Title: | Search for long-lived particles that decay into final states containing two electrons or two muons in proton-proton collisions at s =8TeV |
Authors: | Khachatryan, V Sirunyan, AM Tumasyan, A Adam, W Bergauer, T Dragicevic, M Erö, J Friedl, M Frühwirth, R Ghete, VM Hartl, C Mendez, H Simonetto, F Torassa, E Tosi, M Ventura, S Zotto, P Zucchetta, A Gabusi, M Ratti, SP Re, V Levchenko, P Ramirez Vargas, JE Dordevic, M Riccardi, C Wang, J Salvini, P Vitulo, P Biasini, M Bilei, GM Ciangottini, D Fanò, L Lariccia, P Barnes, VE Mantovani, G Dorney, B Menichelli, M Saha, A Zenoni, F Santocchia, A Spiezia, A Androsov, K Azzurri, P Bagliesi, G Benedetti, D Bernardini, J Boccali, T Dupont-Sagorin, N Broccolo, G Castaldi, R Ciocci, MA Adler, V Dell'Orso, R Donato, S Fiori, F Bortoletto, D Foà, L Giassi, A Grippo, MT Elliott-Peisert, A Ligabue, F Lomtadze, T Martini, L Messineo, A Beernaert, K Moon, CS De Mattia, M Palla, F Rizzi, A Savoy-Navarro, A Serban, AT Eugster, J Spagnolo, P Squillacioti, P Tenchini, R Tonelli, G Venturi, A Gutay, L Benucci, L Verdini, PG Vernieri, C Barone, L Cavallari, F Franzoni, G D'Imperio, G Del Re, D Diemoz, M Jorda, C Cabrera, A Longo, E Margaroli, F Cimmino, A Meridiani, P Micheli, F Nourbakhsh, S Funk, W Organtini, G Paramatti, R Rahatlou, S Hu, Z Rovelli, C Santanastasio, F Soffi, L Traczyk, P Costantini, S Amapane, N Arcidiacono, R Gigi, D Argiro, S Arneodo, M Jha, MK Bellan, R Biino, C Cartiglia, N Casasso, S Costa, M Degano, A Crucy, S Demaria, N Gill, K Finco, L Chamizo Llatas, M Fouz, MC Mariotti, C Maselli, S Migliore, E Monaco, V Musich, M Obertino, MM Ortona, G Pacher, L Dildick, S Nuttens, C Jones, M Pastrone, N Pelliccioni, M Pinna Angioni, GL Potenza, A Romero, A Ruspa, M Sacchi, R Solano, A Staiano, A Tamponi, U Jung, K Murzin, V Giordano, D Fagot, A Belforte, S Candelise, V Casarsa, M Cossutti, F Della Ricca, G Gobbo, B La Licata, C Kress, M Marone, M Schizzi, A Girone, M Umer, T Garcia, G Zanetti, A Chang, S Kropivnitskaya, A Nam, SK Kim, DH Leonardo, N Kim, GN Kim, MS Kong, DJ Glege, F Lee, S Oh, YD McCartin, J Park, H Sakharov, A Son, DC Lopes Pegna, D Kim, TJ Kim, JY Song, S Choi, S Guida, R Gyun, D Hong, B Jo, M Ocampo Rios, AA Kim, H Maroussov, V Kim, Y Lee, B Lee, KS Park, SK Roh, Y Gundacker, S Yoo, HD Choi, M Kim, JH Park, IC Miller, DH Ryckbosch, D Ryu, G Ryu, MS Choi, Y Choi, YK Goh, J Guthoff, M Kim, D Kwon, E Lee, J Neumeister, N Yu, I Juodagalvis, A Salva Diblen, S Komaragiri, JR Md Ali, MAB Casimiro Linares, E Castilla-Valdez, H Hammer, J De La Cruz-Burelo, E Heredia-De La Cruz, I Chaparro Sierra, LF Hernandez-Almada, A Lopez-Fernandez, R Sanchez-Hernandez, A Carrillo Moreno, S Sigamani, M Vazquez Valencia, F Pedraza, I Salazar Ibarguen, HA Hansen, M Morelos Pineda, A Nash, D Radburn-Smith, BC Krofcheck, D Butler, PH Reucroft, S Ahmad, A Ahmad, M Hassan, Q Strobbe, N Hoorani, HR Khan, WA Harris, P Basegmez, S Khurshid, T Shoaib, M Bialkowska, H Bluj, M Boimska, B Frueboes, T Górski, M Kazana, M Thyssen, F Nawrocki, K Favart, D Hegeman, J Romanowska-Rybinska, K Szleper, M Zalewski, P Brona, G Bunkowski, K Cwiok, M Dominik, W Doroba, K Kalinowski, A Shi, X Tytgat, M Oreshkin, V Pagano, D Konecki, M Krolikowski, J Misiura, M Olszewski, M Wolszczak, W Bargassa, P Beirão Da Cruz E Silva, C Shipsey, I Faccioli, P Ferreira Parracho, PG Gallinaro, M Innocente, V Yazgan, E Lloret Iglesias, L Nguyen, F Rodrigues Antunes, J Seixas, J Varela, J Silvers, D Vischia, P Golutvin, I Gorbunov, I Kamenev, A Janot, P Karjavin, V Zaganidis, N Konoplyanikov, V Kozlov, G Lanev, A Svyatkovskiy, A Malakhov, A Matveev, V Moisenz, P Palichik, V Perelygin, V Kousouris, K Savina, M Shmatov, S Krajczar, K Lecoq, P Wang, F Lourenço, C Magini, N Malgeri, L Mannelli, M Beluffi, C Marrouche, J Perrini, L Masetti, L Meijers, F Mersi, S Xie, W Meschi, E Moortgat, F Morovic, S Mulders, M Orsini, L Smirnov, I Pape, L Perez, E Hrubec, J Pin, A Xu, L Perrozzi, L Petrilli, A Petrucciani, G Pfeiffer, A Pimiä, M Piparo, D Sulimov, V Plagge, M Racz, A Rolandi, G Orimoto, T Zablocki, J Rovere, M Piotrzkowski, K Sakulin, H Schäfer, C Schwick, C Sharma, A Siegrist, P Uvarov, L Silva, P Simon, M Zheng, Y Sphicas, P Spiga, D Steggemann, J Popov, A Stieger, B Stoye, M Takahashi, Y Treille, D Vavilov, S Tsirou, A Florez, C Veres, GI Wardle, N Wöhri, HK Wollny, H Zeuner, WD Quertenmont, L Bertl, W Deiters, K Erdmann, W Vorobyev, A Garcia-Abia, P Horisberger, R Ingram, Q Kaestli, HC Kotlinski, D Langenegger, U Renker, D Rohe, T Selvaggi, M Bachmair, F Bäni, L Parashar, N Vorobyev, A Bianchini, L Buchmann, MA Casal, B Chanon, N Dissertori, G Dittmar, M Donegà, M Dünser, M Vidal Marono, M Stupak, J Eller, P Andreev, Y Grab, C Hits, D Hoss, J Lustermann, W Mangano, B Marini, AC Marionneau, M Martinez Ruiz Del Arbol, P Adair, A Masciovecchio, M Vizan Garcia, JM Dermenev, A Meister, D Mohr, N Musella, P Nägeli, C Nessi-Tedaldi, F Pandolfi, F Pauss, F Akgun, B Peruzzi, M Quittnat, M Rebane, L Gninenko, S Beliy, N Rossini, M Starodumov, A Takahashi, M Theofilatos, K Wallny, R Ecklund, KM Weber, HA Amsler, C Canelli, MF Chiochia, V Golubev, N De Cosa, A Caebergs, T Hinzmann, A Hreus, T Kilminster, B Geurts, FJM Lange, C Millan Mejias, B Ngadiuba, J Pinna, D Robmann, P Bruno, G Ronga, FJ Taroni, S Daubie, E Verzetti, M Trocino, D Li, W Yang, Y Cardaci, M Chen, KH Ferro, C Kuo, CM Lin, W Kirsanov, M Lu, YJ Volpe, R Yu, SS Michlin, B Jeitler, M Hammad, GH Chang, P Chang, YH Chang, YW Chao, Y Chen, KF Krasnikov, N Chen, PH Dietz, C Padley, BP Grundler, U Hou, W-S Kao, KY Aldá Júnior, WL Liu, YF Lu, R-S Majumder, D Petrakou, E Pashenkov, A Tzeng, YM Redjimi, R Wilken, R Asavapibhop, B Singh, G Srimanobhas, N Suwonjandee, N Alves, GA Adiguzel, A Bakirci, MN Cerci, S Tlisov, D Gonzalez Lopez, O Dozen, C Dumanoglu, I Eskut, E Girgis, S Gokbulut, G Gurpinar, E Hos, I Brito, L Kangal, EE Kayis Topaksu, A Rabady, D Toropin, A Onengut, G Ozdemir, K Ozturk, S Polatoz, A Sunar Cerci, D Tali, B Topakli, H Vergili, M Correa Martins Junior, M Gomez, JP Akin, IV Epshteyn, V Bilin, B Bilmis, S Gamsizkan, H Isildak, B Karapinar, G Ocalan, K Sekmen, S Surat, UE Roberts, J Yalvac, M Dos Reis Martins, T Gavrilov, V Zeyrek, M Albayrak, EA Gülmez, E Kaya, M Kaya, O Yetkin, T Cankocak, K Zabel, J Vardarll, FI Levchuk, L Sorokin, P Lychkovskaya, N Mora Herrera, C Brooke, JJ Clement, E Cussans, D Flacher, H Goldstein, J Betchart, B Grimes, M Heath, GP Heath, HF Jacob, J Popov, V Kreczko, L Pol, ME Lucas, C Meng, Z Newbold, DM Wang, R-J Bodek, A Paramesvaran, S Poll, A Sakuma, T Senkin, S Smith, VJ Pozdnyakov, I Williams, T Bell, KW Rebello Teles, P Belyaev, A Covarelli, R Brew, C Brown, RM Cockerill, DJA Coughlan, JA Harder, K Harper, S Castello, R Olaiya, E Petyt, D Shepherd-Themistocleous, CH De Barbaro, P Carvalho, W Thea, A Tomalin, IR Womersley, WJ Worm, SD Baber, M Bainbridge, R Safronov, G Buchmuller, O Burton, D Demina, R Colling, D Cripps, N Kiesenhofer, W Chinellato, J Dauncey, P Davies, G Della Negra, M Dunne, P Semenov, S Ferguson, W Eshaq, Y Fulcher, J Futyan, D Hall, G Iles, G Jarvis, M Custódio, A Karapostoli, G Kenzie, M Lane, R Spiridonov, A Goy Lopez, S Lucas, R Lyons, L Magnan, A-M Malik, S Mathias, B Nash, J Nikitenko, A Da Costa, EM Pela, J Pesaresi, M Ferbel, T Stolin, V Petridis, K Raymond, DM Rogerson, S Rose, A Seez, C Sharp, P Tapper, A Vazquez Acosta, M De Jesus Damiao, D Garcia-Bellido, A Virdee, T Vlasov, E Zenz, SC Cole, JE Hobson, PR Khan, A Kyberd, P Leggat, D Leslie, D Reid, ID Gomez Moreno, B Symonds, P De Oliveira Martins, C Zhokin, A Teodorescu, L Turner, M Dittmann, J Hatakeyama, K Kasmi, A Liu, H Scarborough, T Goldenzweig, P Charaf, O Cooper, SI Henderson, C Andreev, V Fonseca De Souza, S Rumerio, P Avetisyan, A Bose, T Fantasia, C Lawson, P Wood, D Han, J Richardson, C Rohlf, J St John, J Sulak, L Azarkin, M Alimena, J Malbouisson, H Berry, E Bhattacharya, S Christopher, G Harel, A Cutts, D Demiragli, Z Dhingra, N Ferapontov, A Garabedian, A Dremin, I Heintz, U Kukartsev, G Matos Figueiredo, D Laird, E Khukhunaishvili, A Landsberg, G Luk, M Narain, M Segala, M Sinthuprasith, T Speer, T Kirakosyan, M Swanson, J Breedon, R Breto, G Korjenevski, S Mundim, L Calderon De La Barca Sanchez, M Chauhan, S Chertok, M Conway, J Conway, R Cox, PT Caudron, A Erbacher, R Gardner, M Petrillo, G Ko, W Lander, R Nogima, H Miceli, T Mulhearn, M Pellett, D Pilot, J Ricci-Tam, F Leonidov, A Searle, M Vishnevskiy, D Shalhout, S Smith, J Squires, M Stolp, D Knünz, V Prado Da Silva, WL Tripathi, M Wilbur, S Yohay, R Mesyats, G Hernandez, JM Cousins, R Everaerts, P Farrell, C Hauser, J Ignatenko, M Rakness, G Takasugi, E Santaolalla, J Valuev, V Weber, M Ciesielski, R Rusakov, SV Burt, K Clare, R Ellison, J Gary, JW Hanson, G Heilman, J Ivova Rikova, M Jandir, P Santoro, A Demortier, L Kennedy, E Vinogradov, A Lacroix, F Long, OR Luthra, A Malberti, M Olmedo Negrete, M Shrinivas, A Sumowidagdo, S Wimpenny, S Goulianos, K Branson, JG Sznajder, A Belyaev, A Cerati, GB Cittolin, S D'Agnolo, RT Holzner, A Kelley, R Klein, D Letts, J Zhang, J Sanabria, JC Macneill, I Olivito, D Padhi, S Boos, E Tonelli Manganote, EJ Palmer, C Pieri, M Sani, M Sharma, V Simon, S Mesropian, C Tadel, M Tu, Y Vartak, A Welke, C Bunichev, V Würthwein, F Vilela Pereira, A Yagil, A Barge, D Bradmiller-Feld, J Arora, S Campagnari, C Danielson, T Dishaw, A Dutta, V Flowers, K Dubinin, M Franco Sevilla, M Geffert, P Bernardes, CA George, C Barker, A Golf, F Gouskos, L Incandela, J Justus, C McColl, N Richman, J Dudko, L Stuart, D To, W West, C Chou, JP Dogra, S Yoo, J Apresyan, A Bornheim, A Bunn, J Chen, Y Duarte, J Gribushin, A Mott, A Newman, HB Contreras-Campana, C Pena, C Pierini, M Fernandez Perez Tomei, TR Spiropulu, M Vlimant, JR Wilkinson, R Xie, S Zhu, RY Ceard, L Azzolini, V Contreras-Campana, E Calamba, A Carlson, B Ferguson, T Iiyama, Y Gregores, EM Paulini, M Russ, J Vogel, H Vorobiev, I Klyukhin, V Josa, MI Cumalat, JP Ford, WT Gaz, A Krohn, M Luiggi Lopez, E Nauenberg, U Krammer, M Mercadante, PG Smith, JG Stenson, K Duggan, D Kodolova, O Ulmer, KA Wagner, SR Alexander, J Chatterjee, A Chaves, J Chu, J Dittmer, S Eggert, N Novaes, SF Ferencek, D Mirman, N Lokhtin, I Nicolas Kaufman, G Patterson, JR Ryd, A Salvati, E Skinnari, L Sun, W Teo, WD Thom, J Hahn, KA Gershtein, Y Thompson, J Padula, SS Obraztsov, S Tucker, J Weng, Y Winstrom, L Wittich, P Winn, D Abdullin, S Albrow, M Gray, R Anderson, J Apollinari, G Bauerdick, LAT Perfilov, M Aleksandrov, A Beretvas, A Berryhill, J Bhat, PC Bolla, G Burkett, K Godinovic, N Butler, JN Cheung, HWK Chlebana, F Cihangir, S Petrushanko, S Elvira, VD Genchev, V Fisk, I Freeman, J Gao, Y Halkiadakis, E Gottschalk, E Gray, L Green, D Grünendahl, S Gutsche, O Savrin, V Hanlon, J Hare, D Hadjiiska, R Harris, RM Hidas, D Hirschauer, J Hooberman, B Jindariani, S Johnson, M Joshi, U Kaadze, K Azhgirey, I Klima, B Kreis, B Kwan, S Kaplan, S Iaydjiev, P Linacre, J Lincoln, D Lipton, R Liu, T Lykken, J Maeshima, K Bayshev, I Marraffino, JM Martinez Outschoorn, VI Lath, A Maruyama, S Mason, D Marinov, A McBride, 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Weinberg, M Baarmand, MM Hohlmann, M Ryutin, R Kalakhety, H Yumiceva, F Litov, L Adams, MR Stone, R Apanasevich, L Berry, D Betts, RR Bucinskaite, I Cavanaugh, R Evdokimov, O Sobol, A Gauthier, L Gerber, CE Hofman, DJ Thomas, S Pavlov, B Kurt, P Moon, DH O'Brien, C Sandoval Gonzalez, ID Silkworth, C Turner, P Tourtchanovitch, L Varelas, N Bilki, B Thomassen, P Clarida, W Dilsiz, K Petkov, P Haytmyradov, M Merlo, J-P Mermerkaya, H Mestvirishvili, A Moeller, A Troshin, S Nachtman, J Walker, M Ogul, H Onel, Y Ozok, F Penzo, A Bian, JG Rahmat, R Sen, S Tan, P Tiras, E Tyurin, N Pérez-Calero Yzquierdo, A Wetzel, J Yi, K Barnett, BA Blumenfeld, B Bolognesi, S Fehling, D Chen, GM Gritsan, AV Maksimovic, P Martin, C Mucia, N Rose, K Delaere, C Swartz, M Baringer, P Bean, A Benelli, G Bruner, C Kenny, RP Malek, M Chen, HS Murray, M Spanier, S Noonan, D Uzunian, A Sanders, S Sekaric, J Stringer, R Wang, Q Wood, JS Chakaberia, I Ivanov, A Khalil, S York, A Liko, D Chen, M Volkov, A Makouski, M 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Keller, J Knowlton, D Khotilovich, V Cerrada, M Kravchenko, I Lazo-Flores, J Meier, F Ratnikov, F Snow, GR Zvada, M Dolen, J Asawatangtrakuldee, C Godshalk, A Krutelyov, V Iashvili, I Du Pree, T Kharchilava, A Kumar, A Rappoccio, S Alverson, G Barberis, E Baumgartel, D Chasco, M Massironi, A Montalvo, R Ban, Y Morse, DM Osipenkov, I Pakhotin, Y Perloff, A Roe, J Puljak, I Rose, A Colino, N Safonov, A Quintario Olmeda, A Suarez, I Tatarinov, A Akchurin, N Cowden, C Damgov, J Dragoiu, C Dudero, PR Faulkner, J Li, Q Antunovic, Z Kovitanggoon, K Shulha, S Redondo, I Kunori, S Lee, SW Libeiro, T Volobouev, I Appelt, E Delannoy, AG Odell, N Greene, S Gurrola, A Johns, W Kovac, M Hörmann, N Maguire, C Mao, Y Melo, A Sharma, M Sheldon, P Pollack, B Snook, B Tuo, S Velkovska, J Arenton, MW Boutle, S Forthomme, L Brigljevic, V Cox, B Francis, B Goodell, J Pozdnyakov, A Hirosky, R Ledovskoy, A Li, H Lin, C Neu, C Wood, J Romero, L Clarke, C Rahbaran, B Kadija, K Schmitt, M Harr, R Karchin, PE 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Treberer-Treberspurg, W Tuuva, T Besancon, M Fernandez Menendez, J Couderc, F Dejardin, M Denegri, D Fabbro, B Drozdetskiy, A Faure, JL Favaro, C Ferri, F Ganjour, S Waltenberger, W Givernaud, A Folgueras, S Gras, P Hamel De Monchenault, G Jarry, P Hildreth, M Locci, E Malcles, J Rander, J Rosowsky, A Titov, M Baffioni, S Wulz, C-E Giammanco, A Beaudette, F Busson, P Jessop, C Charlot, C Dahms, T Dalchenko, M Dobrzynski, L Filipovic, N Florent, A Granier De Cassagnac, R Mastrolorenzo, L Gonzalez Caballero, I Mossolov, V Karmgard, DJ Miné, P Mironov, C Naranjo, IN Nguyen, M Ochando, C Paganini, P Regnard, S Salerno, R Sauvan, JB Brochero Cifuentes, JA Kellams, N Sirois, Y Shumeiko, N Veelken, C Yilmaz, Y Zabi, A Agram, J-L Andrea, J Aubin, A Bloch, D Brom, J-M Lannon, K Cabrillo, IJ Chabert, EC Collard, C Suarez Gonzalez, J Conte, E Fontaine, J-C Gelé, D Goerlach, U Goetzmann, C Le Bihan, A-C Lynch, S Skovpen, K Calderon, A Van Hove, P Gadrat, S Beauceron, S Alderweireldt, S Beaupere, N 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L Teyssier, D Thüer, S Weber, M Cherepanov, V Erdogan, Y Valls, N Marco, R Lauwers, J Flügge, G Geenen, H Geisler, M Haj Ahmad, W Hoehle, F Kargoll, B Kress, T Kuessel, Y Wayne, M Künsken, A Martinez Rivero, C Lingemann, J Luyckx, S Nowack, A Nugent, IM Perchalla, L Pooth, O Stahl, A Aldaya Martin, M Wolf, M Asin, I Bartosik, N Matorras, F Behr, J Behrens, U Ochesanu, S Bell, AJ Bethani, A Borras, K Burgmeier, A Woodard, A Cakir, A Calligaris, L Campbell, A Munoz Sanchez, FJ Choudhury, S Costanza, F Diez Pardos, C Rougny, R Dolinska, G Dooling, S Domínguez Vázquez, D Dorland, T Eckerlin, G Eckstein, D Eichhorn, T Piedra Gomez, J Flucke, G Garay Garcia, J Geiser, A Gunnellini, P Van De Klundert, M Antonelli, L Hauk, J Hempel, M Jung, H Kalogeropoulos, A Kasemann, M Zarubin, A Rodrigo, T Katsas, P Kieseler, J Kleinwort, C Brinson, J Korol, I Krücker, D Van Haevermaet, H Lange, W Leonard, J Lipka, K Lobanov, A Rodríguez-Marrero, AY Lohmann, W Lutz, B Bylsma, B Mankel, R Marfin, I 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Biasotto, M Bisello, D Branca, A Malik, S Carlin, R Checchia, P Dall'Osso, M Dorigo, T Dosselli, U Fanzago, F Vander Velde, C Lemaitre, V Galanti, M Gasparini, U Flix, J Giubilato, P Gozzelino, A Lacaprara, S Margoni, M Meneguzzo, AT Pazzini, J Pozzobon, N Ronchese, P Dobson, M Vanlaer, P |
Keywords: | Proton-proton collisions;Long-lived particles;CMS detector |
Issue Date: | 2015 |
Publisher: | American Physical Society |
Citation: | Physical Review D, 91: 052012, (2015) |
Abstract: | A search is performed for long-lived particles that decay into final states that include a pair of electrons or a pair of muons. The experimental signature is a distinctive topology consisting of a pair of charged leptons originating from a displaced secondary vertex. Events corresponding to an integrated luminosity of 19.6(20.5)fb-1 in the electron (muon) channel were collected with the CMS detector at the CERN LHC in proton-proton collisions at s=8TeV. No significant excess is observed above standard model expectations. Upper limits on the product of the cross section and branching fraction of such a signal are presented as a function of the long-lived particle's mean proper decay length. The limits are presented in an approximately model-independent way, allowing them to be applied to a wide class of models yielding the above topology. Over much of the investigated parameter space, the limits obtained are the most stringent to date. In the specific case of a model in which a Higgs boson in the mass range 125-1000GeV/c2 decays into a pair of long-lived neutral bosons in the mass range 20-350GeV/c2, each of which can then decay to dileptons, the upper limits obtained are typically in the range 0.2-10 fb for mean proper decay lengths of the long-lived particles in the range 0.01-100 cm. In the case of the lowest Higgs mass considered (125GeV/c2), the limits are in the range 2-50 fb. These limits are sensitive to Higgs boson branching fractions as low as 10-4. |
URI: | http://journals.aps.org/prd/abstract/10.1103/PhysRevD.91.052012 http://bura.brunel.ac.uk/handle/2438/10795 |
DOI: | http://dx.doi.org/10.1103/PhysRevD.91.052012 |
ISSN: | 1550-7998 1550-2368 |
Appears in Collections: | Dept of Electronic and Electrical Engineering Research Papers
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