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Central pseudorapidity gaps in events with a leading antiproton at the fermilab tevatron pp collider.

Phys Rev Lett 91:1 (2003) 011802

Authors:

D Acosta, T Affolder, H Akimoto, MG Albrow, D Ambrose, D Amidei, K Anikeev, J Antos, G Apollinari, T Arisawa, A Artikov, T Asakawa, W Ashmanskas, F Azfar, P Azzi-Bacchetta, N Bacchetta, H Bachacou, W Badgett, S Bailey, P De Barbaro, A Barbaro-Galtieri, VE Barnes, BA Barnett, S Baroiant, M Barone, G Bauer, F Bedeschi, S Behari, S Belforte, WH Bell, G Bellettini, J Bellinger, D Benjamin, J Bensinger, A Beretvas, J Berryhill, A Bhatti, M Binkley, D Bisello, M Bishai, RE Blair, C Blocker, K Bloom, B Blumenfeld, SR Blusk, A Bocci, A Bodek, G Bolla, A Bolshov, Y Bonushkin, D Bortoletto, J Boudreau, A Brandl, C Bromberg, M Brozovic, E Brubaker, N Bruner, J Budagov, HS Budd, K Burkett, G Busetto, KL Byrum, S Cabrera, P Calafiura, M Campbell, W Carithers, J Carlson, D Carlsmith, W Caskey, A Castro, D Cauz, A Cerri, L Cerrito, AW Chan, PS Chang, PT Chang, J Chapman, C Chen, YC Chen, M-T Cheng, M Chertok, G Chiarelli, I Chirikov-Zorin, G Chlachidze, F Chlebana, L Christofek, ML Chu, JY Chung, W-H Chung, YS Chung, CI Ciobanu, AG Clark, M Coca, AP Colijn, A Connolly, M Convery, J Conway, M Cordelli, J Cranshaw, R Culbertson, D Dagenhart, S D'Auria, S De Cecco, F DeJongh, S Dell'Agnello, M Dell'Orso, S Demers, L Demortier, M Deninno, D De Pedis, PF Derwent, T Devlin, C Dionisi, JR Dittmann, A Dominguez, S Donati, M D'Onofrio, T Dorigo, N Eddy, K Einsweiler, E Engels, R Erbacher, D Errede, S Errede, R Eusebi, Q Fan, H-C Fang, S Farrington, RG Feild, JP Fernandez, C Ferretti, RD Field, I Fiori, B Flaugher, LR Flores-Castillo, GW Foster, M Franklin, J Freeman, J Friedman, Y Fukui, I Furic, S Galeotti, A Gallas, M Gallinaro, T Gao, M Garcia-Sciveres, AF Garfinkel, P Gatti, C Gay, DW Gerdes, E Gerstein, S Giagu, P Giannetti, K Giolo, M Giordani, V Glagolev, D Glenzinski, M Gold, N Goldschmidt, J Goldstein, G Gomez, M Goncharov, I Gorelov, AT Goshaw, Y Gotra, K Goulianos, C Green, A Gresele, G Grim, C Grosso-Pilcher, M Guenther, G Guillian, J Guimaraes Da Costa, RM Haas, C Haber, SR Hahn, E Halkiadakis, C Hall, T Handa, R Handler, F Happacher, K Hara, AD Hardman, RM Harris, F Hartmann, K Hatakeyama, J Hauser, J Heinrich, A Heiss, M Hennecke, M Herndon, C Hill, A Hocker, KD Hoffman, R Hollebeek, L Holloway, S Hou, BT Huffman, R Hughes, J Huston, J Huth, H Ikeda, C Issever, J Incandela, G Introzzi, M Iori, A Ivanov, J Iwai, Y Iwata, B Iyutin, E James, M Jones, U Joshi, H Kambara, T Kamon, T Kaneko, J Kang, M Karagoz Unel, K Karr, S Kartal, H Kasha, Y Kato, TA Keaffaber, K Kelley, M Kelly, RD Kennedy, R Kephart, D Khazins, T Kikuchi, B Kilminster, BJ Kim, DH Kim, HS Kim, MJ Kim, SB Kim, SH Kim, TH Kim, YK Kim, M Kirby, M Kirk, L Kirsch, S Klimenko, P Koehn, K Kondo, J Konigsberg, A Korn, A Korytov, K Kotelnikov, E Kovacs, J Kroll, M Kruse, V Krutelyov, SE Kuhlmann, K Kurino, T Kuwabara, N Kuznetsova, AT Laasanen, N Lai, S Lami, S Lammel, J Lancaster, K Lannon, M Lancaster, R Lander, A Lath, G Latino, T LeCompte, Y Le, J Lee, SW Lee, N Leonardo, S Leone, JD Lewis, K Li, CS Lin, M Lindgren, TM Liss, JB Liu, T Liu, YC Liu, DO Litvintsev, O Lobban, NS Lockyer, A Loginov, J Loken, M Loreti, D Lucchesi, P Lukens, S Lusin, L Lyons, J Lys, R Madrak, K Maeshima, P Maksimovic, L Malferrari, M Mangano, G Manca, M Mariotti, G Martignon, M Martin, A Martin, V Martin, M Martínez, JAJ Matthews, P Mazzanti, KS McFarland, P McIntyre, M Menguzzato, A Menzione, P Merkel, C Mesropian, A Meyer, T Miao, R Miller, JS Miller, H Minato, S Miscetti, M Mishina, G Mitselmakher, Y Miyazaki, N Moggi, E Moore, R Moore, Y Morita, T Moulik, M Mulhearn, A Mukherjee, T Muller, A Munar, P Murat, S Murgia, J Nachtman, V Nagaslaev, S Nahn, H Nakada, I Nakano, R Napora, F Niell, C Nelson, T Nelson, C Neu, MS Neubauer, D Neuberger, C Newman-Holmes, C-YP Ngan, T Nigmanov, H Niu, L Nodulman, A Nomerotski, SH Oh, YD Oh, T Ohmoto, T Ohsugi, R Oishi, T Okusawa, J Olsen, W Orejudos, C Pagliarone, F Palmonari, R Paoletti, V Papadimitriou, D Partos, J Patrick, G Pauletta, M Paulini, T Pauly, C Paus, D Pellett, A Penzo, L Pescara, TJ Phillips, G Piacentino, J Piedra, KT Pitts, A Pompos, L Pondrom, G Pope, T Pratt, F Prokoshin, J Proudfoot, F Ptohos, O Pukhov, G Punzi, J Rademacker, A Rakitine, F Ratnikov, H Ray, D Reher, A Reichold, P Renton, M Rescigno, A Ribon, W Riegler, F Rimondi, L Ristori, WJ Robertson, T Rodrigo, S Rolli, L Rosenson, R Roser, R Rossin, C Rott, A Roy, A Ruiz, D Ryan, A Safonov, R St Denis, WK Sakumoto, D Saltzberg, C Sanchez, A Sansoni, L Santi, S Sarkar, H Sato, A Savoy-Navarro, P Schlabach, EE Schmidt, MP Schmidt, M Schmitt, L Scodellaro, A Scott, A Scribano, A Sedov, S Seidel, Y Seiya, A Semenov, F Semeria, T Shah, MD Shapiro, PF Shepard, T Shibayama, M Shimojima, M Shochet, A Sidoti, J Siegrist, A Sill, P Singh, AJ Slaughter, K Sliwa, FD Snider, R Snihur, A Solodsky, J Spalding, T Speer, M Spezziga, P Sphicas, F Spinella, M Spiropulu, L Spiegel, J Steele, A Stefanini, J Strologas, F Strumia, D Stuart, A Sukhanov, K Sumorok, T Suzuki, T Takano, R Takashima, K Takikawa, P Tamburello, M Tanaka, B Tannenbaum, M Tecchio, RJ Tesarek, PK Teng, K Terashi, S Tether, J Thom, AS Thompson, E Thomson, R Thurman-Keup, P Tipton, S Tkaczyk, D Toback, K Tollefson, D Tonelli, M Tonnesmann, H Toyoda, JF De Troconiz, J Tseng, D Tsybychev, N Turini, F Ukegawa, T Unverhau, T Vaiciulis, J Valls, A Varganov, E Vataga, S Vejcik, G Velev, G Veramendi, R Vidal, I Vila, R Vilar, I Volobouev, M Von Der Mey, D Vucinic, RG Wagner, RL Wagner, W Wagner, NB Wallace, Z Wan, C Wang, MJ Wang, SM Wang, B Ward, S Waschke, T Watanabe, D Waters, T Watts, M Weber, H Wenzel, WC Wester, B Whitehouse, AB Wicklund, E Wicklund, T Wilkes, HH Williams, P Wilson, BL Winer, D Winn, S Wolbers, D Wolinski, J Wolinski, S Wolinski, M Wolter, S Worm, X Wu, F Würthwein, J Wyss, UK Yang, W Yao, GP Yeh, P Yeh, K Yi, J Yoh, C Yosef, T Yoshida, I Yu, S Yu, Z Yu, JC Yun, L Zanello, A Zanetti, F Zetti, S Zucchelli, CDF Collaboration

Abstract:

We report a measurement of the fraction of events with a large pseudorapidity gap deltaeta within the pseudorapidity region available to the proton dissociation products X in p+p-->p+X. For a final state p of fractional momentum loss xi(p) and 4-momentum transfer squared t(p) within 0.063 is found to be 0.246+/-0.001 (stat)+/-0.042 (syst) [0.184+/-0.001 (stat)+/-0.043 (syst)]. Our results are compared with gap fractions measured in minimum bias pp collisions and with theoretical expectations.
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Search for the supersymmetric partner of the top quark in dilepton events from pp collisions at square root of s=1.8 TeV.

Phys Rev Lett 90:25 Pt 1 (2003) 251801

Authors:

D Acosta, T Affolder, H Akimoto, MG Albrow, D Ambrose, D Amidei, K Anikeev, J Antos, G Apollinari, T Arisawa, A Artikov, T Asakawa, W Ashmanskas, F Azfar, P Azzi-Bacchetta, N Bacchetta, H Bachacou, W Badgett, S Bailey, P e Barbaro, A Barbaro-Galtieri, VE Barnes, BA Barnett, S Baroiant, M Barone, G Bauer, F Bedeschi, S Behari, S Belforte, WH Bell, G Bellettini, J Bellinger, D Benjamin, J Bensinger, A Beretvas, J Berryhill, A Bhatti, M Binkley, D Bisello, M Bishai, RE Blair, C Blocker, K Bloom, B Blumenfeld, SR Blusk, A Bocci, A Bodek, G Bolla, A Bolshov, Y Bonushkin, D Bortoletto, J Boudreau, A Brandl, C Bromberg, M Brozovic, E Brubaker, N Bruner, J Budagov, HS Budd, K Burkett, G Busetto, KL Byrum, S Cabrera, P Calafiura, M Campbell, W Carithers, J Carlson, D Carlsmith, W Caskey, A Castro, D Cauz, A Cerri, L Cerrito, AW Chan, PS Chang, PT Chang, J Chapman, C Chen, YC Chen, M-T Cheng, M Chertok, G Chiarelli, I Chirikov-Zorin, G Chlachidze, F Chlebana, L Christofek, ML Chu, JY Chung, W-H Chung, YS Chung, CI Ciobanu, AG Clark, M Coca, AP Colijn, A Connolly, M Convery, J Conway, M Cordelli, J Cranshaw, R Culbertson, D Dagenhart, S D'Auria, S De Cecco, F DeJongh, S Dell'Agnello, M Dell'Orso, S Demers, L Demortier, M Deninno, D De Pedis, PF Derwent, T Devlin, C Dionisi, JR Dittmann, A Dominguez, S Donati, M D'Onofrio, T Dorigo, N Eddy, K Einsweiler, E Engels, R Erbacher, D Errede, S Errede, R Eusebi, Q Fan, S Farrington, RG Feild, JP Fernandez, C Ferretti, RD Field, I Fiori, B Flaugher, LR Flores-Castillo, GW Foster, M Franklin, J Freeman, J Friedman, Y Fukui, I Furic, S Galeotti, A Gallas, M Gallinaro, T Gao, M Garcia-Sciveres, AF Garfinkel, P Gatti, C Gay, DW Gerdes, E Gerstein, S Giagu, P Giannetti, K Giolo, M Giordani, P Giromini, V Glagolev, D Glenzinski, M Gold, N Goldschmidt, J Goldstein, G Gomez, M Goncharov, I Gorelov, AT Goshaw, Y Gotra, K Goulianos, C Green, A Gresele, G Grim, C Grosso-Pilcher, M Guenther, G Guillian, J Guimaraes da Costa, RM Haas, C Haber, SR Hahn, E Halkiadakis, C Hall, T Handa, R Handler, F Happacher, K Hara, AD Hardman, RM Harris, F Hartmann, K Hatakeyama, J Hauser, J Heinrich, A Heiss, M Hennecke, M Herndon, C Hill, A Hocker, KD Hoffman, R Hollebeek, L Holloway, S Hou, BT Huffman, R Hughes, J Huston, J Huth, H Ikeda, C Issever, J Incandela, G Introzzi, M Iori, A Ivanov, J Iwai, Y Iwata, B Iyutin, E James, M Jones, U Joshi, H Kambara, T Kamon, T Kaneko, J Kang, M Karagoz Unel, K Karr, S Kartal, H Kasha, Y Kato, TA Keaffaber, K Kelley, M Kelly, RD Kennedy, R Kephart, D Khazins, T Kikuchi, B Kilminster, BJ Kim, DH Kim, HS Kim, MJ Kim, SB Kim, SH Kim, TH Kim, YK Kim, M Kirby, M Kirk, L Kirsch, S Klimenko, P Koehn, K Kondo, J Konigsberg, A Korn, A Korytov, K Kotelnikov, E Kovacs, J Kroll, M Kruse, V Krutelyov, SE Kuhlmann, K Kurino, T Kuwabara, N Kuznetsova, AT Laasanen, N Lai, S Lami, S Lammel, J Lancaster, K Lannon, M Lancaster, R Lander, A Lath, G Latino, T LeCompte, Y Le, J Lee, SW Lee, N Leonardo, S Leone, JD Lewis, K Li, CS Lin, M Lindgren, TM Liss, JB Liu, T Liu, YC Liu, DO Litvintsev, O Lobban, NS Lockyer, A Loginov, J Loken, M Loreti, D Lucchesi, P Lukens, S Lusin, L Lyons, J Lys, R Madrak, K Maeshima, P Maksimovic, L Malferrari, M Mangano, G Manca, M Mariotti, G Martignon, M Martin, A Martin, V Martin, M Martínez, JAJ Matthews, P Mazzanti, KS McFarland, P McIntyre, M Menguzzato, A Menzione, P Merkel, C Mesropian, A Meyer, T Miao, R Miller, JS Miller, H Minato, S Miscetti, M Mishina, G Mitselmakher, Y Miyazaki, N Moggi, E Moore, R Moore, Y Morita, T Moulik, M Mulhearn, A Mukherjee, T Muller, A Munar, P Murat, S Murgia, J Nachtman, V Nagaslaev, S Nahn, H Nakada, I Nakano, R Napora, F Niell, C Nelson, T Nelson, C Neu, MS Neubauer, D Neuberger, C Newman-Holmes, C-YP Ngan, T Nigmanov, H Niu, L Nodulman, A Nomerotski, SH Oh, YD Oh, T Ohmoto, T Ohsugi, R Oishi, T Okusawa, J Olsen, W Orejudos, C Pagliarone, F Palmonari, R Paoletti, V Papadimitriou, D Partos, J Patrick, G Pauletta, M Paulini, T Pauly, C Paus, D Pellett, A Penzo, L Pescara, TJ Phillips, G Piacentino, J Piedra, KT Pitts, A Pompos, L Pondrom, G Pope, T Pratt, F Prokoshin, J Proudfoot, F Ptohos, O Pukhov, G Punzi, J Rademacker, A Rakitine, F Ratnikov, H Ray, D Reher, A Reichold, P Renton, M Rescigno, A Ribon, W Riegler, F Rimondi, L Ristori, M Riveline, WJ Robertson, T Rodrigo, S Rolli, L Rosenson, R Roser, R Rossin, C Rott, A Roy, A Ruiz, D Ryan, A Safonov, R St Denis, WK Sakumoto, D Saltzberg, C Sanchez, A Sansoni, L Santi, S Sarkar, H Sato, P Savard, A Savoy-Navarro, P Schlabach, EE Schmidt, MP Schmidt, M Schmitt, L Scodellaro, A Scott, A Scribano, A Sedov, S Seidel, Y Seiya, A Semenov, F Semeria, T Shah, MD Shapiro, PF Shepard, T Shibayama, M Shimojima, M Shochet, A Sidoti, J Siegrist, A Sill, P Sinervo, P Singh, AJ Slaughter, K Sliwa, FD Snider, R Snihur, A Solodsky, J Spalding, T Speer, M Spezziga, P Sphicas, F Spinella, M Spiropulu, L Spiegel, J Steele, A Stefanini, J Strologas, F Strumia, D Stuart, A Sukhanov, K Sumorok, T Suzuki, T Takano, R Takashima, K Takikawa, P Tamburello, M Tanaka, B Tannenbaum, M Tecchio, RJ Tesarek, PK Teng, K Terashi, S Tether, J Thom, AS Thompson, E Thomson, R Thurman-Keup, P Tipton, S Tkaczyk, D Toback, K Tollefson, D Tonelli, M Tonnesmann, H Toyoda, W Trischuk, JF de Troconiz, J Tseng, D Tsybychev, N Turini, F Ukegawa, T Unverhau, T Vaiciulis, J Valls, A Varganov, E Vataga, S Vejcik, G Velev, G Veramendi, R Vidal, I Vila, R Vilar, I Volobouev, M von der Mey, D Vucinic, RG Wagner, RL Wagner, W Wagner, NB Wallace, Z Wan, C Wang, MJ Wang, SM Wang, B Ward, S Waschke, T Watanabe, D Waters, T Watts, M Weber, H Wenzel, WC Wester, B Whitehouse, AB Wicklund, E Wicklund, T Wilkes, HH Williams, P Wilson, BL Winer, D Winn, S Wolbers, D Wolinski, J Wolinski, S Wolinski, M Wolter, S Worm, X Wu, F Würthwein, J Wyss, UK Yang, W Yao, GP Yeh, P Yeh, K Yi, J Yoh, C Yosef, T Yoshida, I Yu, S Yu, Z Yu, JC Yun, L Zanello, A Zanetti, F Zetti, S Zucchelli, CDF Collaboration

Abstract:

We have searched for pair production of the supersymmetric partner of the top quark (stop) in 107 pb(-1) of pp collisions at square root of s=1.8 TeV collected by the Collider Detector at Fermilab (CDF). Each stop is assumed to decay into a lepton, bottom quark, and supersymmetric neutrino. Such a scenario would give rise to events with two leptons, two hadronic jets, and a substantial imbalance of transverse energy. No evidence of such a stop signal has been found. We exclude stop masses in the region (80
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Search for the supersymmetric partner of the top quark in dilepton events from pp̄ collisions at √s = 1.8 TeV

Physical Review Letters 90:25 I (2003) 2518011-2518017

Authors:

D Acosta, T Affolder, H Akimoto, MG Albrow, D Ambrose, D Amidei, K Anikeev, J Antos, G Apollinari, T Arisawa, A Artikov, T Asakawa, W Ashmanskas, F Azfar, P Azzi-Bacchetta, N Bacchetta, H Bachacou, W Badgett, S Bailey, P de Barbaro, A Barbaro-Galtieri, VE Barnes, BA Barnett, S Baroiant, M Barone, G Bauer, F Bedeschi, S Behari, S Belforte, WH Bell, G Bellettini, J Bellinger, D Benjamin, J Bensinger, A Beretvas, J Berryhill, A Bhatti, M Binkley, D Bisello, M Bishai, RE Blair, C Blocker, K Bloom, B Blumenfeld, SR Blusk, A Bocci, A Bodek, G Bolla, A Bolshov, Y Bonushkin, D Bortoletto, J Boudreau, A Brandl, C Bromberg, M Brozovic, E Brubaker, N Bruner, J Budagov, HS Budd, K Burkett, G Busetto, KL Byrum, S Cabrera, P Calafiura, M Campbell, W Carithers, J Carlson, D Carlsmith, W Caskey, A Castro, D Cauz, A Cerri, L Cerrito, AW Chan, PS Chang, PT Chang, J Chapman, C Chen, YC Chen, MT Cheng, M Chertok, G Chiarelli, I Chirikov-Zorin, G Chlachidze, F Chlebana, L Christofek, ML Chu, JY Chung, WH Chung, YS Chung, CI Ciobanu, AG Clark, M Coca, AP Colijn, A Connolly, M Convery, J Conway, M Cordelli, J Cranshaw, R Culbertson

Abstract:

The article discussed about the supersymmetric particles of the top quark in Dilepton events. The Collider Detector at Fermilab was used to gather supersymmetry particles. Due to the high mass, stop decays into the top quark were found kinematically inaccessible. The choice of the renormalization and factorization scale was considered as the source of uncertainty on the number of expected stop events.
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Adapting SAM for CDF

ArXiv cs/0306112 (2003)

Authors:

D Bonham, G Garzoglio, R Herber, J Kowalkowski, D Litvintsev, L Lueking, M Paterno, D Petravick, L Piccoli, R Pordes, N Stanfield, I Terekhov, J Trumbo, J Tseng, S Veseli, M Votava, V White, T Huffman, S Stonjek, K Waltkins, P Crosby, D Waters, R St Denis

Abstract:

The CDF and D0 experiments probe the high-energy frontier and as they do so have accumulated hundreds of Terabytes of data on the way to petabytes of data over the next two years. The experiments have made a commitment to use the developing Grid based on the SAM system to handle these data. The D0 SAM has been extended for use in CDF as common patterns of design emerged to meet the similar requirements of these experiments. The process by which the merger was achieved is explained with particular emphasis on lessons learned concerning the database design patterns plus realization of the use cases.
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Erratum: Measurement of the tt̄ production cross in pp̄ collisions at √s= 1.8 Tev (Physical Review D (2001) 64 (32002))

Physical Review D - Particles, Fields, Gravitation and Cosmology 67:11 (2003) 1199011-1199012

Authors:

T Affolder, H Akimoto, A Akopian, MG Albrow, P Amaral, SR Amendolia, D Amidei, K Anikeev, J Antos, G Apollinari, T Arisawa, T Asakawa, W Ashmanskas, F Azfar, P Azzi-Bacchetta, N Bacchetta, MW Bailey, S Bailey, P de Barbaro, A Barbaro-Galtieri, VE Barnes, BA Barnett, S Baroiant, M Barone, G Bauer, F Bedeschi, S Belforte, WH Bell, G Bellettini, J Bellinger, D Benjamin, J Bensinger, A Beretvas, JP Berge, J Berryhill, B Bevensee, A Bhatti, M Binkley, D Bisello, M Bishai, RE Blair, C Blocker, K Bloom, B Blumenfeld, SR Blusk, A Bocci, A Bodek, W Bokhari, G Bolla, Y Bonushkin, D Bortoletto, J Boudreau, A Brandl, S van den Brink, C Bromberg, M Brozovic, N Bruner, E Buckley-Geer, J Budagov, HS Budd, K Burkett, G Busetto, A Byon-Wagner, KL Byrum, P Calafiura, M Campbell, W Carithers, J Carlson, D Carlsmith, W Caskey, J Cassada, A Castro, D Cauz, A Cerri, AW Chan, PS Chang, PT Chang, J Chapman, C Chen, YC Chen, MT Cheng, M Chertok, G Chiarelli, I Chirikov-Zorin, G Chlachidze, F Chlebana, L Christofek, ML Chu, YS Chung, CI Ciobanu, AG Clark, A Connolly, J Conway, M Cordelli, J Cranshaw, D Cronin-Hennessy, R Cropp, R Culbertson, D Dagenhart, S D'Auria