Article

Search for diphoton events with large missing transverse energy in 6.3 fb-1 of ppbar collisions at sqrt(s)=1.96 TeV

V M Abazov, B Abbott, M Abolins, B S Acharya, M Adams, T Adams, G D Alexeev, G Alkhazov, A Alton, G Alverson, G A Alves, L S Ancu, M Aoki, Y Arnoud, M Arov, A Askew, B Asman, O Atramentov, C Avila, J. Backusmayes, F Badaud, L Bagby, B Baldin, D V Bandurin, S Banerjee, E Barberis, P Baringer, J Barreto, J F Bartlett, U Bassler, S Beale, A Bean, M Begalli, M Begel, C Belanger-Champagne, L Bellantoni, J A Benitez, S B Beri, G Bernardi, R Bernhard, I Bertram, M Besançon, R Beuselinck, V A Bezzubov, P C Bhat, V Bhatnagar, G Blazey, S Blessing, K Bloom, A Boehnlein, D Boline, T A Bolton, E E Boos, G Borissov, T Bose, A Brandt, O. Brandt, R Brock, G Brooijmans, A Bross, D Brown, J Brown, X B Bu, D Buchholz, M Buehler, V Buescher, V Bunichev, S Burdin, T H Burnett, C P Buszello, B Calpas, S Calvet, E. Camacho-Pérez, M A Carrasco-Lizarraga, E Carrera, B C K Casey, H Castilla-Valdez, S Chakrabarti, D Chakraborty, K M Chan, A Chandra, G Chen, S. Chevalier-Théry, D K Cho, S W Cho, S Choi, B Choudhary, T Christoudias, S Cihangir, D Claes, J Clutter, M S Cooke, M Cooke, W E Cooper, M Corcoran, F Couderc, M-C Cousinou, A. Croc, D Cutts, M Cwiok, A Das, G Davies, K De, S J de Jong, E De La Cruz-Burelo, F Déliot, M Demarteau, R Demina, D Denisov, S P Denisov, S Desai, K Devaughan, H T Diehl, M Diesburg, A Dominguez, T Dorland, A Dubey, L V Dudko, D Duggan, A Duperrin, S Dutt, A Dyshkant, M Eads, D Edmunds, J Ellison, V D Elvira, Y. Enari, S Eno, H Evans, A Evdokimov, V N Evdokimov, G. Facini, A V Ferapontov, T Ferbel, F Fiedler, F. Filthaut, W Fisher, H E Fisk, M Fortner, H Fox, S Fuess, T Gadfort, A Garcia-Bellido, V Gavrilov, P Gay, W Geist, W Geng, D Gerbaudo, C E Gerber, Y Gershtein, G Ginther, G. Golovanov, A Goussiou, P D Grannis, S Greder, H Greenlee, Z D Greenwood, E M Gregores, G Grenier, Ph Gris, J F Grivaz, A Grohsjean, S Grünendahl, M W Grünewald, F Guo, J Guo, G Gutierrez, P Gutierrez, A Haas, S Hagopian, J Haley, L Han, K Harder, A Harel, J M Hauptman, J Hays, T Hebbeker, D Hedin, H. Hegab, A P Heinson, U Heintz, C Hensel, I. Heredia-De La Cruz, K Herner, G Hesketh, M D Hildreth, R Hirosky, T. Hoang, J D Hobbs, B Hoeneisen, M Hohlfeld, S Hossain, Z Hubacek, N Huske, V Hynek, I Iashvili, R Illingworth, A S Ito, S Jabeen, M Jaffré, S Jain, D. Jamin, R Jesik, K Johns, M Johnson, D Johnston, A Jonckheere, P Jonsson, J. Joshi, A Juste, K Kaadze, E Kajfasz, D Karmanov, P A Kasper, I Katsanos, R Kehoe, S Kermiche, N Khalatyan, A Khanov, A Kharchilava, Y N Kharzheev, D Khatidze, M H Kirby, J M Kohli, A V Kozelov, J Kraus, A Kumar, A Kupco, T Kurca, V.A. Kuzmin, J Kvita, S Lammers, G Landsberg, P Lebrun, H S Lee, S W Lee, W M Lee, J Lellouch, L Li, Q Z Li, S M Lietti, J K Lim, D Lincoln, J Linnemann, V V Lipaev, R Lipton, Y Liu, Z Liu, A Lobodenko, M Lokajicek, P Love, H J Lubatti, R Luna-Garcia, A L Lyon, A K A Maciel, D Mackin, R. Madar, R. Magana-Villalba, S Malik, V L Malyshev, Y Maravin, J. Martınez-Ortega, R McCarthy, C L McGivern, M M Meijer, A Melnitchouk, D. Menezes, P G Mercadante, M Merkin, A Meyer, J Meyer, N K Mondal, G S Muanza, M Mulhearn, E Nagy, M Naimuddin, M Narain, R. Nayyar, H A Neal, J P Negret, P Neustroev, H Nilsen, S F Novaes, T Nunnemann, G Obrant, D Onoprienko, J Orduna, N Osman, J Osta, G.J. Otero Y Garzon, M Owen, M Padilla, M Pangilinan, N Parashar, V. Parihar, S K Park, J Parsons, R Partridge, N Parua, A Patwa, B Penning, M Perfilov, K Peters, Y Peters, G Petrillo, P Pétroff, R Piegaia, J Piper, M-A Pleier, P L M Podesta-Lerma, V M Podstavkov, M E Pol, P Polozov, A V Popov, M. Prewitt, D Price, S Protopopescu, J Qian, A Quadt, B Quinn, M S Rangel, K Ranjan, P N Ratoff, I. Razumov, P Renkel, P Rich, M Rijssenbeek, I Ripp-Baudot, F Rizatdinova, M Rominsky, C Royon, P Rubinov, R Ruchti, G Safronov, G Sajot, A. Sanchez-Hernandez, M P Sanders, B. Sanghi, A.S. Santos, G Savage, L Sawyer, T Scanlon, R D Schamberger, Y Scheglov, H Schellman, T Schliephake, S Schlobohm, C Schwanenberger, R Schwienhorst, J Sekaric, H Severini, E Shabalina, V Shary, A A Shchukin, R K Shivpuri, V Simak, V Sirotenko, P Skubic, P Slattery, D Smirnov, K.J. Smith, G R Snow, J Snow, S Snyder, S Söldner-Rembold, L Sonnenschein, A Sopczak, M Sosebee, K Soustruznik, B Spurlock, J Stark, V Stolin, D A Stoyanova, E Strauss, M Strauss, D Strom, L Stutte, P Svoisky, M Takahashi, A Tanasijczuk, W Taylor, M Titov, V V Tokmenin, D Tsybychev, B Tuchming, C Tully, P M Tuts, L Uvarov, S Uvarov, S Uzunyan, R Van Kooten, W M van Leeuwen, N Varelas, E W Varnes, I A Vasilyev, P Verdier, L S Vertogradov, M Verzocchi, M. Vesterinen, D Vilanova, P Vint, P Vokac, H D Wahl, M H L S Wang, J Warchol, G Watts, M Wayne, M Weber, M Wetstein, A White, D Wicke, M R J Williams, G W Wilson, S J Wimpenny, M Wobisch, D R Wood, T R Wyatt, Y Xie, C Xu, S Yacoob, R Yamada, W-C Yang, T Yasuda, Y A Yatsunenko, Z Ye, H Yin, K Yip, H D Yoo, S W Youn, J Yu, S Zelitch, T Zhao, B Zhou, N Zhou, J Zhu, M Zielinski, D Zieminska, L Zivkovic

DOI:ARXIV: 1008.2133
Source: OAI

ABSTRACT We report a search for diphoton events with large missing transverse energy produced in ppbar collisions at sqrt(s)=1.96 TeV. The data were collected with the D0 detector at the Fermilab Tevatron Collider, and correspond to 6.3 fb-1 of integrated luminosity. The observed missing transverse energy distribution is well described by the standard model prediction, and 95% C.L. limits are derived on two realizations of theories beyond the standard model. In a gauge mediated supersymmetry breaking scenario, the breaking scale Lambda is excluded for Lambda < 124 TeV. In a universal extra dimension model including gravitational decays, the compactification radius R_c is excluded for R_c-1 < 477 GeV.

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Keywords

compactification radius R_c
 
D0 detector
 
diphoton events
 
Fermilab Tevatron Collider
 
gauge
 
large
 
luminosity
 
ppbar collisions
 
scenario
 
standard model prediction
 
transverse energy
 
transverse energy distribution
 
universal extra dimension model