Search for chargino-neutralino associated production at the Fermilab tevatron collider

Abe, F; Akimoto, H; Akopian, A; Albrow, Mg; Amadon, A; Amendolia, Sr; Amidei, D; Antos, J; Aota, S; Apollinari, G; Arisawa, T; Asakawa, T; Ashmanskas, W; Atac, M; Azzi Bacchetta, P; Bacchetta, N; Bagdasarov, S; Bailey, Mw; de Barbaro, P; Barbaro Galtieri, A; Barnes, Ve; Barnett, Ba; Barone, M; Bauer, G; Baumann, T; Bedeschi, F; Behrends, S; Belforte, S; Bellettini, G; Bellinger, J; Benjamin, D; Bensinger, J; Beretvas, A; Berge, Jp; Berryhill, J; Bertolucci, S; Bettelli, S; Bevensee, B; Bhatti, A; Biery, K; Bigongiari, C; Binkley, M; Bisello, D; Blair, Re; Blocker, C; Blusk, S; Bodek, A; Bokhari, W; Bolla, G; Bonushkin, Y; Bortoletto, R; Boudreau, J; Breccia, L; Bromberg, C; Bruner, N; Brunetti, R; Buckley Geer, E; Budd, Hs; Burkett, K; Busetto, G; Byon Wagner, A; Byrum, Kl; Campbell, M; Caner, A; Carithers, W; Carlsmith, D; Cassada, J; Castro, A; Cauz, D; Cerri, A; Chang, Ps; Chang, Pt; Chao, Hy; Chapman, J; Cheng, Mt; Chertok, M; Chiarelli, G; Chiou, Cn; Chlebana, F; Christofek, L; Chu, Ml; Cihangir, S; Clark, Ag; Cobal, M; Cocca, E; Contreras, M; Conway, J; Cooper, J; Cordelli, M; Costanzo, D; Couyoumtzelis, C; Cronin Hennessy, D; Culbertson, R; Dagenhart, D; Daniels, T; 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; Ely, R; Engels, E; Erdmann, W; Errede, N; Errede, S; Fan, Q; Feild, Rg; Feng, Z; Ferretti, C; Fiori, I; Flaugher, B; Foster, Gw; Franklin, M; Freeman, J; Friedman, J; Frisch, H; Fukui, Y; Gadomski, S; Galeotti, S; Gallinaro, M; Ganel, O; Garcia Sciveres, M; Garfinkel, Af; Gay, C; Geer, S; Gerdes, Dw; Giannetti, P; Giokaris, N; Giromini, P; Giusti, G; Gold, M; Gordon, A; Goshaw, At; Gotra, Y; Goulianos, K; Grassmann, H; Groer, L; Grosso Pilcher, C; Guillian, G; da Costa JG,; Guo, Rs; Haber, C; Hafen, E; Hahn, Sr; Hamilton, R; Handa, T; Handler, R; Happacher, F; Hara, K; Hardman, Ad; Harris, Rm; Hartmann, F; Hauser, J; Hayashi, E; Heinrich, J; Hao, W; Hinrichsen, B; Hoffman, Kd; Hohlmann, M; Holck, C; Hollebeek, R; Holloway, L; Huang, Z; Huffman, Bt; Hughes, R; Huston, J; Huth, J; Ikeda, H; Incagli, M; Incandela, J; Introzzi, G; Iwai, J; Iwata, Y; James, E; Jensen, H; Joshi, U; Kajfasz, E; Kambara, H; Kamon, T; Kaneko, T; Karr, K; Kasha, H; Kato, Y; Kaeffaber, Ta; Kelley, K; Kennedy, Rd; Kephart, R; Kestenbaum, D; Khazins, D; Kikuchi, T; Kim, Bj; Kim, Hs; Kim, Sh; Kim, Yk; Kirsch, L; Klimenko, S; Knoblauch, D; Koehn, P; Kongeter, A; Kondo, K; Konigsberg, J; Kordas, K; Korytov, A; Kovacs, E; Kowald, W; Kroll, J; Kruse, M; Kuhlmann, Se; Kuns, E; Kurino, K; Kuwabara, T; Laasanen, At; Lami, S; Lammel, S; Lamoureux, Ji; Lancaster, M; Lanzoni, M; Latino, G; LeCompte, T; Leone, S; Lewis, Jd; Limon, P; Lindgren, M; Liss, Tm; Liu, Jb; Liu, Yc; Lockyer, N; Long, O; Loomis, C; Loreti, M; Lucchesi, D; Lukens, P; Lusin, S; Lys, J; Maeshima, K; Maksimovic, P; Mangano, M; Mariotti, M; Marriner, Jp; Martin, A; Matthews, Jaj; Mazzanti, P; McIntyre, P; Melese, P; Menguzzato, M; Menzione, A; Meschi, E; Metzler, S; Miao, C; Miao, T; Michail, G; Miller, R; Minato, H; Miscetti, S; Mishina, M; Miyashita, S; Moggi, N; Moore, E; Morita, Y; Mukherjee, A; Muller, T; Murat, P; Murgia, S; Nakada, H; Nakano, I; Nelson, C; Neuberger, D; Newman Holmes, C; Ngan, Cyp; Nodulman, L; Nomerotski, A; Oh, Sh; Ohmoto, T; Ohsugi, T; Oishi, R; Okabe, M; Okusawa, T; Olsen, J; Pagliarone, C; Paoletti, R; Papadimitriou, V; Pappas, Sp; Parashar, N; Parri, A; Patrick, J; Pauletta, G; Paulini, M; Perazzo, A; Pescara, L; Peters, Md; Phillips, Tj; Piacentino, Giovanni Maria; Pillai, M; Pitts, Kt; Plunkett, R; Pompos, A; Pondrom, L; Proudfoot, J; Ptohos, F; Punzi, G; Ragan, K; Reher, D; Reischl, M; Ribon, A; Rimondi, F; Ristori, L; Robertson, Wj; Rodrigo, T; Rolli, S; Rosenson, L; Roser, R; Saab, T; Sakumoto, Wk; Saltzberg, D; Sansoni, A; Santi, L; Sato, H; Schlabach, P; Schmidt, Ee; Schmidt, Mp; Scott, A; Scribano, A; Segler, S; Seidel, S; Seiya, Y; Semeria, F; Shah, T; Shapiro, Md; Shaw, Nm; Shepard, Pf; Shibayama, T; Shimojima, M; Shochet, M; Siegrist, J; Sill, A; Sinervo, P; Singh, P; Sliwa, K; Smith, C; Snider, Fd; Spalding, J; Speer, T; Sphicas, P; Spinella, F; Spiropulu, M; Spiegel, L; Stanco, L; Steele, J; Stefanini, A; Strohmer, R; Strologas, J; Strumia, F; Stuart, D; Sumorok, K; Suzuki, J; Suzuki, T; Takahashi, T; Takano, T; Takashima, R; Takikawa, K; Tanaka, M; Tannenbaum, B; Tartarelli, F; Taylor, W; Tecchio, M; Teng, Pk; Teramoto, Y; Terashi, K; Tether, S; Theriot, D; Thomas, Tl; Thurman Keup, R; Timko, M; Tipton, P; Titov, A; Tkaczyk, S; Toback, D; Tollefson, K; Tollestrup, A; Toyoda, H; Trischuk, W; de Troconiz JF,; Truitt, S; Tseng, J; Turini, N; Uchida, T; Ukegawa, F; Valls, J; van den Brink SC,; Vejcik, S; Velev, G; Vidal, R; Vilar, R; Vucinic, D; Wagner, Rg; Wagner, Rl; Wahl, J; Wallace, Nb; Walsh, Am; Wang, C; Wang, Ch; Wang, Mj; Warburton, A; Watanabe, T; Watts, T; Webb, R; Wei, C; Wenzel, H; Wester, Wc; Wicklund, Ab; Wicklund, E; Wilkinson, R; Williams, Hh; Wilson, P; Winer, Bl; Winn, D; Wolinski, D; Wolinski, J; Worm, S; Wu, X; Wyss, J; Yagil, A; Yao, W; Yasuoka, K; Yeh, Gp; Yeh, P; Yoh, J; Yosef, C; Yoshida, T; Yu, I; Zanetti, A; Zetti, F; Zucchelli, S.

doi:10.1103/PhysRevLett.80.5275

We have searched in p (p) over bar collisions at root s = 1.8 TeV for events with three charged leptons and missing transverse energy. In the minimal supersymmetric standard model, we expect trilepton events from chargino-neutralino (<(chi)over tilde>(+/-)(1)<(chi)over tilde>(0)(2) pair production, with subsequent decay into leptons. We observe no candidate e(+)e(-)e(+/-), e(+)e(-)mu(+/-), e(+/-)mu(+)mu(-), or mu(+)mu(-)mu(+/-) events in 106 pb(-1) integrated luminosity. We present limits on the sum of the branching ratios times cross section for the four channels: sigma(<(chi)over tilde>1)(+/-)(<(chi)over tilde>2)B-0(<(chi)over tilde>(+/-)(1)<(chi)over tilde>(0)(2) --> 3l + X) < 0.34 pb, M(<(chi)over tilde>1)(+/-) > 81.5 GeV/c(2), and M(<(chi)over tilde>2)(0) > 82.2 GeV/c(2) for tan beta = 2, mu = -600 GeV/c(2), and M-(q over tilde) = M-(g over tilde). RI Lancaster, Mark/C-1693-2008; Vucinic, Dejan/C-2406-2008; Peters, Michael/B-4973-2009; Nomerotski, Andrei/A-5169-2010; Chiarelli, Giorgio/E-8953-2012; Azzi, Patrizia/H-5404-2012

Digital Object Identifier (DOI):	http://dx.doi.org/10.1103/PhysRevLett.80.5275
Codice identificativo ISI:	WOS:000074156300010
Codice identificativo Scopus:	2-s2.0-4243679523
Handle:	http://hdl.handle.net/11695/6646
Abstract:	We have searched in p (p) over bar collisions at root s = 1.8 TeV for events with three charged leptons and missing transverse energy. In the minimal supersymmetric standard model, we expect trilepton events from chargino-neutralino (<(chi)over tilde>(+/-)(1)<(chi)over tilde>(0)(2) pair production, with subsequent decay into leptons. We observe no candidate e(+)e(-)e(+/-), e(+)e(-)mu(+/-), e(+/-)mu(+)mu(-), or mu(+)mu(-)mu(+/-) events in 106 pb(-1) integrated luminosity. We present limits on the sum of the branching ratios times cross section for the four channels: sigma(<(chi)over tilde>1)(+/-)(<(chi)over tilde>2)B-0(<(chi)over tilde>(+/-)(1)<(chi)over tilde>(0)(2) --> 3l + X) < 0.34 pb, M(<(chi)over tilde>1)(+/-) > 81.5 GeV/c(2), and M(<(chi)over tilde>2)(0) > 82.2 GeV/c(2) for tan beta = 2, mu = -600 GeV/c(2), and M-(q over tilde) = M-(g over tilde). RI Lancaster, Mark/C-1693-2008; Vucinic, Dejan/C-2406-2008; Peters, Michael/B-4973-2009; Nomerotski, Andrei/A-5169-2010; Chiarelli, Giorgio/E-8953-2012; Azzi, Patrizia/H-5404-2012
Titolo:	Search for chargino-neutralino associated production at the Fermilab tevatron collider
Autori:	Abe F Akimoto H Akopian A Albrow MG Amadon A Amendolia SR Amidei D Antos J Aota S Apollinari G Arisawa T Asakawa T Ashmanskas W Atac M Azzi Bacchetta P Bacchetta N Bagdasarov S Bailey MW de Barbaro P Barbaro Galtieri A Barnes VE Barnett BA Barone M Bauer G Baumann T Bedeschi F Behrends S Belforte S Bellettini G Bellinger J Benjamin D Bensinger J Beretvas A Berge JP Berryhill J Bertolucci S Bettelli S Bevensee B Bhatti A Biery K Bigongiari C Binkley M Bisello D Blair RE Blocker C Blusk S Bodek A Bokhari W Bolla G Bonushkin Y Bortoletto R Boudreau J Breccia L Bromberg C Bruner N Brunetti R Buckley Geer E Budd HS Burkett K Busetto G Byon Wagner A Byrum KL Campbell M Caner A Carithers W Carlsmith D Cassada J Castro A Cauz D Cerri A Chang PS Chang PT Chao HY Chapman J Cheng MT Chertok M Chiarelli G Chiou CN Chlebana F Christofek L Chu ML Cihangir S Clark AG Cobal M Cocca E Contreras M Conway J Cooper J Cordelli M Costanzo D Couyoumtzelis C Cronin Hennessy D Culbertson R Dagenhart D Daniels T 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 Ely R Engels E Erdmann W Errede N Errede S Fan Q Feild RG Feng Z Ferretti C Fiori I Flaugher B Foster GW Franklin M Freeman J Friedman J Frisch H Fukui Y Gadomski S Galeotti S Gallinaro M Ganel O Garcia Sciveres M Garfinkel AF Gay C Geer S Gerdes DW Giannetti P Giokaris N Giromini P Giusti G Gold M Gordon A Goshaw AT Gotra Y Goulianos K Grassmann H Groer L Grosso Pilcher C Guillian G da Costa JG Guo RS Haber C Hafen E Hahn SR Hamilton R Handa T Handler R Happacher F Hara K Hardman AD Harris RM Hartmann F Hauser J Hayashi E Heinrich J Hao W Hinrichsen B Hoffman KD Hohlmann M Holck C Hollebeek R Holloway L Huang Z Huffman BT Hughes R Huston J Huth J Ikeda H Incagli M Incandela J Introzzi G Iwai J Iwata Y James E Jensen H Joshi U Kajfasz E Kambara H Kamon T Kaneko T Karr K Kasha H Kato Y Kaeffaber TA Kelley K Kennedy RD Kephart R Kestenbaum D Khazins D Kikuchi T Kim BJ Kim HS Kim SH Kim YK Kirsch L Klimenko S Knoblauch D Koehn P Kongeter A Kondo K Konigsberg J Kordas K Korytov A Kovacs E Kowald W Kroll J Kruse M Kuhlmann SE Kuns E Kurino K Kuwabara T Laasanen AT Lami S Lammel S Lamoureux JI Lancaster M Lanzoni M Latino G LeCompte T Leone S Lewis JD Limon P Lindgren M Liss TM Liu JB Liu YC Lockyer N Long O Loomis C Loreti M Lucchesi D Lukens P Lusin S Lys J Maeshima K Maksimovic P Mangano M Mariotti M Marriner JP Martin A Matthews JAJ Mazzanti P McIntyre P Melese P Menguzzato M Menzione A Meschi E Metzler S Miao C Miao T Michail G Miller R Minato H Miscetti S Mishina M Miyashita S Moggi N Moore E Morita Y Mukherjee A Muller T Murat P Murgia S Nakada H Nakano I Nelson C Neuberger D Newman Holmes C Ngan CYP Nodulman L Nomerotski A Oh SH Ohmoto T Ohsugi T Oishi R Okabe M Okusawa T Olsen J Pagliarone C Paoletti R Papadimitriou V Pappas SP Parashar N Parri A Patrick J Pauletta G Paulini M Perazzo A Pescara L Peters MD Phillips TJ PIACENTINO, Giovanni Maria Pillai M Pitts KT Plunkett R Pompos A Pondrom L Proudfoot J Ptohos F Punzi G Ragan K Reher D Reischl M Ribon A Rimondi F Ristori L Robertson WJ Rodrigo T Rolli S Rosenson L Roser R Saab T Sakumoto WK Saltzberg D Sansoni A Santi L Sato H Schlabach P Schmidt EE Schmidt MP Scott A Scribano A Segler S Seidel S Seiya Y Semeria F Shah T Shapiro MD Shaw NM Shepard PF Shibayama T Shimojima M Shochet M Siegrist J Sill A Sinervo P Singh P Sliwa K Smith C Snider FD Spalding J Speer T Sphicas P Spinella F Spiropulu M Spiegel L Stanco L Steele J Stefanini A Strohmer R Strologas J Strumia F Stuart D Sumorok K Suzuki J Suzuki T Takahashi T Takano T Takashima R Takikawa K Tanaka M Tannenbaum B Tartarelli F Taylor W Tecchio M Teng PK Teramoto Y Terashi K Tether S Theriot D Thomas TL Thurman Keup R Timko M Tipton P Titov A Tkaczyk S Toback D Tollefson K Tollestrup A Toyoda H Trischuk W de Troconiz JF Truitt S Tseng J Turini N Uchida T Ukegawa F Valls J van den Brink SC Vejcik S Velev G Vidal R Vilar R Vucinic D Wagner RG Wagner RL Wahl J Wallace NB Walsh AM Wang C Wang CH Wang MJ Warburton A Watanabe T Watts T Webb R Wei C Wenzel H Wester WC Wicklund AB Wicklund E Wilkinson R Williams HH Wilson P Winer BL Winn D Wolinski D Wolinski J Worm S Wu X Wyss J Yagil A Yao W Yasuoka K Yeh GP Yeh P Yoh J Yosef C Yoshida T Yu I Zanetti A Zetti F Zucchelli S. mostra contributor esterni nascondi contributor esterni
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