Search for scalar top quark production in p)(p)over-bar collisions at root s=1.8 TeV

Affolder, T; Akimoto, H; Akopian, A; Albrow, Mg; Amaral, P; Amendolia, Sr; Amidei, D; Anikeev, K; Antos, J; Apollinari, G; Arisawa, T; Asakawa, T; Ashmanskas, W; Atac, M; Azfar, F; Azzi Bacchetta, P; Bacchetta, N; Bailey, Mw; Bailey, S; de Barbaro, P; Barbaro Galtieri, A; Barnes, Ve; Barnett, Ba; Barone, M; Bauer, G; Bedeschi, F; Belforte, S; Bellettini, G; Bellinger, J; Benjamin, D; Bensinger, J; Beretvas, A; Berge, Jp; Berryhill, J; Bertolucci, S; Bevensee, B; Bhatti, A; Bigongiari, C; Binkley, M; Bisello, D; Blair, Re; Blocker, C; Bloom, K; Blumenfeld, B; Blusk, Sr; Bocci, A; Bodek, A; Bokhari, W; Bolla, G; Bonushkin, Y; Bortoletto, D; Boudreau, J; Brandl, A; van den Brink, S; Bromberg, C; Brozovic, M; Bruner, N; Buckley Geer, E; Budagov, J; Budd, Hs; Burkett, K; Busetto, G; Byon Wagner, A; Byrum, Kl; Campbell, M; Caner, A; Carithers, W; Carlson, J; Carlsmith, D; Cassada, J; Castro, A; Cauz, D; Cerri, A; Chan, Aw; Chang, Ps; Chang, Pt; Chapman, J; Chen, C; Chen, Yc; Cheng, Mt; Chertok, M; 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Hao, W; Happacher, F; Hara, K; Hardman, Ad; Harris, Rm; Hartmann, F; Hatakeyama, K; Hauser, J; Heinrich, J; Heiss, A; Herndon, M; Hinrichsen, B; Hoffman, Kd; Holck, C; Hollebeek, R; Holloway, L; Hughes, R; Huston, J; Huth, J; Ikeda, H; Incagli, M; Incandela, J; Introzzi, G; Iwai, J; Iwata, Y; James, E; Jensen, H; Jones, M; Joshi, U; Kambara, H; Kamon, T; Kaneko, T; Karr, K; Kasha, H; Kato, Y; Keaffaber, Ta; Kelley, K; Kelly, M; Kennedy, Rd; Kephart, R; Khazins, D; Kikuchi, T; Kirk, M; Kim, Bj; Kim, Hs; Kim, Mj; Kim, Sh; Kim, Yk; Kirsch, L; Klimenko, S; Koehn, P; Kongeter, A; Kondo, K; Konigsberg, J; Kordas, K; Korn, A; Korytov, A; Kovacs, E; Kroll, J; Kruse, M; Kuhlmann, Se; Kurino, K; Kuwabara, T; Laasanen, At; Lai, N; Lami, S; Lammel, S; Lamoureux, Ji; Lancaster, M; Latino, G; LeCompte, T; Lee, Am; Leone, S; Lewis, Jd; Lindgren, M; Liss, Tm; Liu, Jb; Liu, Yc; Lockyer, N; Loken, J; Loreti, M; Lucchesi, D; Lukens, P; Lusin, S; Lyons, L; Lys, J; Madrak, R; Maeshima, K; Maksimovic, P; Malferrari, L; Mangano, M; Mariotti, M; Martignon, G; Martin, A; Matthews, Jaj; Mazzanti, P; McFarland, Ks; McIntyre, P; McKigney, E; Menguzzato, M; Menzione, A; Meschi, E; Mesropian, C; Miao, T; Miller, R; Miller, Js; Minato, H; Miscetti, S; Mishina, M; Moggi, N; Moore, E; Moore, R; Morita, Y; Mukherjee, A; Muller, T; Munar, A; Murat, P; Murgia, S; Musy, M; Nachtman, J; Nahn, S; Nakada, H; Nakaya, T; Nakano, I; Nelson, C; Neuberger, D; Newman Holmes, C; Ngan, Cyp; Nicolaidi, P; Niu, H; Nodulman, L; Nomerotski, A; Oh, Sh; Ohmoto, T; Ohsugi, T; Oishi, R; Okusawa, T; Olsen, J; Pagliarone, C; Palmonari, F; Paoletti, R; Papadimitriou, V; Pappas, Sp; Partos, D; Patrick, J; Pauletta, G; Paulini, M; Paus, C; Pescara, L; Phillips, Tj; Piacentino, Giovanni Maria; Pitts, Kt; Plunkett, R; Pompos, A; Pondrom, L; Pope, G; Popovic, M; Prokoshin, F; Proudfoot, J; Ptohos, F; Punzi, G; Ragan, K; Rakitine, A; Reher, D; Reichold, A; Riegler, W; Ribon, A; Rimondi, F; Ristori, L; Robertson, Wj; Robinson, A; Rodrigo, T; Rolli, S; 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doi:10.1103/PhysRevLett.84.5273

We have searched for direct production of scalar top quarks at the Collider Detector at Fermilab in 88 pb(-1) of p (p) over bar collisions at root s = 1.8 TeV. We assume the scalar top quark decays into either a bottom quark and a chargino or a bottom quark, a lepton, and a scalar neutrino. The event signature for both decay scenarios is a lepton, missing transverse energy, and at least two b-quark jets. For a chargino mass of 90 GeV/c(2) and scalar neutrino masses of at least 40 GeV/c(2), we find no evidence for scalar top production and present upper limits on the production cross section in both decay scenarios. RI Lancaster, Mark/C-1693-2008; Vucinic, Dejan/C-2406-2008; Prokoshin, Fedor/E-2795-2012; Chiarelli, Giorgio/E-8953-2012; Azzi, Patrizia/H-5404-2012

Digital Object Identifier (DOI):	http://dx.doi.org/10.1103/PhysRevLett.84.5273
Codice identificativo ISI:	WOS:000087411600010
Codice identificativo Scopus:	2-s2.0-85030591860
Handle:	http://hdl.handle.net/11695/5853
Abstract:	We have searched for direct production of scalar top quarks at the Collider Detector at Fermilab in 88 pb(-1) of p (p) over bar collisions at root s = 1.8 TeV. We assume the scalar top quark decays into either a bottom quark and a chargino or a bottom quark, a lepton, and a scalar neutrino. The event signature for both decay scenarios is a lepton, missing transverse energy, and at least two b-quark jets. For a chargino mass of 90 GeV/c(2) and scalar neutrino masses of at least 40 GeV/c(2), we find no evidence for scalar top production and present upper limits on the production cross section in both decay scenarios. RI Lancaster, Mark/C-1693-2008; Vucinic, Dejan/C-2406-2008; Prokoshin, Fedor/E-2795-2012; Chiarelli, Giorgio/E-8953-2012; Azzi, Patrizia/H-5404-2012
Titolo:	Search for scalar top quark production in p)(p)over-bar collisions at root s=1.8 TeV
Autori:	Affolder T Akimoto H Akopian A Albrow MG Amaral P Amendolia SR Amidei D Anikeev K Antos J Apollinari G Arisawa T Asakawa T Ashmanskas W Atac M Azfar F Azzi Bacchetta P Bacchetta N Bailey MW Bailey S de Barbaro P Barbaro Galtieri A Barnes VE Barnett BA Barone M Bauer G Bedeschi F Belforte S Bellettini G Bellinger J Benjamin D Bensinger J Beretvas A Berge JP Berryhill J Bertolucci S Bevensee B Bhatti A Bigongiari C Binkley M Bisello D Blair RE Blocker C Bloom K Blumenfeld B Blusk SR Bocci A Bodek A Bokhari W Bolla G Bonushkin Y Bortoletto D Boudreau J Brandl A van den Brink S Bromberg C Brozovic M Bruner N Buckley Geer E Budagov J Budd HS Burkett K Busetto G Byon Wagner A Byrum KL Campbell M Caner A Carithers W Carlson J Carlsmith D Cassada J Castro A Cauz D Cerri A Chan AW Chang PS Chang PT Chapman J Chen C Chen YC Cheng MT Chertok M Chiarelli G Chirikov Zorin I Chlachidze G Chlebana F Christofek L Chu ML Cihangir S Ciobanu CI Clark AG Cobal M Cocca E Connolly A Conway J Cooper J Cordelli M Costanzo D Cranshaw J Cronin Hennessy D Cropp R Culbertson R Dagenhart D DeJongh F Dell'Agnello S Dell'Orso M Demina R Demortier L Deninno M Derwent PF Devlin T Dittmann JR Donati S Done J Dorigo T Eddy N Einsweiler K Elias JE Engels E Erdmann W Errede D Errede S Fan Q Feild RG Ferretti C Fiori I Flaugher B Foster GW Franklin M Freeman J Friedman J Fukui Y Galeotti S Gallinaro M Gao T Garcia Sciveres M Garfinkel AF Gatti P Gay C Geer S Gerdes DW Giannetti P Giromini P Glagolev V Gold M Goldstein J Gordon A Goshaw AT Gotra Y Goulianos K Grassmann H Green C Groer L Grosso Pilcher C Guenther M Guillian G da Costa JG Guo RS Haber C Hafen E Hahn SR Hall C Handa T Handler R Hao W Happacher F Hara K Hardman AD Harris RM Hartmann F Hatakeyama K Hauser J Heinrich J Heiss A Herndon M Hinrichsen B Hoffman KD Holck C Hollebeek R Holloway L Hughes R Huston J Huth J Ikeda H Incagli M Incandela J Introzzi G Iwai J Iwata Y James E Jensen H Jones M Joshi U Kambara H Kamon T Kaneko T Karr K Kasha H Kato Y Keaffaber TA Kelley K Kelly M Kennedy RD Kephart R Khazins D Kikuchi T Kirk M Kim BJ Kim HS Kim MJ Kim SH Kim YK Kirsch L Klimenko S Koehn P Kongeter A Kondo K Konigsberg J Kordas K Korn A Korytov A Kovacs E Kroll J Kruse M Kuhlmann SE Kurino K Kuwabara T Laasanen AT Lai N Lami S Lammel S Lamoureux JI Lancaster M Latino G LeCompte T Lee AM Leone S Lewis JD Lindgren M Liss TM Liu JB Liu YC Lockyer N Loken J Loreti M Lucchesi D Lukens P Lusin S Lyons L Lys J Madrak R Maeshima K Maksimovic P Malferrari L Mangano M Mariotti M Martignon G Martin A Matthews JAJ Mazzanti P McFarland KS McIntyre P McKigney E Menguzzato M Menzione A Meschi E Mesropian C Miao T Miller R Miller JS Minato H Miscetti S Mishina M Moggi N Moore E Moore R Morita Y Mukherjee A Muller T Munar A Murat P Murgia S Musy M Nachtman J Nahn S Nakada H Nakaya T Nakano I Nelson C Neuberger D Newman Holmes C Ngan CYP Nicolaidi P Niu H Nodulman L Nomerotski A Oh SH Ohmoto T Ohsugi T Oishi R Okusawa T Olsen J Pagliarone C Palmonari F Paoletti R Papadimitriou V Pappas SP Partos D Patrick J Pauletta G Paulini M Paus C Pescara L Phillips TJ PIACENTINO, Giovanni Maria Pitts KT Plunkett R Pompos A Pondrom L Pope G Popovic M Prokoshin F Proudfoot J Ptohos F Punzi G Ragan K Rakitine A Reher D Reichold A Riegler W Ribon A Rimondi F Ristori L Robertson WJ Robinson A Rodrigo T Rolli S Rosenson L Roser R Rossin R Sakumoto WK Saltzberg D Sansoni A Santi L Sato H Savard P Schlabach P Schmidt EE Schmidt MP Schmitt M Scodellaro L Scott A Scribano A Segler S Seidel S Seiya Y Semenov A Semeria F Shah T Shapiro MD Shepard PF Shibayama T Shimojima M Shochet M Siegrist J Signorelli G Sill A Sinervo P Singh P Slaughter AJ Sliwa K Smith C Snider FD Solodsky A Spalding J Speer T Sphicas P Spinella F Spiropulu M Spiegel L Stanco L Steele J Stefanini A Strologas J Strumia F Stuart D Sumorok K Suzuki T Takashima R Takikawa K Tanaka M Takano T Tannenbaum B Taylor W Tecchio M Teng PK Terashi K Tether S Theriot D Thurman Keup R Tipton P Tkaczyk S Tollefson K Tollestrup A Toyoda H Trischuk W de Troconiz JF Tseng J Turini N Ukegawa F Valls J Vejcik S Velev G Vidal R Vilar R Volobouev I Vucinic D Wagner RG Wagner RL Wahl J Wallace NB Walsh AM Wang C Wang CH Wang MJ Watanabe T Waters D Watts T Webb R Wenzel H Wester WC Wicklund AB Wicklund E Williams HH Wilson P Winer BL Winn D Wolbers S Wolinski D Wolinski J Wolinski S Worm S Wu X Wyss J Yagil A Yao W Yeh GP Yeh P Yoh J Yosef C Yoshida T Yu I Yu S Zanetti A Zetti F Zucchelli S. mostra contributor esterni nascondi contributor esterni
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