Title: | Search for long-lived particles in events with photons and missing energy in proton-proton collisions at √s=7 TeV |
Authors: | Chatrchyan, S Khachatryan, V Sirunyan, AM Tumasyan, A Adam, W Aguilo, E Bergauer, T Dragicevic, M Eroe, J Fabjan, C Friedl, M Marinelli, N Branca, A Carlin, R Checchia, P Dorigo, T Gasparini, E Vander Marcken, G Gonella, E Gozzelino, A Kanishchev, K Markina, A Morse, DM Mannelli, M Lacaprara, S Lazzizzera, I Margoni, M Meneguzzo, AT Pazzini, J Pozzobon, N Ronchese, P Vanlaer, P Simonetto, F Pearson, T Torassa, E Masetti, L Tosi, M Vanini, S Zotto, P Zucchetta, A Zumerle, G Gabusi, M Ratti, SR Riccardi, C Planer, M Wang, J Torre, R Meijers, E Vitulo, P Biasini, M Bilei, GM Fano, L Lariccia, P Mantovani, G Menichelli, M Ruchti, R Nappi, A Romeo, F Adler, V Mersi, S Saha, A Santocchia, A Spiezia, A Taroni, S Azzurri, P Bagliesi, G Slaunwhite, J Bernardini, J Boccali, T Broccolo, G Castaldi, R Meschi, E Beernaert, K D'Agnolo, RT Dell'Orso, R Fiori, F Foa, L Valls, N Giassi, A Ligabue, F Lomtadze, T Martini, L Messineo, A Moser, R Palla, F Cimmino, A Rizzi, A Serban, AT Plestina, R Spagnolo, R Squillacioti, P Tenchini, R Tonelli, G Venturi, A Verdini, PG Mozer, MU Barone, L Cavallari, E Costantini, S Wayne, M Del Re, D Diemoz, M Fanelli, C Grassi, M Longo, E Meridiani, P Micheli, F Mulders, M Nourbakhsh, S Organtini, G Wolf, M Paramatti, R Garcia, G Rahatlou, S Sigamani, M Soffi, L Amapane, N Arcidiacono, R Argiro, S Musella, P Arneodo, M Piedra Gomez, J Gonzalez Sanchez, J Biino, C Cartiglia, N Costa, M Grunewald, M Demaria, N Mariotti, C Maselli, S Migliore, E Monaco, V Daubie, E Bylsma, B Musich, M Obertino, MM Pastrone, N Pelliccioni, M Potenza, A Klein, B Romero, A Ruspa, M Sacchi, R Solano, A Durkin, LS Obraztsov, S Nesvold, E Staiano, A Pereira, AV Belforte, S Candelise, V Casarsa, M Cossutti, F Lellouch, J Della Ricca, G Hill, C Gobbo, B Marone, M Orimoto, T Montanino, D Penzo, A Schizzi, A Heo, SG Kim, TY Nam, SK Chang, S Hughes, R Marinov, A Kim, DH Kim, GN Orsini, L Kong, DJ Park, H Ro, SR Son, DC Son, T Kim, JY Kotov, K Kim, ZJ Song, S Mccartin, J Choi, S Cortezon, EP Gyun, D Hong, B Jo, M Kim, TJ Lee, K Ling, TY Moon, DH Park, SK Choi, M Kim, JH Rios, AAO Perez, E Park, C Park, IC Park, S Ryu, G Puigh, D Cho, Y Choi, Y Choi, YK Goh, J Kim, MS Kwon, E Perrozzi, L Ryckbosch, D Lee, B Lee, J Rodenburg, M Lee, S Seo, H Yu, I Bilinskas, MJ Grigelionis, I Janulis, M Juodagalvis, A Petrilli, A Castilla-Valdez, H Strobbe, N Polic, D De la Cruz-Burelo, E Heredia-de La Cruz, I Lopez-Fernandez, R Magana Villalba, R Martinez-Ortega, J Sanchez-Hernandez, A Villasenor-Cendejas, LM Carrillo Moreno, S Pfeiffer, A Vazquez Valencia, F Yilmaz, Y Vuosalo, C Salazar Ibarguen, HA Thyssen, F Casimiro Linares, E Morelos Pineda, A Reyes-Santos, MA Krofcheck, D Bell, AJ Butler, PH Doesburg, R Pierini, M Delaere, C Reucroft, S Silverwood, H Ahmad, M Tytgat, M Ansari, MH Asghar, MI Hoorani, HR Khalid, S Khan, WA Khurshid, T Nuttens, C Pimiae, M Qazi, S Shah, MA Shoaib, M Bialkowska, H Verwilligen, P Boimska, B Frueboes, T Gokieli, R Gorski, M Williams, G Kazana, M Perfilov, M Hammad, GH Nawrocki, K Romanowska-Rybinska, K Szleper, M Wrochna, G Zalewski, P Walsh, S Brona, G Winer, BL Bunkowski, K Cwiok, M Dominik, W Piparo, D Doroba, K Kalinowski, A Konecki, M Krolikowski, J Almeida, N Bargassa, P Adam, N Yazgan, E David, A Faccioli, P Ferreira Parracho, PG Polese, G Gallinaro, M Seixas, J Varela, J Vischia, P Belotelov, I Berry, E Bunin, P Golutvin, I Zaganidis, N Gorbunov, I Kamenev, A Quertenmont, L Karjavin, V Kozlov, G Laney, A Malakhov, A Elmer, P Moisenz, P Palichik, V Perelygin, V Savina, M Basegmez, S Shmatov, S Racz, A Smirnov, V Volodko, A Zarubin, A Gerbaudo, D Evstyukhin, S Golovtsov, V Ivanov, Y Kim, V Levchenko, R Murzin, V Bruno, G Reece, W Oreshkin, V Smirnov, I Halyo, V Sulimov, V Uvarov, L Vavilov, S Vorobyev, A Vorobyev, A Andreev, Y Dermenev, A Gninenko, S Antunes, JR Castello, R Yoon, AS Hebda, P Golubev, N Kirsanov, M Krasnikov, N Matveev, V Pashenkov, A Tlisov, D Toropin, A Epshteyn, V Erofeeva, M Rolandi, G Hegeman, J Gavrilov, V Ceard, L Kossov, M Lychkovskaya, N Popov, V Safronov, G Semenov, S Stolin, V Vlasov, E Zhokin, A Puljak, I Rovelli, C Belyaev, A Boos, E Rovere, M du Pree, T Sakulin, H Alves, GA Santanastasio, E Schaefer, C Schwick, C Graziano, A Segoni, I Sekmen, S Sharma, A Siegrist, P Silva, P Petrushanko, S Simon, M Sphicas, P Ghete, VM Correa Martins Junior, M Hunt, A Spiga, D Tsirou, A Veres, GI Vlimant, JR Woehri, HK Worm, SD Popov, A Zeuner, WD Bertl, W Deiters, K Jindal, P Erdmann, W De Jesus Damiao, D Gabathuler, K Horisberger, R Ingram, Q Kaestli, HC Koenig, S Sarycheva, L Kotlinski, D Langenegger, U Pegna, DL Meier, F Renker, D Rohe, T Martins, T Sibille, J Baeni, L Bortignon, P Buchmann, MA Savrin, V Casal, B Lujan, P Chanon, N Deisher, A Dissertori, G Dittmar, M Donega, M Pol, ME Duenser, M Eugster, J Freudenreich, K Snigirev, A Marlow, D Grab, C Hits, D Lecomte, P Lustermann, W Marini, AC del Arbol, PMR Mohr, N Souza, MHG Moortgat, F Naegeli, C Medvedeva, T Andreev, V Net, P Nessi-Tedaldi, F Pandolfi, E Pape, L Pauss, F Peruzzi, M Ronga, FJ Rossini, M Aida Junior, WL Zanetti, M Mooney, M Sala, L Azarkin, M Sanchez, AK Starodumov, A Stieger, B Takahashi, M Tauscher, L Thea, A Theofilatos, K Treille, D Olsen, J Urscheler, C Carvalho, W Dremin, I Wallny, R Weber, HA Wehrli, L Amsler, C Chiochia, V De Visscher, S Favaro, C Piroue, P Rikova, MI Mejias, BM Otiougova, P Kirakosyan, M Custodio, A Robmann, P Snoek, H Tupputi, S Verzetti, M Chang, YH Quan, X Chen, KH Kuo, CM Li, SW Lin, W Leonidov, A Liu, ZK Da Costa, EM Lu, YJ Mekterovic, D Singh, AP Jorda, C Volpe, R Yu, SS Bartalini, P Chang, P Chang, YH Favart, D Chang, YW Chao, Y De Oliveira Martins, C Chen, KF Kraetschmer, I Dietz, C Grundler, U Hou, W-S Hsiung, Y Kao, KY Lei, YJ Mesyats, G Lu, R-S Majumder, D Petrakou, E Brigljevic, V Hammer, J Fonseca De Souza, S Shi, X Shiu, JG Tzeng, YM Wan, X Wang, M Rusakov, SV Asavapibhop, B Srimanobhas, N Raval, A Adiguzel, A Bakirci, MN Cerci, S Matos Figueiredo, D Dozen, C Dumanoglu, I Eskut, E Girgis, S Vinogradov, A Gokbulut, G Safdi, B Gurpinar, E Hos, I Kangal, EE Karaman, T Karapinar, G Mundim, L Topaksu, AK Onengut, G Ozdemir, K Azhgirey, I Saka, H Ozturk, S Polatoz, A Sogut, K Cerci, DS Tali, B Topakli, H Vergili, M Nogima, H Akin, IV Aliev, T Cooper, SI Stickland, D Bayshev, I Bilin, B Bilmis, S Deniz, M Gamsizkan, H Guler, AM Ocalan, K Ozpineci, A Serin, M Oguri, V Tully, C Sever, R Bitioukov, S Surat, UE Yalvac, M Yildirim, E Zeyrek, M Guilmez, E Isildak, B Kaya, M Kaya, O Werner, JS Ozkorucuklu, S Prado Da Silva, WL Grishin, V Sonmez, N Cankocak, K Levchuk, L Bostock, F Brooke, JJ Clement, E Cussans, D Zuranski, A Flacher, H Frazier, R Goldstein, J Kachanov, V Santoro, A Grimes, M Heath, GP Heath, HF Kreczko, L Metson, S Brownson, E Newbold, DM Nirunpong, K Poll, A Senkin, S Konstantinov, D Smith, VJ Soares Jorge, L Williams, T Basso, L Bell, KW Lopez Virto, A Belyaev, A Brew, C Brown, RM Cockerill, DJA Coughlan, JA Krychkine, V Harder, K Harper, S Sznajder, A Jackson, J Lopez, A Kennedy, BW Olaiya, E Petyt, D Radburn-Smith, BC Shepherd-Themistocleous, CH Tomalin, IR Forthomme, L Womersley, WJ Bainbridge, R Ball, G Mendez, H Anjos, TS Beuselinck, R Buchmuller, O Colling, D Cripps, N Cutajar, M Dauncey, P Petrov, V Davies, G Della Negra, M Duric, S Ferguson, W Fulcher, J Hoermann, N Bernardes, CA Futyan, D Gilbert, A Bryer, AG Hall, G Ryutin, R Hatherell, Z Vargas, JER Hays, J Iles, G Jarvis, M Karapostoli, G Lyons, L Dias, FA Magnan, A-M Marrouche, J Mathias, B Sobol, A Dahmes, B Alagoz, E Nandi, R Nash, J Nikitenko, A Papageorgiou, A Pela, J Pesaresi, M Petridis, K Fernandez Perez Tomei, TR Pioppi, M Raymond, DM Barnes, VE Tourtchanovitch, L Rogerson, S Rose, A Ryan, MJ Seez, C Sharp, P Sparrow, A Stoye, M Tapper, A Gregores, EM Benedetti, D Acosta, MV Troshin, S Virdee, T Wakefield, S Wardle, N Whyntie, T Chadwick, M Cole, JE Hobson, PR Khan, A Bolla, G Kyberd, P Lagana, C Tyurin, N Leggat, D Leslie, D Martin, W Reid, ID Symonds, P Teodorescu, L Turner, M Bortoletto, D Hatakeyama, K Liu, H Scarborough, T Uzunian, A Marinho, F Charaf, O Henderson, C Rumerio, P Avetisyan, A Bose, T De Mattia, M Fantasia, C Heister, A St John, J Lawson, P Volkov, A Lazic, D Mercadante, PG Rohlf, J Sperka, D Sulak, L Marco, J Alimena, J Bhattacharya, S Cutts, D Demiragli, Z Ferapontov, A Adzic, P Garabedian, A Heintz, U Novaes, SF Jabeen, S Everett, A Kukartsev, G Laird, E Landsberg, G Luk, M Narain, M Nguyen, D Djordjevic, M Segala, M Sinthuprasith, T Speer, T Hu, Z Padula, SS Tsang, KV Breedon, R Breto, G Sanchez, MCDLB Chauhan, S Chertok, M Giammanco, A Conway, J Conway, R Jones, M Cox, PT Dolen, J Genchev, V Erbacher, R Gardner, M Houtz, R Ko, W Kopecky, A Krpic, D Lander, R De Benedetti, A Kadija, K Mall, O Miceli, T Pellett, D Ricci-Tam, E Hrubec, J Iaydjiev, P Rutherfor, B Searle, M Smith, J Milosevic, J Koybasi, O Squires, M Tripathi, M Sierra, RV Andreev, V Cline, D Cousins, R Duris, J 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Kovalskyi, D Franzoni, G Shipsey, I Krutelyov, V Lowette, S Dimitrov, A Mccoll, N Pavlunin, V Rebassoo, F Ribnik, J Richman, J Hollar, J Rossin, R Silvers, D Stuart, D To, W West, C Apresyan, A Hadjiiska, R Bornheim, A Chen, Y Di Marco, E Duarte, J De La Cruz, B Luetic, J Gataullin, M Ma, Y Mott, A Newman, HB Rogan, C Spiropulu, M Jeitler, M Kozhuharov, V Timciuc, V Veverka, J Svyatkovskiy, A Delgado Peris, A Wilkinson, R Xie, S Yang, Y Zhu, RY Akgun, B Azzolini, V Calamba, A Carroll, R Litov, L Marono, MV Ferguson, T Dominguez Vazquez, D Iiyama, Y Jang, DW Liu, YF Paulini, M Vogel, H Vorobiev, I Cumalat, JP Drell, BR Yoo, HD Ford, WT Pavlov, B Fernandez Bedoya, C Gaz, A Lopez, EL Smith, JG Stenson, K Ulmer, KA Wagner, SR Alexander, J Zablocki, J Chatterjee, A Eggert, N Gibbons, LK Fernandez Ramos, JP Petkov, P Heltsley, B Khukhunaishvili, A Kreis, B Mirman, N Kaufman, GN Zheng, Y Patterson, JR Ryd, A Salvati, E Sun, W Ferrando, A Teo, WD Bian, JG Thom, J Thompson, J Tucker, J Martinez 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Matteo, L Fiorendi, S Maeki, T Gennai, S Ghezzi, A Malvezzi, S Mohammadi, A Luo, W Manzoni, RA Martelli, A Massironi, A Menasce, D Moroni, L Paganoni, M Malberti, M Pedrini, D Ragazzi, S Redaelli, N Lynch, S Sala, S Reis, T de Fatis, TT Buontempo, S Montoya, CAC Cavallo, N De Cosa, A Caebergs, T Dogangun, O Fabozzi, E Gomez, G Iorio, AOM Lista, L Meola, S Thomas, L Merola, M Paolucci, P Azzi, P Bacchetta, N Malgeri, L Bisello, D |
Keywords: | CMS;LHC;SUSY;Exotica;GMSB;Long-lived;Photons;Displaced |
Issue Date: | 2013 |
Publisher: | Elsevier |
Citation: | Physics Letters B, 722(4-5), 273 - 294, 2013 |
Abstract: | Results are presented from a search for long-lived neutralinos decaying into a photon and an invisible particle, a signature associated with gauge-mediated supersymmetry breaking in supersymmetric models. The analysis is based on a 4.9 fb^−1 sample of proton–proton collisions at √s=7TeV, collected with the CMS detector at the LHC. The missing transverse energy and the time of arrival of the photon at the electromagnetic calorimeter are used to search for an excess of events over the expected background. No significant excess is observed, and lower limits at the 95% confidence level are obtained on the mass of the lightest neutralino, m > 220 GeV (for cτ < 500 mm), as well as on the proper decay length of the lightest neutralino, cτ > 6000 mm (for m < 150 GeV). |
Description: | This article is the pre-print version of the final published paper that is available from the link below. |
URI: | http://www.sciencedirect.com/science/article/pii/S0370269313003067 http://bura.brunel.ac.uk/handle/2438/7823 |
DOI: | http://dx.doi.org/10.1016/j.physletb.2013.04.027 |
ISSN: | 0370-2693 |
Appears in Collections: | Electronic and Electrical Engineering Dept of Electronic and Electrical Engineering Research Papers
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