Title: | Performance of electron reconstruction and selection with the CMS detector in proton-proton collisions at √s=8 TeV |
Authors: | Khachatryan, V Sirunyan, AM Tumasyan, A Adam, W Bergauer, T Dragicevic, M Eroe, J Friedl, M Fruehwirth, R Ghete, VM Hartl, C Beluffi, C Karjavin, V Konoplyanikov, V Lanev, A Malakhov, A Matveev, V Moisenz, P Palichik, V Perelygin, V Shmatov, S Skatchkov, N Bruno, G Smirnov, V Zarubin, A Golovtsov, V Ivanov, Y Kim, V Kuznetsova, E Levchenko, P Murzin, V Oreshkin, V Smirnov, I Castello, R Sulimov, V Uvarov, L Vavilov, S Vorobyev, A Vorobyev, A Andreev, Y Dermenev, A Gninenko, S Golubev, N Kirsanov, M Caudron, A Krasnikov, N Pashenkov, A Tlisov, D Toropin, A Epshteyn, V Gavrilov, V Lychkovskaya, N Popov, V Pozdnyakov, I Safronov, G Ceard, L Semenov, S Spiridonov, A Stolin, V Vlasov, E Zhokin, A Andreev, V Azarkin, M Dremin, I Kirakosyan, M Leonidov, A Da Silveira, GG Mesyats, G Rusakov, SV Vinogradov, A Belyaev, A Boos, E Dubinin, M Dudko, L Ershov, A Gribushin, A Kaminskiy, A Delaere, C Klyukhin, V Kodolova, O Lokhtin, I Obraztsov, S Petrushanko, S Savrin, V Azhgirey, I Bayshev, I Bitioukov, S Kachanov, V du Pree, T Kalinin, A Konstantinov, D Krychkine, V Petrov, V Ryutin, R Sobol, A Tourtchanovitch, L Troshin, S Tyurin, N Uzunian, A Favart, D Volkov, A Adzic, P Ekmedzic, M Milosevic, J Rekovic, V Alcaraz Maestre, J Battilana, C Calvo, E Cerrada, M Chamizo Llatas, M Forthomme, L Colino, N De La Cruz, B Delgado Peris, A Dominguez Vazquez, D Escalante Del Valle, A Fernandez Bedoya, C Fernandez Ramos, JP Flix, J Fouz, MC Garcia-Abia, P Hoermann, N Giammanco, A Gonzalez Lopez, O Goy Lopez, S Hernandez, JM Josa, MI Navarro De Martino, E Perez-Calero Yzquierdo, A Puerta Pelayo, J Quintario Olmeda, A Redondo, I Romero, L Hollar, J Soares, MS Albajar, C de Troconiz, JF Missiroli, M Moran, D Brun, H Cuevas, J Fernandez Menendez, J Folgueras, S Gonzalez Caballero, I Jafari, A Brochero Cifuentes, JA Cabrillo, IJ Calderon, A Duarte Campderros, J Fernandez, M Gomez, G Graziano, A Lopez Virto, A Marco, J Marco, R Jez, P Martinez Rivero, C Matorras, F Munoz Sanchez, FJ Piedra Gomez, J Rodrigo, T Rodriguez-Marrero, AY Ruiz-Jimeno, A Scodellaro, L Vila, I Vilar Cortabitarte, R Komm, M Abbaneo, D Auffray, E Auzinger, G Bachtis, M Baillon, P Ball, AH Barney, D Benaglia, A Bendavid, J Benhabib, L Lemaitre, V Benitez, JF Bloch, P Bocci, A Bonato, A Bondu, O Botta, C Breuker, H Camporesi, T Cerminara, G Colafranceschi, S Nuttens, C D'Alfonso, M d'Enterria, D Dabrowski, A David, A De Guio, F De Roeck, A De Visscher, S Di Marco, E Dobson, M Dordevic, M Pagano, D Dorney, B Dupont-Sagorin, N Elliott-Peisert, A Franzoni, G Funk, W Gigi, D Gill, K Giordano, D Girone, M Glege, F Perrini, L Guida, R Gundacker, S Guthoff, M Hammer, J Hansen, M Harris, P Hegeman, J Innocente, V Janot, P Kousouris, K Pin, A Krajczar, K Lecoq, P Lourenco, C Magini, N Malgeri, L Mannelli, M Marrouche, J Masetti, L Meijers, F Mersi, S Hrubec, J Piotrzkowski, K Meschi, E Moortgat, F Morovic, S Mulders, M Orsini, L Pape, L Perez, E Petrilli, A Petrucciani, G Pfeiffer, A Popov, A Pimiae, M Piparo, D Plagge, M Racz, A Rolandi, G Rovere, M Sakulin, H Schaefer, C Schwick, C Sharma, A Quertenmont, L Siegrist, P Silva, P Simon, M Sphicas, P Spiga, D Steggemann, J Stieger, B Stoye, M Takahashi, Y Treille, D Selvaggi, M Tsirou, A Veres, GI Wardle, N Woehri, HK Wollny, H Zeuner, WD Bertl, W Deiters, K Erdmann, W Horisberger, R Marono, MV Ingram, Q Kaestli, HC Kotlinski, D Langenegger, U Renker, D Rohe, T Bachmair, F Baeni, L Bianchini, L Buchmann, MA Garcia, JMV Casal, B Chanon, N Dissertori, G Dittmar, M Donega, M Duenser, M Eller, P Grab, C Hits, D Hoss, J Beliy, N Kasieczka, G Lustermann, W Mangano, B Marini, AC Marionneau, M del Arbol, PMR Masciovecchio, M Meister, D Mohr, N Musella, P Caebergs, T Naegeli, C Nessi-Tedaldi, F Pandolfi, F Pauss, F Perrozzi, L Peruzzi, M Quittnat, M Rebane, L Rossini, M Starodumov, A Daubie, E Takahashi, M Theofilatos, K Wallny, R Weber, HA Amsler, C Canelli, MF Chiochia, V De Cosa, A Hinzmann, A Hreus, T Hammad, GH Kilminster, B Lange, C Ngadiuba, J Pinna, D Robmann, P Ronga, FJ Taroni, S Yang, Y Cardaci, M Chen, KH Jeitler, M Alda Junior, WL Ferro, C Kuo, CM Lin, W Lu, YJ Volpe, R Yu, SS Chang, P Chang, YH Chao, Y Chen, KF Alves, GA Chen, PH Dietz, C Grundler, U Hou, WS Liu, YF Lu, RS Moya, MM Petrakou, E Tzeng, YM Wilken, R Brito, L Asavapibhop, B Singh, G Srimanobhas, N Suwonjandee, N Adiguzel, A Bakirci, MN Cerci, S Dozen, C Dumanoglu, I Eskut, E Correa Martins Junior, M Girgis, S Gokbulut, G Guler, Y Gurpinar, E Hos, I Kangal, EE Topaksu, AK Onengut, G Ozdemir, K Ozturk, S Dos Reis Martins, T Polatoz, A Cerci, DS Tali, B Topakli, H Vergili, M Zorbilmez, C Akin, IV Bilin, B Bilmis, S Gamsizkan, H Molina, J Isildak, B Karapinar, G Ocalan, K Sekmen, S Surat, UE Yalvac, M Zeyrek, M Albayrak, EA Gulmez, E Kaya, M Mora Herrera, C Kaya, O Yetkin, T Cankocak, K Vardarli, FI Levchuk, L Sorokin, P Brooke, JJ Clement, E Cussans, D Flacher, H Pol, ME Goldstein, J Grimes, M Heath, GP Heath, HF Jacob, J Kreczko, L Lucas, C Meng, Z Newbold, DM Paramesvaran, S Rebello Teles, P Poll, A Sakuma, T El Nasr-Storey, SS Senkin, S Smith, VJ Bell, KW Belyaev, A Brew, C Brown, RM Cockerill, DJA Carvalho, W Coughlan, JA Harder, K Harper, S Olaiya, E Petyt, D Shepherd-Themistocleous, CH Thea, A Tomalin, IR Williams, T Womersley, WJ Kiesenhofer, W Chinellato, J Worm, SD Baber, M Bainbridge, R Buchmuller, O Burton, D Colling, D Cripps, N Dauncey, P Davies, G Della Negra, M Custodio, A Dunne, P Elwood, A Ferguson, W Fulcher, J Futyan, D Hall, G Iles, G Jarvis, M Karapostoli, G Kenzie, M Da Costa, EM Lane, R Lucas, R Lyons, L Magnan, AM Malik, S Mathias, B Nash, J Nikitenko, A Pela, J Pesaresi, M De Jesus Damiao, D Petridis, K Raymond, DM Rogerson, S Rose, A Seez, C Sharp, P Tapper, A Acosta, MV Virdee, T Zenz, SC De Oliveira Martins, C Cole, JE Hobson, PR Khan, A Kyberd, P Leggat, D Leslie, D Reid, ID Symonds, P Teodorescu, L Turner, M Fonseca De Souza, S Dittmann, J Hatakeyama, K Kasmi, A Liu, H Pastika, N Scarborough, T Wu, Z Charaf, O Cooper, SI Henderson, C Malbouisson, H Rumerio, P Avetisyan, A Bose, T Fantasia, C Lawson, P Richardson, C Rohlf, J St John, J Sulak, L Alimena, J Matos Figueiredo, D Berry, E Bhattacharya, S Christopher, G Cutts, D Demiragli, Z Dhingra, N Ferapontov, A Garabedian, A Heintz, U Laird, E Mundim, L Landsberg, G Narain, M Sagir, S Sinthuprasith, T Speer, T Swanson, J Breedon, R Breto, G Sanchez, MCDLB Chauhan, S Nogima, H Chertok, M Conway, J Conway, R Cox, PT Erbacher, R Gardner, M Ko, W Lander, R Mulhearn, M Pellett, D Knuenz, V Prado Da Silva, WL Pilot, J Ricci-Tam, F Shalhout, S Smith, J Squires, M Stolp, D Tripathi, M Wilbur, S Yohay, R Cousins, R Santaolalla, J Everaerts, P Farrell, C Hauser, J Ignatenko, M Rakness, G Takasugi, E Valuev, V Weber, M Burt, K Clare, R Santoro, A Ellison, J Gary, JW Hanson, G Heilman, J Rikova, MI Jandir, P Kennedy, E Lacroix, F Long, OR Luthra, A Sznajder, A Malberti, M Negrete, MO Shrinivas, A Sumowidagdo, S Wimpenny, S Branson, JG Cerati, GB Cittolin, S D'Agnolo, RT Holzner, A Tonelli Manganote, EJ Kelley, R Klein, D Letts, J Macneill, I Olivito, D Padhi, S Palmer, C Pieri, M Sani, M Sharma, V Vilela Pereira, A Simon, S Tadel, M Tu, Y Vartak, A Welke, C Wuerthwein, F Yagil, A Della Porta, GZ Barge, D Bradmiller-Feld, J Bernardes, CA Campagnari, C Danielson, T Dishaw, A Dutta, V Flowers, K Sevilla, MF Geffert, P George, C Golf, F Gouskos, L Dogra, S Incandela, J Justus, C Mccoll, N Mullin, SD Richman, J Stuart, D To, W West, C Yoo, J Apresyan, A Fernandez Perez Tomei, TR Bornheim, A Bunn, J Chen, Y Duarte, J Mott, A Newman, HB Pena, C Pierini, M Spiropulu, M Vlimant, JR Gregores, EM Wilkinson, R Xie, S Zhu, RY Azzolini, V Calamba, A Carlson, B Ferguson, T Iiyama, Y Paulini, M Russ, J Krammer, M Mercadante, PG Vogel, H Vorobiev, I Cumalat, JP Ford, WT Gaz, A Krohn, M Lopez, EL Nauenberg, U Smith, JG Stenson, K Novaes, SF Wagner, SR Alexander, J Chatterjee, A Chaves, J Chu, J Dittmer, S Eggert, N Mirman, N Kaufman, GN Patterson, JR Padula, SS Ryd, A Salvati, E Skinnari, L Sun, W Teo, WD Thom, J Thompson, J Tucker, J Weng, Y Winstrom, L Aleksandrov, A Wittich, P Winn, D Abdullin, S Albrow, M Anderson, J Apollinari, G Bauerdick, LAT Beretvas, A Berryhill, J Bhat, PC Genchev, V Bolla, G Burkett, K Butler, JN Cheung, HWK Chlebana, F Cihangir, S Elvira, VD Fisk, I Freeman, J Gottschalk, E Hadjiiska, R Gray, L Green, D Gruenendahl, S Gutsche, O Hanlon, J Hare, D Harris, RM Hirschauer, J Hooberman, B Jindariani, S Iaydjiev, P Johnson, M Joshi, U Klima, B Kreis, B Kwan, S Linacre, J Lincoln, D Lipton, R Liu, T De Sa, RL Marinov, A Lykken, J Maeshima, K Marraffino, JM Outschoorn, VIM Maruyama, S Mason, D McBride, P Merkel, P Mishra, K Mrenna, S Piperov, S Nahn, S Newman-Holmes, C O'Dell, V Prokofyev, O Sexton-Kennedy, E Soha, A Spalding, WJ Spiegel, L Taylor, L Tkaczyk, S Rodozov, M Tran, NV Uplegger, L Vaandering, EW Vidal, R Whitbeck, A Whitmore, J Yang, F Acosta, D Avery, P Bortignon, P Kraetschmer, I 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Cepeda, M Dasu, S Kadija, K Dodd, L Duric, S Friis, E Hall-Wilton, R Herndon, M Herve, A Klabbers, P Lanaro, A Lazaridis, C Levine, A Luetic, J Loveless, R Mohapatra, A Ojalvo, I Perry, T Pierro, GA Polese, G Ross, I Sarangi, T Savin, A Smith, WH Mekterovic, D Taylor, D Vuosalo, C Woods, N Sudic, L Attikis, A Mavromanolakis, G Mousa, J Nicolaou, C Rohringer, H Ptochos, F Razis, PA Rykaczewski, H Bodlak, M Finger, M Finger, M Assran, Y Kamel, AE Mahmoud, MA Radi, A Schoefbeck, R Kadastik, M Murumaa, M Raidal, M Tiko, A Eerola, P Voutilainen, M Harkonen, J Karimaki, V Kinnunen, R Kortelainen, MJ Strauss, J Lampen, T Lassila-Perini, K Lehti, S Linden, T Luukka, P Maenpaa, T Peltola, T Tuominen, E Tuominiemi, J Tuovinen, E Treberer-Treberspurg, W Wendland, L Talvitie, J Tuuva, T Besancon, M Couderc, F Dejardin, M Denegri, D Fabbro, B Faure, JL Favaro, C Waltenberger, W Ferri, F Ganjour, S Givernaud, A Gras, P de Monchenault, GH Jarry, P Locci, E Malcles, J Rander, J Rosowsky, A Wulz, CE 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X Klein, K Lipinski, M Ostapchuk, A Preuten, M Raupach, F Sammet, J Schael, S Schulte, JF Weber, H Wittmer, B Knutsson, A Zhukov, V Ata, M Brodski, M Dietz-Laursonn, E Duchardt, D Erdmann, M Fischer, R Gueth, A Hebbeker, T Heidemann, C Lauwers, J Hoepfner, K Klingebiel, D Knutzen, S Kreuzer, P Merschmeyer, M Meyer, A Millet, P Olschewski, M Padeken, K Papacz, P Luyckx, S Reithler, H Schmitz, SA Sonnenschein, L Teyssier, D Thueer, S Cherepanov, V Erdogan, Y Fluegge, G Geenen, H Geisler, M Ochesanu, S Ahmad, WH Hoehle, F Kargoll, B Kress, T Kuessel, Y Kuensken, A Lingemann, J Nowack, A Nugent, IM Pistone, C Rougny, R Pooth, O Stahl, A Martin, MA Asin, I Bartosik, N Behr, J Behrens, U Bell, AJ Bethani, A Borras, K Van De Klundert, M Burgmeier, A Cakir, A Calligaris, L Campbell, A Choudhury, S Costanza, F Pardos, CD Dolinska, G Dooling, S Dorland, T Van Haevermaet, H Eckerlin, G Eckstein, D Eichhorn, T Flucke, G Garcia, JG Geiser, A Gizhko, A Gunnellini, P Hauk, J Hempel, M Van Mechelen, P 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PG Gallinaro, M Lloret Iglesias, L Nguyen, F Basegmez, S Rodrigues Antunes, J Seixas, J Varela, J Vischia, P Afanasiev, S Bunin, P Gavrilenko, M Golutvin, I Gorbunov, I Kamenev, A |
Keywords: | Pattern recognition;Cluster finding;Calibration and fitting methods;Performance of high energy physics detectors |
Issue Date: | 2015 |
Publisher: | IOP Publishing |
Citation: | Journal of Instrumentation, 10: P06005, (2015) |
Abstract: | The performance and strategies used in electron reconstruction and selection at CMS are presented based on data corresponding to an integrated luminosity of 19.7 fb−1, collected in proton-proton collisions at √s = 8 TeV at the CERN LHC. The paper focuses on prompt isolated electrons with transverse momenta ranging from about 5 to a few 100 GeV. A detailed description is given of the algorithms used to cluster energy in the electromagnetic calorimeter and to reconstruct electron trajectories in the tracker. The electron momentum is estimated by combining the energy measurement in the calorimeter with the momentum measurement in the tracker. Benchmark selection criteria are presented, and their performances assessed using Z, Upsilon, and J/ψ decays into e+ + e− pairs. The spectra of the observables relevant to electron reconstruction and selection as well as their global efficiencies are well reproduced by Monte Carlo simulations. The momentum scale is calibrated with an uncertainty smaller than 0.3%. The momentum resolution for electrons produced in Z boson decays ranges from 1.7 to 4.5%, depending on electron pseudorapidity and energy loss through bremsstrahlung in the detector material. |
URI: | http://iopscience.iop.org/1748-0221/10/06/P06005/ http://bura.brunel.ac.uk/handle/2438/11279 |
DOI: | http://dx.doi.org/10.1088/1748-0221/10/06/P06005 |
ISSN: | 1748-0221 |
Appears in Collections: | Dept of Electronic and Electrical Engineering Research Papers
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