Article

Search for supersymmetry with gauge-mediated breaking in diphoton events at D0.

V M Abazov, B Abbott, M Abolins, B S Acharya, D L Adams, M Adams, T Adams, M Agelou, J-L Agram, S N Ahmed, S H Ahn, G D Alexeev, G Alkhazov, A Alton, G Alverson, G A Alves, S Anderson, B Andrieu, Y Arnoud, A Askew, B Asman, O Atramentov, C Autermann, C Avila, L Babukhadia, T C Bacon, A Baden, S Baffioni, B Baldin, P W Balm, S Banerjee, E Barberis, P Bargassa, P Baringer, C Barnes, J Barreto, J F Bartlett, U Bassler, D Bauer, A Bean, S Beauceron, F Beaudette, M Begel, A Bellavance, S B Beri, G Bernardi, R Bernhard, I Bertram, M Besançon, A Besson, R Beuselinck, V A Bezzubov, P C Bhat, V Bhatnagar, M Bhattacharjee, M Binder, A Bischoff, K M Black, I Blackler, G Blazey, F Blekman, D Bloch, U Blumenschein, A Boehnlein, O Boeriu, T A Bolton, P Bonamy, F Borcherding, G Borissov, K Bos, T Bose, C Boswell, A Brandt, G Briskin, R Brock, G Brooijmans, A Bross, N J Buchanan, D Buchholz, M Buehler, V Buescher, S Burdin, T H Burnett, E Busato, J M Butler, J Bystricky, F Canelli, W Carvalho, B C K Casey, D Casey, N M Cason, H Castilla-Valdez, S Chakrabarti, D Chakraborty, K M Chan, A Chandra, D Chapin, F Charles, E Cheu, L Chevalier, D K Cho, S Choi, S Chopra, T Christiansen, L Christofek, D Claes, A R Clark, B Clément, C Clément, Y Coadou, D J Colling, L Coney, B Connolly, M Cooke, W E Cooper, D Coppage, M Corcoran, J Coss, A Cothenet, M-C Cousinou, S Crépé-Renaudin, M Cristetiu, M A C Cummings, D Cutts, H da Motta, B Davies, G Davies, G A Davis, K De, P de Jong, S J de Jong, E De La Cruz-Burelo, C De Oliveira Martins, S Dean, K Del Signore, F Déliot, P A Delsart, M Demarteau, R Demina, P Demine, D Denisov, S P Denisov, S Desai, H T Diehl, M Diesburg, M Doidge, H Dong, S Doulas, L Duflot, S R Dugad, A Duperrin, J Dyer, A Dyshkant, M Eads, D Edmunds, T Edwards, J Ellison, J Elmsheuser, J T Eltzroth, V D Elvira, S Eno, P Ermolov, O V Eroshin, J Estrada, D Evans, H Evans, A Evdokimov, V N Evdokimov, J Fast, S N Fatakia, D Fein, L Feligioni, T Ferbel, F Fiedler, F Filthaut, W Fisher, H E Fisk, F Fleuret, M Fortner, H Fox, W Freeman, S Fu, S Fuess, C F Galea, E Gallas, E Galyaev, M Gao, C Garcia, A Garcia-Bellido, J Gardner, V Gavrilov, D Gelé, R Gelhaus, K Genser, C E Gerber, Y Gershtein, G Geurkov, G Ginther, K Goldmann, T Golling, B Gómez, K Gounder, A Goussiou, G Graham, P D Grannis, S Greder, J A Green, H Greenlee, Z D Greenwood, E M Gregores, S Grinstein, J-F Grivaz, L Groer, S Grünendahl, M W Grünewald, W Gu, S N Gurzhiev, G Gutierrez, P Gutierrez, A Haas, N J Hadley, H Haggerty, S Hagopian, I Hall, R E Hall, C Han, L Han, K Hanagaki, P Hanlet, K Harder, R Harrington, J M Hauptman, R Hauser, C Hays, J Hays, T Hebbeker, C Hebert, D Hedin, J M Heinmiller, A P Heinson, U Heintz, C Hensel, G Hesketh, M D Hildreth, R Hirosky, J D Hobbs, B Hoeneisen, M Hohlfeld, S J Hong, R Hooper, S Hou, Y Hu, J Huang, Y Huang, I Iashvili, R Illingworth, A S Ito, S Jabeen, M Jaffré, S Jain, V Jain, K Jakobs, A Jenkins, R Jesik, Y Jiang, K Johns, M Johnson, P Johnson, A Jonckheere, P Jonsson, H Jöstlein, A Juste, M M Kado, D Käfer, W Kahl, S Kahn, E Kajfasz, A M Kalinin, J Kalk, D Karmanov, J Kasper, D Kau, Z Ke, R Kehoe, S Kermiche, S Kesisoglou, A Khanov, A Kharchilava, Y M Kharzheev, K H Kim, B Klima, M Klute, J M Kohli, M Kopal, V M Korablev, J Kotcher, B Kothari, A V Kotwal, A Koubarovsky, A Kouchner, O Kouznetsov, A V Kozelov, J Kozminski, J Krane, M R Krishnaswamy, S Krzywdzinski, M Kubantsev, S Kuleshov, Y Kulik, S Kunori, A Kupco, T Kurca, V E Kuznetsov, S Lager, N Lahrichi, G Landsberg, J Lazoflores, A-C Le Bihan, P Lebrun, S W Lee, W M Lee, A Leflat, C Leggett, F Lehner, C Leonidopoulos, P Lewis, J Li, Q Z Li, X Li, J G R Lima, D Lincoln, S L Linn, J Linnemann, V V Lipaev, R Lipton, L Lobo, A Lobodenko, M Lokajicek, A Lounis, J Lu, H J Lubatti, A Lucotte, L Lueking, C Luo, M Lynker, A L Lyon, A K A Maciel, R J Madaras, P Mättig, A Magerkurth, A-M Magnan, M Maity, P K Mal, S Malik, V L Malyshev, V Manankov, H S Mao, Y Maravin, T Marshall, M Martens, M I Martin, S E K Mattingly, A A Mayorov, R McCarthy, R McCroskey, T McMahon, D Meder, H L Melanson, A Melnitchouk, X Meng, M Merkin, K W Merritt, A Meyer, C Miao, H Miettinen, D Mihalcea, C S Mishra, J Mitrevski, N Mokhov, J Molina, N K Mondal, H E Montgomery, R W Moore, M Mostafa, G S Muanza, M Mulders, Y D Mutaf, E Nagy, F Nang, M Narain, V S Narasimham, N A Naumann, H A Neal, J P Negret, S Nelson, P Neustroev, C Noeding, A Nomerotski, S F Novaes, T Nunnemann, E Nurse, V O'Dell, D C O'Neil, V Oguri, N Oliveira, B Olivier, N Oshima, G J Otero y Garzón, P Padley, K Papageorgiou, N Parashar, J Park, S K Park, J Parsons, R Partridge, N Parua, A Patwa, P M Perea, E Perez, O Peters, P Pétroff, M Petteni, L Phaf, R Piegaia, P L M Podesta-Lerma, V M Podstavkov, B G Pope, E Popkov, W L Prado da Silva, H B Prosper, S Protopopescu, M B Przybycien, J Qian, A Quadt, B Quinn, K J Rani, P A Rapidis, P N Ratoff, N W Reay, J-F Renardy, S Reucroft, J Rha, M Ridel, M Rijssenbeek, I Ripp-Baudot, F Rizatdinova, C Royon, P Rubinov, R Ruchti, B M Sabirov, G Sajot, A Sánchez-Hernández, M P Sanders, A Santoro, G Savage, L Sawyer, T Scanlon, R D Schamberger, H Schellman, P Schieferdecker, C Schmitt, A A Schukin, A Schwartzman, R Schwienhorst, S Sengupta, H Severini, E Shabalina, V Shary, W D Shephard, D Shpakov, R A Sidwell, V Simak, V Sirotenko, D Skow, P Skubic, P Slattery, R P Smith, K Smolek, G R Snow, J Snow, S Snyder, S Söldner-Rembold, X Song, Y Song, L Sonnenschein, A Sopczak, V Sorín, M Sosebee, K Soustruznik, M Souza, B Spurlock, N R Stanton, J Stark, J Steele, G Steinbrück, K Stevenson, V Stolin, A Stone, D A Stoyanova, J Strandberg, M A Strang, M Strauss, R Ströhmer, M Strovink, L Stutte, A Sznajder, M Talby, P Tamburello, W Taylor, P Telford, J Temple, S Tentindo-Repond, E Thomas, B Thooris, M Tomoto, T Toole, J Torborg, S Towers, T Trefzger, S Trincaz-Duvoid, T G Trippe, B Tuchming, C Tully, A S Turcot, P M Tuts, L Uvarov, S Uvarov, S Uzunyan, B Vachon, R Van Kooten, W M van Leeuwen, N Varelas, E W Varnes, I A Vasilyev, M Vaupel, P Verdier, L S Vertogradov, M Verzocchi, F Villeneuve-Seguier, J-R Vlimant, E Von Toerne, M Vreeswijk, T Vu Anh, H D Wahl, R Walker, N Wallace, Z-M Wang, J Warchol, M Warsinsky, G Watts, M Wayne, M Weber, H Weerts, M Wegner, N Wermes, A White, V White, D Whiteson, D Wicke, D A Wijngaarden, G W Wilson, S J Wimpenny, J Wittlin, T Wlodek, M Wobisch, J Womersley, D R Wood, Z Wu, T R Wyatt, Q Xu, N Xuan, R Yamada, T Yasuda, Y A Yatsunenko, Y Yen, K Yip, S W Youn, J Yu, A Yurkewicz, A Zabi, A Zatserklyaniy, M Zdrazil, C Zeitnitz, B Zhang, D Zhang, X Zhang, T Zhao, Z Zhao, H Zheng, B Zhou, Z Zhou, J Zhu, M Zielinski, D Zieminska, A Zieminski, R Zitoun, V Zutshi, E G Zverev, A Zylberstejn

Joint Institute for Nuclear Research, Dubna, Russia.
Physical Review Letters (impact factor: 7.37). 03/2005; 94(4):041801. pp.041801
Source: PubMed

ABSTRACT We report the results of a search for supersymmetry (SUSY) with gauge-mediated breaking in the missing transverse energy distribution of inclusive diphoton events using 263 pb(-1) of data collected by the D0 experiment at the Fermilab Tevatron Collider in 2002-2004. No excess is observed above the background expected from standard model processes, and lower limits on the masses of the lightest neutralino and chargino of about 108 and 195 GeV, respectively, are set at the 95% confidence level. These are the most stringent limits to date for models with gauge-mediated SUSY breaking with a short-lived neutralino as the next-to-lightest SUSY particle.

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Keywords

95% confidence level
 
chargino
 
D0 experiment
 
inclusive diphoton events
 
lightest neutralino
 
lower limits
 
missing transverse energy distribution
 
models
 
short-lived neutralino
 
standard model processes
 
stringent limits
 
supersymmetry