Title: | Search for new physics with long-lived particles decaying to photons and missing energy in pp collisions at √s=7 TeV |
Authors: | Chatrchyan, S Khachatryan, V Sirunyan, AM Tumasyan, A Adam, W Aguilo, E Bergauer, T Dragicevic, M Ero, J Fabjan, C Friedl, M Akgun, B Fanelli, C Ron, E Nappi, A Dabrowski, A Rosin, M Salfeld-Nebgen, J Sudhakar, K Schmidt, R Schoerner-Sadenius, T Marcellini, S Azzolini, V Schmitt, M Lazo-Flores, J Mason, D Cherepanov, V Weber, H Florez, C Cabrillo, IJ Le Bihan, AC Tourtchanovitch, L Roland, B Toback, D Sen, N Smith, J Spiridonov, A Marone, M Stein, M Wright, D Walsh, R Nash, D Wissing, C Karchin, PE Behrenhoff, W Munoz Sanchez, FJ Stoye, M Ille, B Belyaev, A Van Hove, P De Roeck, A Cox, PT Baden, A Autermann, C Leonardo, N Calamba, A Blobel, V Malbouisson, H Pashenkov, A Lee, YJ Draeger, J Lawson, P Enderle, H Hanson, G Montanino, D Teodorescu, L Nguyen, D Wickramage, N Stoeckli, F Erfle, J Rougny, R Antunes, JR Dolen, J Pierini, M Gebbert, U Goerner, M Greene, S Carroll, R Hermanns, T Zarubin, A McBride, P Girgis, S Hoeing, RS Choi, M Di Guida, S Kaschube, K Fassi, F Bisello, D Zabel, J Malik, S Banerjee, S Kaussen, G Boutemeur, M Gurrola, A Rogerson, S Polic, D Erbacher, R Penzo, A Kyriakis, A Adams, T Kirschenmann, H Klanner, R Gokieli, R Ozpineci, A Lange, J Schael, S Mura, B Kim, JH Kumar, V Mishra, K Castaldi, R Hou, W-S Selvaggi, M Nowak, F Peiffer, T Dugad, S Gokbulut, G Tlisov, D Soares, MS Park, C Gardner, M Focardi, E Ofierzynski, RA Pietsch, N Dobson, M Snow, GR Marinov, A Johns, W Mercier, D Rathjens, D Sander, C Schettler, H Erdogan, Y Sammet, J Mehta, MZ Toropin, A Mrenna, S Starodumov, A Sellers, P Schleper, P Schlieckau, E Tenchini, R Johnston, C Meschi, E Ferguson, T Masetti, G Park, IC Schmidt, A Calvert, B Schroeder, M Furic, IK Beauceron, S Staykova, Z Schum, T Seidel, M Iiyama, Y Dremin, I Lynch, S De Benedetti, A Sanabria, JC Ranjan, K Mahmoud, MA Dupont-Sagorin, N Lomtadze, T Edelhoff, M D'Hondt, J Jang, DW Sola, V Arfaei, H Beaupere, N Park, S Stadie, H Steinbrueck, G Gurpinar, E Eno, SC Thomsen, J Pereira, AV Vodopiyanov, I Vanelderen, L Epshteyn, V Barth, C Berger, J Ryu, G Boeser, C Schizzi, A Mantovani, G Van Haevermaet, H Gomez, JA Olschewski, M Johnson, M Newman-Holmes, C Hos, I Kurt, P Chang, S Ryckbosch, D Bakhshiansohi, H Merkel, P Etesami, SM Gowdy, S Loveless, R Fahim, A Winstrom, L Van Onsem, GP Hashemi, M Lloret Iglesias, L Acosta, JG Wang, J Bondu, O Elgammal, S De La Cruz, B Basegmez, S Kangal, EE Hesari, H Jafari, A Bansal, S Heo, SG Song, S Khakzad, M Ling, TY Cerrada, M Uplegger, L Betchart, B Najafabadi, MM Erofeeva, M Mehdiabadi, SP Maguire, C Safarzadeh, B Gamsizkan, H Wittmer, B Boudoul, G Mueller, S Houtz, R Bylsma, B Raics, P Zeinali, M Guida, R Abbrescia, M Hartmann, F Ignatenko, M Barbone, L Trocino, D Hadley, NJ Malgeri, L Ata, M Kirn, M Villella, I Choi, S Hunt, A Pozdnyakov, A Chasserat, J Calabria, C Hrubec, J Orsini, L Gavrilov, V Geurts, FJM Willmott, C Perera, L Chhibra, SS Colaleo, A Creanza, D Melo, A De Filippis, N Hauth, T De Palma, M Karaman, T Fiore, L Liu, YF Dubinin, M Gorski, M Volpe, R Kellogg, RG Kossov, M Lannon, K Hansen, M Wood, D Iaydjiev, P Ryutin, R Pavlov, B Hildreth, M Gyun, D Iaselli, G Squires, M Lusito, L Singh, AP Saha, A Serin, M Maggi, G Godshalk, A Battilana, C Clerbaux, B Brigljevic, V Maggi, M Gonzalez Caballero, I Cho, Y Marangelli, B My, S Turner, M Ko, W Nuzzo, S De Mattia, M Lychkovskaya, N Pacifico, N Karapinar, G Vaandering, EW Pompili, A Choi, Y Dudko, L Morse, DM Finger, M Pedrini, D Tupputi, S Kroeger, R Heinrich, M Zhang, J Popov, V Harris, P Pugliese, G Shivpuri, RK Safdi, B Stieger, B Ronchese, P Chadwick, M Kopecky, A Radi, A Selvaggi, G Brun, H Silvestris, L Singh, G Kotov, K Karavakis, E De Lentdecker, G Benitez, JF Paulini, M Vidal, R Venditti, R Zito, G Grassi, M Van Mechelen, P Kim, DH Abbiendi, G Sharma, M Mozer, MU Hong, B Ribnik, J Vogel, H Safronov, G Lander, R Benvenuti, AC Anastassov, A Bonacorsi, D Teng, H Van Doninck, W Hartl, C Braibant-Giacomelli, S Choi, YK Vorobiev, I Brigliadori, L Topaksu, AK Sheldon, P Feld, L Whitmore, J Capiluppi, P Frisch, B Barberis, E Castro, A Troshin, S Farrell, C Prado Da Silva, WL Cavallo, FR Dero, V Chierici, R Jo, M Cuffiani, M Argiro, S Maity, M Onengut, G Kousouris, K Narain, M Dallavalle, GM Ralph, D Kubik, A Fabbri, F Fanfani, A Wu, W Held, H Miceli, T Harvey, J Vander Velde, C Field, RD Widl, E Kolberg, T Pearson, T Muentel, M Goh, J Tali, B Kim, MS Kurca, T Kwon, E Gary, JW Mohapatra, A Hajdu, C Mueller, T du Pree, T Branca, A Bourilkov, D De Oliveira Martins, C Longo, E Lee, B Lee, J Lee, S D'Agnolo, RT De Cosa, A Skhirtladze, N Seo, H Gay, APR Strobbe, N Francis, B Bernet, C Horvath, D Ledovskoy, A Yu, I Collard, C Mulders, M Piperov, S Delaere, C Niegel, M Mucia, N Bilinskas, MJ Chen, M Tauscher, L Topakli, H Assran, Y Solano, A Yohay, R Van Spilbeeck, A Grigelionis, I Janulis, M Juodagalvis, A Sharma, V Lethuillier, M Castilla-Valdez, H Dogangun, O De La Cruz-Burelo, E Cumalat, JP Tripathi, M Heredia-de La Cruz, I Skuja, A Lopez-Fernandez, R Thea, A Rohlf, J Bencze, G Goodell, J Vergili, LN Garcia, JMV Baumgartel, D Drell, BR Magana Villalba, R Thyssen, F Cheng, T Kilminster, B Temple, J Nuttens, C Musella, P Contardo, D Martinez-Ortega, J Hugon, J Marinelli, N Sanchez-Hernandez, A Lazic, D Goy Lopez, S Liu, H Villasenor-Cendejas, LM Vander Marcken, G Tonjes, MB Carrillo Moreno, S Nogima, H Meng, X Verzetti, M Vazquez Valencia, F Adler, V Rolandi, G Salazar Ibarguen, HA Casimiro Linares, E Cheung, HWK Das, S Morelos Pineda, A Wang, D Hoffmann, KH Luetic, J Vergili, M Reyes-Santos, MA Sierra, RV Planer, M Krofcheck, D Rovelli, C Gribushin, A Hammad, GH Mirabito, L Stolin, V Meschini, M Yang, F Hatakeyama, K Van Remortel, N Fabozzi, F Tytgat, M Akin, IV Bell, AJ Butler, PH Romero, A Bian, JG Noonan, D Ryan, MJ Meneghelli, M Tyurin, N Wittich, P De Gruttola, M Sauerland, P Doesburg, R Wulz, C-E Reucroft, S Silverwood, H Bodek, A Oguri, V Klyukhin, V Drouhin, F Ahmad, M Nuernberg, A Tonwar, SC Ruchti, R Ansari, MH Asghar, MI Rodriguez-Marrero, AY Edelmaier, CJ Iorio, AOM Lourenco, C Hoorani, HR Montanari, A Perries, S Rovere, M Nesvold, E Bean, A Twedt, E Aliev, T Lanev, A Di Giovanni, GP Khalid, S Verwilligen, P Khan, WA Gartner, J Hirosky, R Nam, SK Khurshid, T Qazi, S Sakulin, H Ford, WT Apyan, A Shah, MA Andreev, V Sordini, V Manolakos, I Navarria, FL Slaunwhite, J Shoaib, M Lista, L Grunewald, M Hadjiiska, R Cartiglia, N Brona, G Dobur, D Remington, R Luthra, A Bunkowski, K Cwiok, M Hegner, B Oberst, O Orimoto, T Dominik, W Cole, JE Bocci, A Kim, JY Cline, D Andreev, V O'Dell, V Doroba, K Ghete, VM Odorici, F Walsh, S Kalinowski, A Gaz, A Konecki, M Valls, N Meola, S Drozdetskiy, A Krolikowski, J Leonidov, A Gerbaudo, D Oehler, A Snook, B Lin, C Heyburn, B Correa Martins Junior, M Martin, MA Santanastasio, F Jarvis, C Schaefer, C Schilling, F-P Schwick, C Diamond, B Flugge, G Perrotta, A Lopez, EL Rizzi, A Checchia, P Bilin, B Mesyats, G Puigh, D Heister, A Ruiz-Jimeno, A Segoni, I Sekmen, S Sharma, A Paoletti, S Rios, AAO Albajar, C Kodolova, O Lopez, A Siegrist, P Nawrocki, K Silva, P Heracleous, N Schott, G Spagnolo, P Bansal, M Perieanu, A Primavera, F Simon, M De Boer, W Sphicas, P Kim, B De Jesus Damiao, D Dorigo, T Yazgan, E Spiga, D Fernandez, M Rodenburg, M Sharp, P Zhukov, V Plager, C Hindrichs, O Giunta, M Sprenger, D Torassa, E Tsirou, A Veres, GI Snigirev, A Vlimant, JR Potenza, A Simonis, HJ Ganguly, S Woehri, HK Lokhtin, I Worm, SD Bauer, G Konigsberg, J Zeuner, WD Calvo, E Don, CKK Bertl, W Sparrow, A Kunori, S Depasse, P Palla, F Jussen, R Rakness, G Dosselli, U Lellouch, J Richman, J Milenovic, P Bendavid, J Deiters, K Erdmann, W Vuosalo, C Kharchilava, A Salvati, E Lamichhane, P Martins, T Gabathuler, K Ott, J Bilmis, S Horisberger, R Lujan, P Daubie, E Ingram, Q Klima, B Neumeister, N Scheurer, A Hagopian, V Kaestli, HC Markina, A Petkov, P Sakharov, A Koenig, S Cousins, R Velasco, M Liu, H Kotlinski, D Fernandez Bedoya, C Rossi, AM Surat, UE Langenegger, U Brinkerhoff, A Meier, F Sanders, DA Williams, G Renker, D Anderson, M Merola, M Morovic, S Schlein, P Honc, S Rohe, T Sulak, L Korytov, A Pol, ME Sibille, J Yalvac, M Baeni, L Bortignon, P Stober, FM Klein, K Evstyukhin, S Rovelli, T Spalding, WJ Wayne, M Chlebana, F Gasparini, F Obraztsov, S Buchmann, MA Traczyk, P Casal, B Chanon, N Giffels, M Roland, G Sguazzoni, G Yumiceva, F Damgov, J Mirman, N Romanowska-Rybinska, K Kropivnitskaya, A Franzoni, G Winer, BL Mohanty, AK Deisher, A Troendle, D Smith, JG Dissertori, G Tuo, S Dittmar, M Raidal, M Valuev, V Yildirim, E Dierlamm, A Donega, M Gozzelino, A Belknap, D Adams, MR Souza, MHG Duenser, M Siroli, G Eugster, J Merz, J Busza, W Perfilov, M Fouz, MC Freudenreich, K Szleper, M Hobson, PR Ulrich, R Zeyrek, M Grab, C Lelas, D Sengupta, S Borrello, L Weber, M Yu, SS Adam, N Hits, D Rossin, R Chung, YS Lecomte, P Lustermann, W Pegna, DL Ostapchuk, A Lu, Y Lecoq, P Marini, AC del Arbol, PMR Gulmez, E Butz, E Stenson, K 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Saini, LK Evangelou, I David, A Flacher, H Redaelli, N Dorney, B Chatterjee, A Frazier, R Marlow, D Goldstein, J Hinzmann, A Vinogradov, A Urscheler, C Grimes, M Zhang, L Soares Jorge, L Patterson, JR Eggert, N Hidas, P Zakaria, M Mavrommatis, C Arneodo, M Chetluru, V Patras, V Adzic, P Heath, GP Heath, HF Bhattacharya, S Covarelli, R Kreczko, L Georgiou, G Zotto, P Son, DC Metson, S Prokofyev, O Newbold, DM Nirunpong, K Dasu, S Medvedeva, T Gibbons, LK Poll, A Ceballos, GG Dietz-Laursonn, E Senkin, S Ryd, A Smith, K Kim, TJ Quast, G Calderon, A Ntomari, E Everett, A Gaultney, V Azhgirey, I Glege, F Grachov, O Stickland, D Gray, L Smith, VJ Kiesenhofer, W Williams, T Sznajder, A Alverson, G Wang, J Velicanu, D Duchardt, D Basso, L Bell, KW Lazzizzera, I Dinardo, ME Belyaev, A Chiorboli, M Sultanov, G Heltsley, B Scodellaro, L Brew, C Kumar, A Kovac, M Simonetto, F Silvers, D Brown, RM Cockerill, DJA Goncharov, M Costa, S Moisenz, P Erdmann, M Coughlan, JA Matchev, K Forthomme, L Elvira, VD Harder, K Antonelli, L Faccioli, P Paramesvaran, S Harper, S Ricci-tam, F Sever, R Militaru, O Jackson, J Blyweert, S Anjos, TS Kennedy, BW Fischer, R Sarycheva, L Kamel, AE Hewamanage, S Biasini, M Paolucci, P Yun, JC Olaiya, E Linacre, J Mooney, M Petyt, D Radburn-Smith, BC Sturdy, J Shepherd-Themistocleous, CH Tomalin, IR Stuart, D Fiori, F Zumerle, G Gouskos, L Ozturk, S Lei, YJ Ferreira Parracho, PG Jessop, C Custodio, A Avdeeva, E Bayshev, I Womersley, WJ Pieta, H Bainbridge, R Lebolo, LM Ball, G Potenza, R Beuselinck, R Santocchia, A Hoermann, N Ivanov, Y Wolf, M Gele, D Chang, YH Stephans, GSF Wallny, R Olsen, J Gonzalez, JS Tricomi, A Bernardes, CA Kim, GN Buchmuller, O Gabusi, M Hahn, KA Kress, M Colling, D Viret, S Cripps, N Behr, J Linn, S El Mamouni, H Sumowidagdo, S de Fatis, TT Cutajar, M Bitioukov, S de Barbaro, P Gueth, A Redjimi, R Dauncey, P Davies, G Gallinaro, M Della Negra, M Marionneau, M Mertzimekis, TJ Grogg, KS Ferguson, W Anghel, IM Piroue, P 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D Masetti, L Vartak, A Berry, D Bucinskaite, I Wasserbaech, S Wuerthwein, F Fay, J Klingebiel, D Vutova, M Nahn, S Yagil, A Klukas, J Vesztergombi, G Yoo, J Callner, J Sung, K Costantini, S Perez, E Khukhunaishvili, A Margoni, M Lagana, C Azzurri, P Zou, W Alagoz, E Barge, D Everaerts, P Obertino, MM Tatarinov, A Jiang, CH Kreuzer, P Alves, GA Bellan, R Stoynev, S Campagnari, C D'Alfonso, M Garcia, G Hu, Z Milosevic, J Kraetschmer, I Beni, N Danielson, T Flowers, K Acosta, D Korablev, A Bochenek, J Geffert, P Golutvin, I Yoo, HD Weinberg, M Paus, C Magass, C Incandela, J Beernaert, K Dimitrov, A Innocente, V Volkov, A Duric, S Justus, C Cavanaugh, R Kalavase, P Lanaro, A Kamenev, A Chang, P Czellar, S Koay, SA Saka, H Menichelli, M Kovalskyi, D Bloom, K Vila, I Krutelyov, V Hollar, J Mejias, BM Baarmand, MM Lowette, S Fisher, M Long, OR Lazaridis, C Jones, M Mccoll, N Thomas, L Bagliesi, G Pavlunin, V Rebassoo, F Molnar, J Virdee, T Merschmeyer, M Barnes, VE Colino, N Savrin, V 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Foa, L Marfin, I Marienfeld, M Ferrando, A Kravchenko, I Ershov, A Chertok, M Melzer-Pellmann, I-A Meyer, AB Karancsi, J Cremaldi, LM Mehta, P Mnich, J Gronberg, J Mohanty, GB Paganoni, M Mundim, L Mussgiller, A Dominguez Vazquez, D D'Enterria, D Bortoletto, D Butt, J Meijers, F Naumann-Emme, S Olzem, J Matveev, V Lange, D Cox, B Conway, J Perrey, H Pastrone, N Leonidopoulos, C Ochesanu, S Pozzobon, N Petrukhin, A Folgueras, S Delannoy, AG Parida, B Pitzl, D Nishu, N Bergholz, M Ceard, L Kim, TY Raspereza, A Maruyama, S Cipriano, PMR Riedl, C Conway, R Walzel, G Eskut, E Gobbo, B Iashvili, I Dahmes, B CMS Collaboration |
Keywords: | Hadron-Hadron Scattering |
Issue Date: | 2012 |
Publisher: | Springer-Verlag |
Citation: | Journal of High Energy Physics (11): 172, Nov 2012 |
Abstract: | A search is performed for long-lived neutral particles decaying into a photon and invisible particles. An example of such a signature is the decay of the lightest neutralino with nonzero lifetime into a gravitino and a photon in gauge-mediated supersymmetry, with the neutralino as the next-to-lightest supersymmetric particle and the gravitino as the lightest. The search uses events containing photons, missing transverse energy, and jets. The impact parameter of the photon relative to the beam-beam collision point can be reconstructed using converted photons. The method is sensitive to lifetimes of the order of 0.1 to 1 ns. The data sample corresponds to an integrated luminosity of 2.23 fb−1 in pp collisions at √s=7 TeV, recorded in the first part of 2011 by the CMS experiment at the LHC. Cross-section limits are presented on pair production for such particles, each of which decays into a photon and invisible particles. The observed 95% confidence level limitsvary between 0.11 and 0.21 pb, depending on the neutral particle lifetime. |
Description: | This is the pre-print version of the Article. The official published version can be accessed from the link below - Copyright @ 2012 Springer-Verlag |
URI: | http://link.springer.com/article/10.1007%2FJHEP11%282012%29172 http://bura.brunel.ac.uk/handle/2438/7310 |
DOI: | http://dx.doi.org/10.1007/JHEP11(2012)172 |
ISSN: | 1029-8479 |
Appears in Collections: | Electronic and Electrical Engineering Dept of Electronic and Electrical Engineering Research Papers
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