, C Plager, A Pompoš, L Pondrom, G Pope, O Poukhov, F Prakoshyn, T Pratt, A Pronko, J Proudfoot, F Ptohos, G Punzi, J Rademacker, A Rakitine, S Rappoccio, F Ratnikov, H Ray, A Reichold, B Reisert, V Rekovic, P Renton, M Rescigno, F Rimondi, K Rinnert, L Ristori, WJ Robertson, A Robson, T Rodrigo, S Rolli, L Rosenson, R Roser, R Rossin, C Rott, J Russ, A Ruiz, D Ryan, H Saarikko, A Safonov, R St. Denis, WK Sakumoto, G Salamanna, D Saltzberg, C Sanchez, A Sansoni, L Santi, S Sarkar, K Sato, P Savard, A Savoy-Navarro, P Schemitz, P Schlabach, EE Schmidt, MP Schmidt, M Schmitt, L Scodellaro, A Scribano, F Scuri, A Sedov, S Seidel, Y Seiya, F Semeria, L Sexton-Kennedy, I Sfiligoi, MD Shapiro, T Shears, PF Shepard, M Shimojima, M Shochet, Y Shon, I Shreyber, A Sidoti, J Siegrist, M Siket, A Sill, P Sinervo, A Sisakyan, A Skiba, AJ Slaughter, K Sliwa, D Smirnov, JR Smith, FD Snider, R Snihur, SV Somalwar, J Spalding, M Spezziga, L Spiegel, F Spinella, M Spiropulu, P Squillacioti, H Stadie, A Stefanini, B Stelzer, O Stelzer-Chilton, J Strologas, D Stuart, A Sukhanov, K Sumorok, H Sun, T Suzuki, A Taffard, R Tafirout, SF Takach, H Takano, R Takashima, Y Takeuchi, K Takikawa, M Tanaka, R Tanaka, N Tanimoto, S Tapprogge, M Tecchio, PK Teng, K Terashi, RJ Tesarek, S Tether, J Thom, AS Thompson, E Thomson, P Tipton, V Tiwari, S Tkaczyk, D Toback, K Tollefson, T Tomura, D Tonelli, M Tönnesmann, S Torre, D Torretta, S Tourneur, W Trischuk, J Tseng, R Tsuchiya, S Tsuno, D Tsybychev, N Turini, M Turner, F Ukegawa, T Unverhau, S Uozumi, D Usynin, L Vacavant, A Vaiciulis, A Varganov, E Vataga, S Vejcik, G Velev, G Veramendi, T Vickey, R Vidal, I Vila, R Vilar, I Volobouev, M von der Mey, P Wagner, RG Wagner, RL Wagner, W Wagner, R Wallny, T Walter, T Yamashita, K Yamamoto, Z Wan, MJ Wang, SM Wang, A Warburton, B Ward, S Waschke, D Waters, T Watts, M Weber, WC Wester, B Whitehouse, AB Wicklund, E Wicklund, HH Williams, P Wilson, BL Winer, P Wittich, S Wolbers, M Wolter, M Worcester, S Worm, T Wright, X Wu, F Würthwein, A Wyatt, A Yagil, UK Yang, W Yao, GP Yeh, K Yi, J Yoh, P Yoon, K Yorita, T Yoshida, I Yu, S Yu, Z Yu, JC Yun, L Zanello, A Zanetti, I Zaw, F Zetti, J Zhou, A Zsenei, S Zucchelli
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Measurement of the tt̄ production cross section in pp̄ collisions at √s=1:96 TeV using kinematic fitting of b-tagged lepton+jet events

Physical Review D - Particles, Fields, Gravitation and Cosmology 71:7 (2005) 1-11

Authors:

D Acosta, J Adelman, T Affolder, T Akimoto, MG Albrow, D Ambrose, S Amerio, D Amidei, A Anastassov, K Anikeev, A Annovi, J Antos, M Aoki, G Apollinari, T Arisawa, JF Arguin, A Artikov, W Ashmanskas, A Attal, F Azfar, P Azzi-Bacchetta, N Bacchetta, H Bachacou, W Badgett, A Barbaro-Galtieri, GJ Barker, VE Barnes, BA Barnett, S Baroiant, M Barone, G Bauer, F Bedeschi, S Behari, S Belforte, G Bellettini, J Bellinger, E Ben-Haim, D Benjamin, A Beretvas, A Bhatti, M Binkley, D Bisello, M Bishai, RE Blair, C Blocker, K Bloom, B Blumenfeld, A Bocci, A Bodek, G Bolla, A Bolshov, PSL Booth, D Bortoletto, J Boudreau, S Bourov, C Bromberg, E Brubaker, J Budagov, HS Budd, K Burkett, G Busetto, P Bussey, KL Byrum, S Cabrera, P Calafiura, M Campanelli, M Campbell, A Canepa, M Casarsa, D Carlsmith, S Carron, R Carosi, M Cavalli-Sforza, A Castro, P Catastini, D Cauz, A Cerri, C Cerri, L Cerrito, J Chapman, C Chen, YC Chen, M Chertok, G Chiarelli, G Chlachidze, F Chlebana, I Cho, K Cho, D Chokheli, ML Chu, S Chuang, JY Chung, WH Chung, YS Chung, CI Ciobanu, MA Ciocci, AG Clark, D Clark, M Coca, A Connolly

Abstract:

We report a measurement of the tt̄ production cross section using the CDF II detector at the Fermilab Tevatron. The data consist of events with an energetic electron or muon, missing transverse energy, and three or more hadronic jets, at least one of which is identified as a b-quark jet by reconstructing a secondary vertex. The background fraction is determined from a fit of the transverse energy of the leading jet. Using 162 ± 10 pb -1 of data, the total cross section is found to be 6.0 ± 1.6(stat.) ± 1.2(syst.) pb, which is consistent with the standard model prediction. © 2005 The American Physical Society.
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Radiation-hard semiconductor detectors for SuperLHC

Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment Elsevier 541:1-2 (2005) 189-201

Authors:

M Bruzzi, J Adey, A Al-Ajili, P Alexandrov, G Alfieri, PP Allport, A Andreazza, M Artuso, S Assouak, BS Avset, L Barabash, E Baranova, A Barcz, A Basile, R Bates, N Belova, SF Biagi, GM Bilei, D Bisello, A Blue, A Blumenau, V Boisvert, G Bolla, G Bondarenko, E Borchi, L Borrello, D Bortoletto, M Boscardin, L Bosisio, TJV Bowcock, TJ Brodbeck, J Broz, A Brukhanov, A Brzozowski, M Buda, P Buhmann, C Buttar, F Campabadal, D Campbell, A Candelori, G Casse, A Cavallini, A Chilingarov, D Chren, V Cindro, M Citterio, P Collins, R Coluccia, D Contarato, J Coutinho, D Creanza, W Cunningham, V Cvetkov, G-F Dalla Betta, G Davies, I Dawson, W de Boer, M De Palma, R Demina, P Dervan, A Dierlamm, S Dittongo, L Dobrzanski, Z Dolezal, A Dolgolenko, T Eberlein, V Eremin, C Fall, F Fasolo, T Ferbel, F Fizzotti, C Fleta, E Focardi, E Forton, S Franchenko, E Fretwurst, F Gamaz, C Garcia, JE Garcia-Navarro, E Gaubas, M-H Genest, KA Gill, K Giolo, M Glaser, C Goessling, V Golovine, S González Sevilla, I Gorelov, J Goss, A Gouldwell, G Grégoire, P Gregori, E Grigoriev, C Grigson, A Grillo, A Groza, J Guskov, L Haddad, J Härkönen, R Harding, F Hauler, S Hayama, M Hoeferkamp, F Hönniger, T Horazdovsky, R Horisberger, M Horn, A Houdayer, B Hourahine, A Hruban, G Hughes, I Ilyashenko, K Irmscher, A Ivanov, K Jarasiunas, T Jin, BK Jones, R Jones, C Joram, L Jungermann, E Kalinina, P Kaminski, A Karpenko, A Karpov, V Kazlauskiene, V Kazukauskas, V Khivrich, V Khomenkov, J Kierstead, J Klaiber-Lodewigs, M Kleverman, R Klingenberg, P Kodys, Z Kohout, S Korjenevski, A Kowalik, R Kozlowski, M Kozodaev, G Kramberger, O Krasel, A Kuznetsov, S Kwan, S Lagomarsino, T Lari, K Lassila-Perini, V Lastovetsky, G Latino, S Latushkin, S Lazanu, I Lazanu, C Lebel, K Leinonen, C Leroy, Z Li, G Lindström, L Lindstrom, V Linhart, A Litovchenko, P Litovchenko, V Litvinov, A Lo Giudice, M Lozano, Z Luczynski, P Luukka, A Macchiolo, A Mainwood, LF Makarenko, I Mandić, C Manfredotti, S Marti I Garcia, S Marunko, K Mathieson, A Mozzanti, J Melone, D Menichelli, C Meroni, A Messineo, S Miglio, M Mikuž, J Miyamoto, M Moll, E Monakhov, F Moscatelli, L Murin, F Nava, D Naoumov, E Nossarzewska-Orlowska, S Nummela, J Nysten, P Olivero, V Oshea, T Palviainen, C Paolini, C Parkes, D Passeri, U Pein, G Pellegrini, L Perera, M Petasecca, B Piatkowski, C Piemonte, GU Pignatel, N Pinho, I Pintilie, L Pintilie, L Polivtsev, P Polozov, AI Popa, J Popule, S Pospisil, G Pucker, V Radicci, JM Rafí, F Ragusa, M Rahman, R Rando, R Roeder, T Rohe, S Ronchin, C Rott, P Roy, A Roy, A Ruzin, A Ryazanov, HFW Sadrozinski, S Sakalauskas, M Scaringella, L Schiavulli, S Schnetzer, B Schumm, S Sciortino, A Scorzoni, G Segneri, S Seidel, A Seiden, G Sellberg, P Sellin, D Sentenac, I Shipsey, P Sicho, T Sloan, M Solar, S Son, B Sopko, N Spencer, J Stahl, I Stavitski, D Stolze, R Stone, J Storasta, N Strokan, W Strupinski, M Sudzius, B Surma, J Suuronen, A Suvorov, BG Svensson, P Tipton, M Tomasek, C Troncon, A Tsvetkov, E Tuominen, E Tuovinen, T Tuuva, M Tylchin, H Uebersee, J Uher, M Ullán, JV Vaitkus, P Vanni, J Velthuis, G Verzellesi, E Verbitskaya, V Vrba, G Wagner, I Wilhelm, S Worm, V Wright, R Wunstorf, P Zabierowski, A Zaluzhny, M Zavrtanik, M Zen, V Zhukov, N Zorzi
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Search for pentaquarks decaying to Ξπ in deep inelastic scattering at HERA

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 610:3-4 (2005) 212-224

Authors:

S Chekanov, M Derrick, S Magill, S Miglioranzi, B Musgrave, J Repond, R Yoshida, MCK Mattingly, N Pavel, AG Yagües Molina, P Antonioli, G Bari, M Basile, L Bellagamba, D Boscherini, A Bruni, G Bruni, G Cara Romeo, L Cifarelli, F Cindolo, A Contin, M Corradi, S De Pasquale, P Giusti, G Iacobucci, A Margotti, A Montanari, R Nania, F Palmonari, A Pesci, A Polini, L Rinaldi, G Sartorelli, A Zichichi, G Aghuzumtsyan, D Bartsch, I Brock, S Goers, H Hartmann, E Hilger, P Irrgang, HP Jakob, O Kind, U Meyer, E Paul, J Rautenberg, R Renner, KC Voss, M Wang, M Wlasenko, DS Bailey, NH Brook, JE Cole, GP Heath, T Namsoo, S Robins, M Capua, A Mastroberardino, M Schioppa, G Susinno, E Tassi, JY Kim, KJ Ma, M Helbich, Y Ning, Z Ren, WB Schmidke, F Sciulli, J Chwastowski, A Eskreys, J Figiel, A Galas, K Olkiewicz, P Stopa, D Szuba, L Zawiejski, L Adamczyk, T Bołd, I Grabowska-Bołd, D Kisielewska, AM Kowal, J Łukasik, M Przybycień, L Suszycki, J Szuba, A Kotański, W Słomiński, V Adler, U Behrens, I Bloch, K Borras, G Drews, J Fourletova, A Geiser, D Gladkov, P Göttlicher, O Gutsche, T Haas, W Hain, C Horn

Abstract:

A search for pentaquarks decaying to Ξ-π- (Ξ-π+) and corresponding antiparticles has been performed with the ZEUS detector at HERA. The data sample consists of deep inelastic ep scattering events at centre-of-mass energies of 300 and 318 GeV, and corresponds to 121 pb -1 of integrated luminosity. A clear signal for Ξ0(1530) →Ξ-π+ was observed. However, no signal for any new baryonic state was observed at higher masses in either the Ξ-π- or Ξ-π+ channels. The searches in the antiparticle channels were also negative. Upper limits on the ratio of a possible Ξ3/2 - (Ξ3/20) signal to the Ξ0(1530) signal were set in the mass range 1650-2350 MeV. © 2005 Elsevier B.V. All rights reserved.
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Study of the pion trajectory in the photoproduction of leading neutrons at HERA

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 610:3-4 (2005) 199-211

Authors:

S Chekanov, M Derrick, D Krakauer, JH Loizides, S Magill, S Miglioranzi, B Musgrave, J Repond, R Yoshida, MCK Mattingly, P Antonioli, G Bari, M Basile, L Bellagamba, D Boscherini, A Bruni, G Bruni, G Cara Romeo, L Cifarelli, F Cindolo, A Contin, M Corradi, S De Pasquale, P Giusti, G Iacobucci, A Margotti, A Montanari, R Nania, F Palmonari, A Pesci, G Sartorelli, A Zichichi, G Aghuzumtsyan, D Bartsch, I Brock, S Goers, H Hartmann, E Hilger, P Irrgang, HP Jakob, O Kind, U Meyer, E Paul, J Rautenberg, R Renner, A Stifutkin, J Tandler, KC Voss, M Wang, DS Bailey, NH Brook, JE Cole, GP Heath, T Namsoo, S Robins, M Wing, M Capua, A Mastroberardino, M Schioppa, G Susinno, JY Kim, IT Lim, KJ Ma, MY Pac, A Caldwell, M Helbich, X Liu, B Mellado, Y Ning, S Paganis, Z Ren, WB Schmidke, F Sciulli, J Chwastowski, A Eskreys, J Figiel, A Galas, K Olkiewicz, P Stopa, L Zawiejski, L Adamczyk, T Bołd, I Grabowska-Bołd, D Kisielewska, AM Kowal, M Kowal, J Łukasik, M Przybycień, L Suszycki, D Szuba, J Szuba, A Kotański, W Słomiński, V Adler, U Behrens, I Bloch, K Borras, V Chiochia, D Dannheim, G Drews

Abstract:

Energetic neutrons produced in ep collisions at HERA have been studied with the ZEUS detector in the photoproduction regime at a mean photon-proton center-of-mass energy of 220 GeV. The neutrons carry a large fraction 0.64
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