Searches for supersymmetry using the MT2 variable in hadronic events produced in pp collisions at 8 TeV

Journal of High Energy Physics Springer Nature 2015:5 (2015) 78

Authors:

The CMS collaboration, V Khachatryan, AM Sirunyan, A Tumasyan, W Adam, T Bergauer, M Dragicevic, J Erö, M Friedl, R Frühwirth, VM Ghete, C Hartl, N Hörmann, J Hrubec, M Jeitler, W Kiesenhofer, V Knünz, M Krammer, I Krätschmer, D Liko, I Mikulec, D Rabady, B Rahbaran, H Rohringer, R Schöfbeck, J Strauss, W Treberer-Treberspurg, W Waltenberger, C-E Wulz, V Mossolov, N Shumeiko, J Suarez Gonzalez, S Alderweireldt, S Bansal, T Cornelis, EA De Wolf, X Janssen, A Knutsson, J Lauwers, S Luyckx, S Ochesanu, R Rougny, M Van De Klundert, H Van Haevermaet, P Van Mechelen, N Van Remortel, A Van Spilbeeck, F Blekman, S Blyweert, J D’Hondt, N Daci, N Heracleous, J Keaveney, S Lowette, M Maes, A Olbrechts, Q Python, D Strom, S Tavernier, W Van Doninck, P Van Mulders, GP Van Onsem, I Villella, C Caillol, B Clerbaux, G De Lentdecker, D Dobur, L Favart, APR Gay, A Grebenyuk, A Léonard, A Mohammadi, L Perniè, A Randle-conde, T Reis, T Seva, L Thomas, C Vander Velde, P Vanlaer, J Wang, F Zenoni, V Adler, K Beernaert, L Benucci, A Cimmino, S Costantini, S Crucy, S Dildick, A Fagot, G Garcia, J Mccartin, AA Ocampo Rios, D Ryckbosch, S Salva Diblen, M Sigamani, N Strobbe, F Thyssen, M Tytgat, E Yazgan, N Zaganidis, S Basegmez, C Beluffi, G Bruno, R Castello, A Caudron, L Ceard, GG Da Silveira, C Delaere, T du Pree, D Favart, L Forthomme, A Giammanco, J Hollar, A Jafari, P Jez, M Komm, V Lemaitre, C Nuttens, L Perrini, A Pin, K Piotrzkowski, A Popov, L Quertenmont, M Selvaggi, M Vidal Marono, JM Vizan Garcia, N Beliy, T Caebergs, E Daubie, GH Hammad, WL Aldá Júnior, GA Alves, L Brito, M Correa Martins Junior, T Dos Reis Martins, J Molina, C Mora Herrera, ME Pol, P Rebello Teles, W Carvalho, J Chinellato, A Custódio, EM Da Costa, D De Jesus Damiao, C De Oliveira Martins, S Fonseca De Souza, H Malbouisson, D Matos Figueiredo, L Mundim, H Nogima, WL Prado Da Silva, J Santaolalla, A Santoro, A Sznajder, EJ Tonelli Manganote, A Vilela Pereira, CA Bernardes, S Dogra, TR Fernandez Perez Tomei, EM Gregores, PG Mercadante, SF Novaes, Sandra S Padula, A Aleksandrov, V Genchev, R Hadjiiska, P Iaydjiev, A Marinov, S Piperov, M Rodozov, S Stoykova, G Sultanov, M Vutova, A Dimitrov, I Glushkov, L Litov, B Pavlov, P Petkov, JG Bian, GM Chen, HS Chen, M Chen, T Cheng, R Du, CH Jiang, R Plestina, F Romeo, J Tao, Z Wang, C Asawatangtrakuldee, Y Ban, Q Li, S Liu, Y Mao, SJ Qian, D Wang, Z Xu, W Zou, C Avila, A Cabrera, LF Chaparro Sierra, C Florez, JP Gomez, B Gomez Moreno, JC Sanabria, N Godinovic, D Lelas, D Polic, I Puljak, Z Antunovic, M Kovac, V Brigljevic, K Kadija, J Luetic, D Mekterovic, L Sudic, A Attikis, G Mavromanolakis, J Mousa, C Nicolaou, F Ptochos, PA Razis, M Bodlak, M Finger, M Finger, Y Assran, A Ellithi Kamel, MA Mahmoud, A Radi, M Kadastik, M Murumaa, M Raidal, A Tiko, P Eerola, G Fedi, M Voutilainen, J Härkönen, V Karimäki, R Kinnunen, MJ Kortelainen, T Lampén, K Lassila-Perini, S Lehti, T Lindén, P Luukka, T Mäenpää, T Peltola, E Tuominen, J Tuominiemi, E Tuovinen, L Wendland, J Talvitie, T Tuuva, M Besancon, F Couderc, M Dejardin, D Denegri, B Fabbro, JL Faure, C Favaro, F Ferri, S Ganjour, A Givernaud, P Gras, G Hamel de Monchenault, P Jarry, E Locci, J Malcles, J Rander, A Rosowsky, M Titov, S Baffioni, F Beaudette, P Busson, C Charlot, T Dahms, M Dalchenko, L Dobrzynski, N Filipovic, A Florent, R Granier de Cassagnac, L Mastrolorenzo, P Miné, IN Naranjo, M Nguyen, C Ochando, G Ortona, P Paganini, S Regnard, R Salerno, JB Sauvan, Y Sirois, C Veelken, Y Yilmaz, A Zabi, J-L Agram, J Andrea, A Aubin, D Bloch, J-M Brom, EC Chabert, C Collard, E Conte, J-C Fontaine, D Gelé, U Goerlach, C Goetzmann, A-C Le Bihan, K Skovpen, P Van Hove, S Gadrat, S Beauceron, N Beaupere, C Bernet, G Boudoul, E Bouvier, S Brochet, CA Carrillo Montoya, J Chasserat, R Chierici, D Contardo, P Depasse, H El Mamouni, J Fan, J Fay, S Gascon, M Gouzevitch, B Ille, T Kurca, M Lethuillier, L Mirabito, S Perries, JD Ruiz Alvarez, D Sabes, L Sgandurra, V Sordini, M Vander Donckt, 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Jung, A Kalogeropoulos, M Kasemann, P Katsas, J Kieseler, C Kleinwort, I Korol, D Krücker, W Lange, J Leonard, K Lipka, A Lobanov, W Lohmann, B Lutz, R Mankel, I Marfin, I-A Melzer-Pellmann, AB Meyer, G Mittag, J Mnich, A Mussgiller, S Naumann-Emme, A Nayak, E Ntomari, H Perrey, D Pitzl, R Placakyte, A Raspereza, PM Ribeiro Cipriano, B Roland, E Ron, MÖ Sahin, J Salfeld-Nebgen, P Saxena, T Schoerner-Sadenius, M Schröder, C Seitz, S Spannagel, ADR Vargas Trevino, R Walsh, C Wissing, V Blobel, M Centis Vignali, AR Draeger, J Erfle, E Garutti, K Goebel, M Görner, J Haller, M Hoffmann, RS Höing, A Junkes, H Kirschenmann, R Klanner, R Kogler, J Lange, T Lapsien, T Lenz, I Marchesini, J Ott, T Peiffer, A Perieanu, N Pietsch, J Poehlsen, T Poehlsen, D Rathjens, C Sander, H Schettler, P Schleper, E Schlieckau, A Schmidt, M Seidel, V Sola, H Stadie, G Steinbrück, D Troendle, E Usai, L Vanelderen, A Vanhoefer, C Barth, C Baus, J Berger, C Böser, E Butz, T Chwalek, W De Boer, A Descroix, A Dierlamm, M Feindt, F Frensch, M Giffels, A Gilbert, F Hartmann, T Hauth, U Husemann, I Katkov, A Kornmayer, P Lobelle Pardo, MU Mozer, T Müller, Th Müller, A Nürnberg, G Quast, K Rabbertz, S Röcker, HJ Simonis, FM Stober, R Ulrich, J Wagner-Kuhr, S Wayand, T Weiler, R Wolf, G Anagnostou, G Daskalakis, T Geralis, VA Giakoumopoulou, A Kyriakis, D Loukas, A Markou, C Markou, A Psallidas, I Topsis-Giotis, A Agapitos, S Kesisoglou, A Panagiotou, N Saoulidou, E Stiliaris, X Aslanoglou, I Evangelou, G Flouris, C Foudas, P Kokkas, N Manthos, I Papadopoulos, E Paradas, J Strologas, G Bencze, C Hajdu, P Hidas, D Horvath, F Sikler, V Veszpremi, G Vesztergombi, AJ Zsigmond, N Beni, S Czellar, J Karancsi, J Molnar, J Palinkas, Z Szillasi, A Makovec, P Raics, ZL Trocsanyi, B Ujvari, SK Swain, SB Beri, V Bhatnagar, R Gupta, U Bhawandeep, AK Kalsi, M Kaur, R Kumar, M Mittal, N Nishu, JB Singh, Ashok Kumar, Arun Kumar, S Ahuja, A Bhardwaj, BC Choudhary, A Kumar, S Malhotra, M Naimuddin, K Ranjan, V Sharma, S Banerjee, S Bhattacharya, K Chatterjee, S Dutta, B Gomber, Sa Jain, Sh Jain, R Khurana, A Modak, S Mukherjee, D Roy, S Sarkar, M Sharan, A Abdulsalam, D Dutta, V Kumar, AK Mohanty, LM Pant, P Shukla, A Topkar, T Aziz, S Banerjee, S Bhowmik, RM Chatterjee, RK Dewanjee, S Dugad, S Ganguly, S Ghosh, M Guchait, A Gurtu, G Kole, S Kumar, M Maity, G Majumder, K Mazumdar, GB Mohanty, B Parida, K Sudhakar, N Wickramage, H Bakhshiansohi, H Behnamian, SM Etesami, A Fahim, R Goldouzian, M Khakzad, M Mohammadi Najafabadi, M Naseri, S Paktinat Mehdiabadi, F Rezaei Hosseinabadi, B Safarzadeh, M Zeinali, M Felcini, M Grunewald, M Abbrescia, C Calabria, SS Chhibra, A Colaleo, D Creanza, N De Filippis, M De Palma, L Fiore, G Iaselli, G Maggi, M Maggi, S My, S Nuzzo, A Pompili, G Pugliese, R Radogna, G Selvaggi, A Sharma, L Silvestris, R Venditti, P Verwilligen, G Abbiendi, AC Benvenuti, D Bonacorsi, S Braibant-Giacomelli, L Brigliadori, R Campanini, P Capiluppi, A Castro, FR Cavallo, G 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Dhingra, A Ferapontov, A Garabedian, U Heintz, G Kukartsev, E Laird, G Landsberg, M Luk, M Narain, M Segala, T Sinthuprasith, T Speer, J Swanson, R Breedon, G Breto, M Calderon De La Barca Sanchez, S Chauhan, M Chertok, J Conway, R Conway, PT Cox, R Erbacher, M Gardner, W Ko, R Lander, M Mulhearn, D Pellett, J Pilot, F Ricci-Tam, S Shalhout, J Smith, M Squires, D Stolp, M Tripathi, S Wilbur, R Yohay, R Cousins, P Everaerts, C Farrell, J Hauser, M Ignatenko, G Rakness, E Takasugi, V Valuev, M Weber, K Burt, R Clare, J Ellison, JW Gary, G Hanson, J Heilman, M Ivova Rikova, P Jandir, E Kennedy, F Lacroix, OR Long, A Luthra, M Malberti, M Olmedo Negrete, A Shrinivas, S Sumowidagdo, S Wimpenny, JG Branson, GB Cerati, S Cittolin, RT D’Agnolo, A Holzner, R Kelley, D Klein, J Letts, I Macneill, D Olivito, S Padhi, C Palmer, M Pieri, M Sani, V Sharma, S Simon, M Tadel, Y Tu, A Vartak, C Welke, F Würthwein, A Yagil, D Barge, J Bradmiller-Feld, C Campagnari, T Danielson, A Dishaw, V Dutta, K Flowers, M Franco Sevilla, P Geffert, C George, F Golf, L Gouskos, J Incandela, C Justus, N Mccoll, J Richman, D Stuart, W To, C West, J Yoo, A Apresyan, A Bornheim, J Bunn, Y Chen, J Duarte, A Mott, HB Newman, C Pena, M Pierini, M Spiropulu, JR Vlimant, R Wilkinson, S Xie, RY Zhu, V Azzolini, A Calamba, B Carlson, T Ferguson, Y Iiyama, M Paulini, J Russ, H Vogel, I Vorobiev, JP Cumalat, WT Ford, A Gaz, M Krohn, E Luiggi Lopez, U Nauenberg, JG Smith, K Stenson, SR Wagner, J Alexander, A Chatterjee, J Chaves, J Chu, S Dittmer, N Eggert, N Mirman, G Nicolas Kaufman, JR Patterson, A Ryd, E Salvati, L Skinnari, W Sun, WD Teo, J Thom, J Thompson, J Tucker, Y Weng, L Winstrom, P Wittich, D Winn, S Abdullin, M Albrow, J Anderson, G Apollinari, LAT Bauerdick, A Beretvas, J Berryhill, PC Bhat, G Bolla, K Burkett, JN Butler, HWK Cheung, F Chlebana, S Cihangir, VD Elvira, I Fisk, J Freeman, Y Gao, E Gottschalk, L Gray, D Green, S Grünendahl, O Gutsche, J Hanlon, D Hare, RM Harris, J Hirschauer, B Hooberman, S Jindariani, M Johnson, U Joshi, B Klima, B Kreis, S Kwan, J Linacre, D Lincoln, R Lipton, T Liu, J Lykken, K Maeshima, JM Marraffino, VI Martinez Outschoorn, S Maruyama, D Mason, P McBride, P Merkel, K Mishra, S Mrenna, S Nahn, C Newman-Holmes, V O’Dell, O Prokofyev, E Sexton-Kennedy, S Sharma, A Soha, WJ Spalding, L Spiegel, L Taylor, S Tkaczyk, NV Tran, L Uplegger, EW Vaandering, R Vidal, A Whitbeck, J Whitmore, F Yang, D Acosta, P Avery, P Bortignon, D Bourilkov, M Carver, D Curry, S Das, M De Gruttola, GP Di Giovanni, RD Field, M Fisher, IK Furic, J Hugon, J Konigsberg, A Korytov, T Kypreos, JF Low, K Matchev, H Mei, P Milenovic, G Mitselmakher, L Muniz, A Rinkevicius, L Shchutska, M Snowball, D Sperka, J Yelton, M Zakaria, S Hewamanage, S Linn, P Markowitz, G Martinez, JL Rodriguez, T Adams, A Askew, J Bochenek, B Diamond, J Haas, S Hagopian, V Hagopian, KF Johnson, H Prosper, V Veeraraghavan, M Weinberg, MM Baarmand, M Hohlmann, H Kalakhety, F Yumiceva, MR Adams, L Apanasevich, D Berry, RR Betts, I Bucinskaite, R Cavanaugh, O Evdokimov, L Gauthier, CE Gerber, DJ Hofman, P Kurt, C O’Brien, ID Sandoval Gonzalez, C Silkworth, P Turner, N Varelas, B Bilki, W Clarida, K Dilsiz, M Haytmyradov, J-P Merlo, H Mermerkaya, A Mestvirishvili, A Moeller, J Nachtman, H Ogul, Y Onel, F Ozok, A Penzo, R Rahmat, S Sen, P Tan, E Tiras, J Wetzel, K Yi, BA Barnett, B Blumenfeld, S Bolognesi, D Fehling, AV Gritsan, P Maksimovic, C Martin, M Swartz, P Baringer, A Bean, G Benelli, C Bruner, J Gray, RP Kenny, D Majumder, M Malek, M Murray, D Noonan, S Sanders, J Sekaric, R Stringer, Q Wang, JS Wood, I Chakaberia, A Ivanov, K Kaadze, S Khalil, M Makouski, Y Maravin, LK Saini, N Skhirtladze, I Svintradze, J Gronberg, D Lange, F Rebassoo, D Wright, A Baden, A Belloni, B Calvert, SC Eno, JA Gomez, NJ Hadley, RG Kellogg, T Kolberg, Y Lu, AC Mignerey, K Pedro, A Skuja, MB Tonjes, SC Tonwar, A Apyan, R Barbieri, W Busza, IA Cali, M Chan, L Di Matteo, G Gomez Ceballos, M Goncharov, D Gulhan, M Klute, YS Lai, Y-J Lee, A Levin, PD Luckey, C Paus, D Ralph, C Roland, G Roland, GSF Stephans, K Sumorok, D Velicanu, J Veverka, B Wyslouch, M Yang, M Zanetti, V Zhukova, B Dahmes, A Gude, SC Kao, K Klapoetke, Y Kubota, J Mans, S Nourbakhsh, N Pastika, R Rusack, A Singovsky, N Tambe, J Turkewitz, JG Acosta, S Oliveros, E Avdeeva, K Bloom, S Bose, DR Claes, A Dominguez, R Gonzalez Suarez, J Keller, D Knowlton, I Kravchenko, J Lazo-Flores, F Meier, F Ratnikov, GR Snow, M Zvada, J Dolen, A Godshalk, I Iashvili, A Kharchilava, A Kumar, S Rappoccio, G Alverson, E Barberis, D Baumgartel, M Chasco, A Massironi, DM Morse, D Nash, T Orimoto, D Trocino, R-J Wang, D Wood, J Zhang, KA Hahn, A Kubik, N Mucia, N Odell, B Pollack, A Pozdnyakov, M Schmitt, S Stoynev, K Sung, M Velasco, S Won, A Brinkerhoff, KM Chan, A Drozdetskiy, M Hildreth, C Jessop, DJ Karmgard, N Kellams, K Lannon, S Lynch, N Marinelli, Y Musienko, T Pearson, M Planer, R Ruchti, G Smith, N Valls, M Wayne, M Wolf, A Woodard, L Antonelli, J Brinson, B Bylsma, LS Durkin, S Flowers, A Hart, C Hill, R Hughes, K Kotov, TY Ling, W Luo, D Puigh, M Rodenburg, BL Winer, H Wolfe, HW Wulsin, O Driga, P Elmer, J Hardenbrook, P Hebda, SA Koay, P Lujan, D Marlow, T Medvedeva, M Mooney, J Olsen, P Piroué, X Quan, H Saka, D Stickland, C Tully, JS Werner, A Zuranski, E Brownson, S Malik, H Mendez, JE Ramirez Vargas, VE Barnes, D Benedetti, D Bortoletto, M De Mattia, L Gutay, Z Hu, MK Jha, M Jones, K Jung, M Kress, N Leonardo, DH Miller, N Neumeister, BC Radburn-Smith, X Shi, I Shipsey, D Silvers, A Svyatkovskiy, F Wang, W Xie, L Xu, J Zablocki, N Parashar, J Stupak, A Adair, B Akgun, KM Ecklund, FJM Geurts, W Li, B Michlin, BP Padley, R Redjimi, J Roberts, J Zabel, B Betchart, A Bodek, R Covarelli, P de Barbaro, R Demina, Y Eshaq, T Ferbel, A Garcia-Bellido, P Goldenzweig, J Han, A Harel, O Hindrichs, A Khukhunaishvili, S Korjenevski, G Petrillo, D Vishnevskiy, R Ciesielski, L Demortier, K Goulianos, C Mesropian, S Arora, A Barker, JP Chou, C Contreras-Campana, E Contreras-Campana, D Duggan, D Ferencek, Y Gershtein, R Gray, E Halkiadakis, D Hidas, S Kaplan, A Lath, S Panwalkar, M Park, R Patel, S Salur, S Schnetzer, D Sheffield, S Somalwar, R Stone, S Thomas, P Thomassen, M Walker, K Rose, S Spanier, A York, O Bouhali, A Castaneda Hernandez, R Eusebi, W Flanagan, J Gilmore, T Kamon, V Khotilovich, V Krutelyov, R Montalvo, I Osipenkov, Y Pakhotin, A Perloff, J Roe, A Rose, A Safonov, I Suarez, A Tatarinov, KA Ulmer, N Akchurin, C Cowden, J Damgov, C Dragoiu, PR Dudero, J Faulkner, K Kovitanggoon, S Kunori, SW Lee, T Libeiro, I Volobouev, E Appelt, AG Delannoy, S Greene, A Gurrola, W Johns, C Maguire, Y Mao, A Melo, M Sharma, P Sheldon, B Snook, S Tuo, J Velkovska, MW Arenton, S Boutle, B Cox, B Francis, J Goodell, R Hirosky, A Ledovskoy, H Li, C Lin, C Neu, J Wood, C Clarke, R Harr, PE Karchin, C Kottachchi Kankanamge Don, P Lamichhane, J Sturdy, DA Belknap, D Carlsmith, M Cepeda, S Dasu, L Dodd, S Duric, E Friis, R Hall-Wilton, M Herndon, A Hervé, P Klabbers, A Lanaro, C Lazaridis, A Levine, R Loveless, A Mohapatra, I Ojalvo, T Perry, GA Pierro, G Polese, I Ross, T Sarangi, A Savin, WH Smith, D Taylor, C Vuosalo, N Woods

Search for W’→tb→qqbb decays in pp collisions at √s = 8 TeV with the ATLAS detector

European Physical Journal C 75:4 (2015) 1-23

Authors:

G Aad, B Abbott, J Abdallah, S Abdel Khalek, O Abdinov, R Aben, B Abi, M Abolins, OS AbouZeid, H Abramowicz, H Abreu, R Abreu, Y Abulaiti, BS Acharya, L Adamczyk, DL Adams, J Adelman, S Adomeit, T Adye, T Agatonovic-Jovin, JA Aguilar-Saavedra, M Agustoni, SP Ahlen, F Ahmadov, G Aielli, H Akerstedt, TPA Åkesson, G Akimoto, AV Akimov, GL Alberghi, J Albert, S Albrand, MJ Alconada Verzini, M Aleksa, IN Aleksandrov, C Alexa, G Alexander, G Alexandre, T Alexopoulos, M Alhroob, G Alimonti, L Alio, J Alison, BMM Allbrooke, LJ Allison, PP Allport, J Almond, A Aloisio, A Alonso, F Alonso, C Alpigiani, A Altheimer, B Alvarez Gonzalez, MG Alviggi, K Amako, Y Amaral Coutinho, C Amelung, D Amidei, SP Amor Dos Santos, A Amorim, S Amoroso, N Amram, G Amundsen, C Anastopoulos, LS Ancu, N Andari, T Andeen, CF Anders, G Anders, KJ Anderson, A Andreazza, V Andrei, XS Anduaga, S Angelidakis, I Angelozzi, P Anger, A Angerami, F Anghinolfi, AV Anisenkov, N Anjos, A Annovi, A Antonaki, M Antonelli, A Antonov, J Antos, F Anulli, M Aoki, L Aperio Bella, R Apolle, G Arabidze, I Aracena, Y Arai, JP Araque, ATH Arce, JF Arguin, S Argyropoulos, M Arik, AJ Armbruster, O Arnaez

Abstract:

A search for a massive W′ gauge boson decaying to a top quark and a bottom quark is performed with the ATLAS detector in pp collisions at the LHC. The datasetwas taken at a centre-of-mass energy of √s = 8 TeV and corresponds to 20.3 fb−1 of integrated luminosity. This analysis is done in the hadronic decay mode of the top quark, where novel jet substructure techniques are used to identify jets from high-momentum top quarks. This allows for a search for high-mass W′ bosons in the range 1.5-3.0 TeV. b-tagging is used to identify jets originating from b-quarks. The data are consistent with Standard Model background-only expectations, and upper limits at 95%confidence level are set on the W′ → tb cross section times branching ratio ranging from 0.16 pb to 0.33 pb for left-handed W′ bosons, and ranging from 0.10 pb to 0.21 pb for W′ bosons with purely righthanded couplings. Upper limits at 95% confidence level are set on the W′-boson coupling to tb as a function of the W′ mass using an effective field theory approach, which is independent of details of particular models predicting a W′ boson.

First measurement of the forward-backward asymmetry in bottom-quark pair production at high mass

(2015)

Authors:

CDF Collaboration, T Aaltonen, S Amerio, D Amidei, A Anastassov, A Annovi, J Antos, G Apollinari, JA Appel, T Arisawa, A Artikov, J Asaadi, W Ashmanskas, B Auerbach, A Aurisano, F Azfar, W Badgett, T Bae, A Barbaro-Galtieri, VE Barnes, BA Barnett, P Barria, P Bartos, M Bauce, F Bedeschi, S Behari, G Bellettini, J Bellinger, D Benjamin, A Beretvas, A Bhatti, KR Bland, B Blumenfeld, A Bocci, A Bodek, D Bortoletto, J Boudreau, A Boveia, L Brigliadori, C Bromberg, E Brucken, J Budagov, HS Budd, K Burkett, G Busetto, P Bussey, P Butti, A Buzatu, A Calamba, S Camarda, M Campanelli, F Canelli, B Carls, D Carlsmith, R Carosi, S Carrillo, B Casal, M Casarsa, A Castro, P Catastini, D Cauz, V Cavaliere, A Cerri, L Cerrito, YC Chen, M Chertok, G Chiarelli, G Chlachidze, K Cho, D Chokheli, A Clark, C Clarke, ME Convery, J Conway, M Corbo, M Cordelli, CA Cox, DJ Cox, M Cremonesi, D Cruz, J Cuevas, R Culbertson, N d'Ascenzo, M Datta, P de Barbaro, L Demortier, L Marchese, M Deninno, F Devoto, M D'Errico, A Di Canto, B Di Ruzza, JR Dittmann, M D'Onofrio, S Donati, M Dorigo, A Driutti, K Ebina, R Edgar, A Elagin, R Erbacher, S Errede, B Esham, S Farrington, JP Fernández Ramos, R Field, G Flanagan, R Forrest, M Franklin, JC Freeman, H Frisch, Y Funakoshi, C Galloni, AF Garfinkel, P Garosi, H Gerberich, E Gerchtein, S Giagu, V Giakoumopoulou, K Gibson, CM Ginsburg, N Giokaris, P Giromini, V Glagolev, D Glenzinski, M Gold, D Goldin, A Golossanov, G Gomez, G Gomez-Ceballos, M Goncharov, O González López, I Gorelov, AT Goshaw, K Goulianos, E Gramellini, C Grosso-Pilcher, RC Group, J Guimaraes da Costa, SR Hahn, JY Han, F Happacher, K Hara, M Hare, RF Harr, T Harrington-Taber, K Hatakeyama, C Hays, J Heinrich, M Herndon, A Hocker, Z Hong, W Hopkins, S Hou, RE Hughes, U Husemann, M Hussein, J Huston, G Introzzi, M Iori, A Ivanov, E James, D Jang, B Jayatilaka, EJ Jeon, S Jindariani, M Jones, KK Joo, SY Jun, TR Junk, M Kambeitz, T Kamon, PE Karchin, A Kasmi, Y Kato, W Ketchum, J Keung, B Kilminster, DH Kim, HS Kim, JE Kim, MJ Kim, SB Kim, SH Kim, YK Kim, YJ Kim, N Kimura, M Kirby, K Knoepfel, K Kondo, DJ Kong, J Konigsberg, AV Kotwal, M Kreps, J Kroll, M Kruse, T Kuhr, M Kurata, AT Laasanen, S Lammel, M Lancaster, K Lannon, G Latino, HS Lee, JS Lee, S Leo, S Leone, JD Lewis, A Limosani, E Lipeles, A Lister, H Liu, Q Liu, T Liu, S Lockwitz, A Loginov, A Lucà, D Lucchesi, J Lueck, P Lujan, P Lukens, G Lungu, J Lys, R Lysak, R Madrak, P Maestro, S Malik, G Manca, A Manousakis-Katsikakis, F Margaroli, P Marino, K Matera, ME Mattson, A Mazzacane, P Mazzanti, R McNulty, A Mehta, P Mehtala, C Mesropian, T Miao, D Mietlicki, A Mitra, H Miyake, S Moed, N Moggi, CS Moon, R Moore, MJ Morello, A Mukherjee, Th Muller, P Murat, M Mussini, J Nachtman, Y Nagai, J Naganoma, I Nakano, A Napier, J Nett, C Neu, T Nigmanov, L Nodulman, SY Noh, O Norniella, L Oakes, SH Oh, YD Oh, I Oksuzian, T Okusawa, R Orava, L Ortolan, C Pagliarone, E Palencia, P Palni, V Papadimitriou, W Parker, G Pauletta, M Paulini, C Paus, TJ Phillips, G Piacentino, E Pianori, J Pilot, K Pitts, C Plager, L Pondrom, S Poprocki, K Potamianos, F Prokoshin, A Pranko, F Ptohos, G Punzi, I Redondo Fernández, P Renton, M Rescigno, F Rimondi, L Ristori, A Robson, T Rodriguez, S Rolli, M Ronzani, R Roser, JL Rosner, F Ruffini, A Ruiz, J Russ, V Rusu, WK Sakumoto, Y Sakurai, L Santi, K Sato, V Saveliev, A Savoy-Navarro, P Schlabach, EE Schmidt, T Schwarz, L Scodellaro, F Scuri, S Seidel, Y Seiya, A Semenov, F Sforza, SZ Shalhout, T Shears, PF Shepard, M Shimojima, M Shochet, I Shreyber-Tecker, A Simonenko, K Sliwa, JR Smith, FD Snider, V Sorin, H Song, M Stancari, R St Denis, D Stentz, J Strologas, Y Sudo, A Sukhanov, I Suslov, K Takemasa, Y Takeuchi, J Tang, M Tecchio, PK Teng, J Thom, E Thomson, V Thukral, D Toback, S Tokar, K Tollefson, T Tomura, D Tonelli, S Torre, D Torretta, P Totaro, M Trovato, F Ukegawa, S Uozumi, F Vázquez, G Velev, C Vellidis, C Vernieri, M Vidal, R Vilar, J Vizán, M Vogel, G Volpi, P Wagner, R Wallny, SM Wang, D Waters, WC Wester, D Whiteson, AB Wicklund, S Wilbur, HH Williams, JS Wilson, P Wilson, BL Winer, P Wittich, S Wolbers, H Wolfe, T Wright, X Wu, Z Wu, K Yamamoto, D Yamato, T Yang, UK Yang, YC Yang, W-M Yao, GP Yeh, K Yi, J Yoh, K Yorita, T Yoshida, GB Yu, I Yu, AM Zanetti, Y Zeng, C Zhou, S Zucchelli

The peculiar radio galaxy 4C 35.06: a case for recurrent AGN activity?

(2015)

Authors:

A Shulevski, R Morganti, PD Barthel, M Murgia, RJ van Weeren, GJ White, M Brüggen, M Kunert-Bajraszewska, M Jamrozy, PN Best, HJA Röttgering, KT Chyzy, F de Gasperin, L Bîrzan, G Brunetti, M Brienza, DA Rafferty, J Anderson, R Beck, A Deller, P Zarka, D Schwarz, E Mahony, E Orrú, ME Bell, MJ Bentum, G Bernardi, A Bonafede, F Breitling, JW Broderick, HR Butcher, D Carbone, B Ciardi, E de Geus, S Duscha, J Eislöffel, D Engels, H Falcke, RA Fallows, R Fender, C Ferrari, W Frieswijk, MA Garrett, J Grießmeier, AW Gunst, G Heald, M Hoeft, J Hörandel, A Horneffer, AJ van der Horst, H Intema, E Juette, A Karastergiou, VI Kondratiev, M Kramer, M Kuniyoshi, G Kuper, P Maat, G Mann, R McFadden, D McKay-Bukowski, JP McKean, H Meulman, DD Mulcahy, H Munk, MJ Norden, H Paas, M Pandey-Pommier, R Pizzo, AG Polatidis, W Reich, A Rowlinson, AMM Scaife, M Serylak, J Sluman, O Smirnov, M Steinmetz, J Swinbank, M Tagger, Y Tang, C Tasse, S Thoudam, MC Toribio, R Vermeulen, C Vocks, RAMJ Wijers, MW Wise, O Wucknitz

Search for scalar charm quark pair production in pp collisions at sqrt[s]=8  TeV with the ATLAS detector

Physical Review Letters American Physical Society 114:16 (2015) 161801-161801

Authors:

SJ Kahn, M Kagan, H Kagan, CW Charles William, E Kajomovitz, A Kamenshchikov, S Kama, M Kaneda, S Kaneti, N Kanaya, VA Kantserov, J Kanzaki, B Kaplan, A Kapliy, K Karakostas, D Kar, N Karastathis, A Karamaoun, MJ Kareem, M Karnevskiy, ZM Karpova, V Kartvelishvili, K Karthik, AN Karyukhin

Abstract:

The results of a dedicated search for pair production of scalar partners of charm quarks are reported. The search is based on an integrated luminosity of 20.3  fb^{-1} of pp collisions at sqrt[s]=8  TeV recorded with the ATLAS detector at the LHC. The search is performed using events with large missing transverse momentum and at least two jets, where the two leading jets are each tagged as originating from c quarks. Events containing isolated electrons or muons are vetoed. In an R-parity-conserving minimal supersymmetric scenario in which a single scalar-charm state is kinematically accessible, and where it decays exclusively into a charm quark and a neutralino, 95% confidence-level upper limits are obtained in the scalar-charm-neutralino mass plane such that, for neutralino masses below 200 GeV, scalar-charm masses up to 490 GeV are excluded.