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Measurement of the electron reconstruction efficiency at LHCb

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Aaij_2019_J._Inst._14_P11023.pdfPublished version999.17 kBAdobe PDFView/Open
Title: Measurement of the electron reconstruction efficiency at LHCb
Authors: Aaij, R
Beteta, CA
Ackernley, T
Adeva, B
Adinolfi, M
Afsharnia, H
Aidala, CA
Aiola, S
Ajaltouni, Z
Akar, S
Albicocco, P
Albrecht, J
Alessio, F
Alexander, M
Albero, AA
Alkhazov, G
Cartelle, PA
Alves Jr, AA
Amato, S
Amhis, Y
An, L
Anderlini, L
Andreassi, G
Andreotti, M
Archilli, F
Romeu, JA
Artamonov, A
Artuso, M
Arzymatov, K
Aslanides, E
Atzeni, M
Audurier, B
Bachmann, S
Back, JJ
Baker, S
Balagura, V
Baldini, W
Baranov, A
Barlow, RJ
Barsuk, S
Barter, W
Bartolini, M
Baryshnikov, F
Bassi, G
Batozskaya, V
Batsukh, B
Battig, A
Battista, V
Bay, A
Becker, M
Bedeschi, F
Bediaga, I
Beiter, A
Bel, LJ
Belavin, V
Belin, S
Beliy, N
Bellee, V
Belous, K
Belyaev, I
Bencivenni, G
Ben-Haim, E
Benson, S
Beranek, S
Berezhnoy, A
Bernet, R
Berninghoff, D
Bernstein, HC
Bertholet, E
Bertolin, A
Betancourt, C
Betti, F
Bettler, MO
Bezshyiko, I
Bhasin, S
Bhom, J
Bieker, MS
Bifani, S
Billoir, P
Birnkraut, A
Bizzeti, A
Bjrn, M
Blago, MP
Blake, T
Blanc, F
Blusk, S
Bobulska, D
Bocci, V
Boente Garcia, O
Boettcher, T
Boldyrev, A
Bondar, A
Bondar, N
Borghi, S
Borisyak, M
Borsato, M
Borsuk, JT
Boubdir, M
Bowcock, TJ
Bozzi, C
Braun, S
Brea Rodriguez, A
Brodski, M
Brodzicka, J
Gonzalo, AB
Brundu, D
Buchanan, E
Buonaura, A
Burr, C
Bursche, A
Butter, JS
Buytaert, J
Byczynski, W
Cadeddu, S
Cai, H
Calabrese, R
Cali, S
Calladine, R
Calvi, M
Gomez, MC
Camboni, A
Campana, P
Perez, DHC
Capriotti, L
Carbone, A
Carboni, G
Cardinale, R
Cardini, A
Carniti, P
Akiba, KC
Casais Vidal, A
Casse, G
Cattaneo, M
Cavallero, G
Cenci, R
Cerasoli, J
Chapman, MG
Charles, M
Charpentier, P
Chatzikonstantinidis, G
Chefdeville, M
Chekalina, V
Chen, C
Chen, S
Chernov, A
Chitic, S-G
Chobanova, V
Chrzaszcz, M
Chubykin, A
Ciambrone, P
Cicala, MF
Cid Vidal, X
Ciezarek, G
Cindolo, F
Clarke, PEL
Clemencic, M
Cliff, H
Closier, J
Cobbledick, JL
Coco, V
Coelho, JAB
Cogan, J
Cogneras, E
Cojocariu, L
Collins, P
Colombo, T
Comerma-Montells, A
Contu, A
Cooke, N
Coombs, G
Coquereau, S
Corti, G
Sobral, CMC
Couturier, B
Cowan, GA
Craik, DC
Crocombe, A
Cruz Torres, M
Currie, R
Da Silva, CL
Dall'Occo, E
Dalseno, J
D'Ambrosio, C
Danilina, A
D'Argent, P
Davis, A
Francisco, ODA
De Bruyn, K
De Capua, S
De Cian, M
De Miranda, JM
De Paula, L
De Serio, M
De Simone, P
De Vries, JA
Dean, CT
Dean, W
Decamp, D
Del Buono, L
Delaney, B
Dembinski, H-P
Demmer, M
Dendek, A
Denysenko, V
Derkach, D
Deschamps, O
Desse, F
Dettori, F
Dey, B
Di Canto, A
Di Nezza, P
Didenko, S
Dijkstra, H
Dordei, F
Dorigo, M
Dos Reis, AC
Dosil Suarez, A
Douglas, L
Dovbnya, A
Dreimanis, K
Dudek, MW
Dufour, L
Dujany, G
Durante, P
Durham, JM
Dutta, D
Dzhelyadin, R
Dziewiecki, M
Dziurda, A
Dzyuba, A
Easo, S
Egede, U
Egorychev, V
Eidelman, S
Eisenhardt, S
Ekelhof, R
Ek-In, S
Eklund, L
Ely, S
Ene, A
Escher, S
Esen, S
Evans, T
Falabella, A
Fan, J
Farley, N
Farry, S
Fazzini, D
Fo, M
Declara, PF
Fernandez Prieto, A
Ferrari, F
Lopes, LF
Ferreira Rodrigues, F
Sole, SF
Ferro-Luzzi, M
Filippov, S
Fini, RA
Fiorini, M
Firlej, M
Fischer, KM
Fitzpatrick, C
Fiutowski, T
Fleuret, F
Fontana, M
Fontanelli, F
Forty, R
Lima, VF
Sevilla, MF
Frank, M
Frei, C
Friday, DA
Fu, J
Funk, W
Gabriel, E
Gallas Torreira, A
Galli, D
Gallorini, S
Gambetta, S
Gan, Y
Gandelman, M
Gandini, P
Gao, Y
Garcia Martin, LM
Pardinas, JG
Garcia Plana, B
Rosales, FAG
Tico, JG
Garrido, L
Gascon, D
Gaspar, C
Gazzoni, G
Gerick, D
Gersabeck, E
Gersabeck, M
Gershon, T
Gerstel, D
Ghez, P
Gibson, V
Gioventu, A
Girard, OG
Gironell, PG
Giubega, L
Giugliano, C
Gizdov, K
Gligorov, VV
Gobel, C
Golubkov, D
Golutvin, A
Gomes, A
Gorelov, I
Gotti, C
Govorkova, E
Grabowski, JP
Diaz, RG
Grammatico, T
Cardoso, LAG
Grauges, E
Graverini, E
Graziani, G
Grecu, A
Greim, R
Griffith, P
Grillo, L
Gruber, L
Cazon, BRG
Gu, C
Gushchin, E
Guth, A
Guz, Y
Gys, T
Hadavizadeh, T
Hadjivasiliou, C
Haefeli, G
Haen, C
Haines, SC
Hamilton, PM
Han, Q
Han, X
Hancock, TH
Hansmann-Menzemer, S
Harnew, N
Harrison, T
Hart, R
Hasse, C
Hatch, M
He, J
Hecker, M
Heijhoff, K
Heinicke, K
Heister, A
Hennequin, AM
Hennessy, K
Henry, L
Hess, M
Heuel, J
Hicheur, A
Charman, RH
Hill, D
Hilton, M
Hopchev, PH
Hu, J
Hu, W
Huang, W
Huard, ZC
Hulsbergen, W
Humair, T
Hunter, RJ
Hushchyn, M
Hutchcroft, D
Hynds, D
Ibis, P
Idzik, M
Ilten, P
Inglessi, A
Inyakin, A
Ivshin, K
Jacobsson, R
Jakobsen, S
Jalocha, J
Jans, E
Jashal, BK
Jawahery, A
Jevtic, V
Jiang, F
John, M
Johnson, D
Jones, CR
Jost, B
Jurik, N
Kandybei, S
Karacson, M
Kariuki, JM
Karodia, S
Kazeev, N
Kecke, M
Keizer, F
Kelsey, M
Kenzie, M
Ketel, T
Khanji, B
Kharisova, A
Khurewathanakul, C
Kim, KE
Kirn, T
Kirsebom, VS
Klaver, S
Klimaszewski, K
Koliiev, S
Kondybayeva, A
Konoplyannikov, A
Kopciewicz, P
Kopecna, R
Koppenburg, P
Kostiuk, I
Kot, O
Kotriakhova, S
Kozeiha, M
Kravchuk, L
Krawczyk, RD
Kreps, M
Kress, F
Kretzschmar, S
Krokovny, P
Krupa, W
Krzemien, W
Kucewicz, W
Kucharczyk, M
Kudryavtsev, V
Kuindersma, HS
Kunde, GJ
Kuonen, AK
Kvaratskheliya, T
Lacarrere, D
Lafferty, G
Lai, A
Lancierini, D
Lane, JJ
Lanfranchi, G
Langenbruch, C
Latham, T
Lazzari, F
Lazzeroni, C
Le Gac, R
Lefevre, R
Leflat, A
Lemaitre, F
Leroy, O
Lesiak, T
Leverington, B
Li, H
Li, P-R
Li, X
Li, Y
Li, Z
Liang, X
Lindner, R
Lionetto, F
Lisovskyi, V
Liu, G
Liu, X
Loh, D
Loi, A
Lomba Castro, J
Longstaff, I
Lopes, JH
Loustau, G
Lovell, GH
Lucchesi, D
Martinez, ML
Luo, Y
Lupato, A
Luppi, E
Lupton, O
Lusiani, A
Lyu, X
Maccolini, S
Machefert, F
Maciuc, F
Macko, V
Mackowiak, P
Maddrell-Mander, S
Mohan, LRM
Maev, O
Maevskiy, A
Maguire, K
Maisuzenko, D
Majewski, MW
Malde, S
Malecki, B
Malinin, A
Maltsev, T
Malygina, H
Manca, G
Mancinelli, G
Escalero, RM
Manuzzi, D
Marangotto, D
Maratas, J
Marchand, JF
Marconi, U
Mariani, S
Benito, CM
Marinangeli, M
Marino, P
Marks, J
Marshall, PJ
Martellotti, G
Martinazzoli, L
Martinelli, M
Martinez Santos, D
Martinez Vidal, F
Massafferri, A
Materok, M
Matev, R
Mathad, A
Mathe, Z
Matiunin, V
Matteuzzi, C
Mattioli, KR
Mauri, A
Maurice, E
McCann, M
Mcconnell, L
McNab, A
McNulty, R
Mead, J
Meadows, B
Meaux, C
Meinert, N
Melnychuk, D
Meloni, S
Merk, M
Merli, A
Michielin, E
Milanes, DA
Millard, E
Minard, M-N
Mineev, O
Minzoni, L
Mitchell, SE
Mitreska, B
Mitzel, DS
Moedden, A
Mogini, A
Moise, RD
Mombaecher, T
Monroy, IA
Monteil, S
Morandin, M
Morello, G
Morello, MJ
Moron, J
Morris, AB
Morris, AG
Mountain, R
Mu, H
Muheim, F
Mukherjee, M
Mulder, M
Mueller, D
Mueller, J
Mueller, K
Mueller, V
Murphy, CH
Murray, D
Muzzetto, P
Naik, P
Nakada, T
Nandakumar, R
Nandi, A
Nanut, T
Nasteva, I
Needham, M
Neri, N
Neubert, S
Neufeld, N
Newcombe, R
Nguyen, TD
Nguyen-Mau, C
Niel, EM
Nieswand, S
Nikitin, N
Nolte, NS
Oblakowska-Mucha, A
Obraztsov, V
Ogilvy, S
O'Hanlon, DP
Oldeman, R
Onderwater, CJG
Osborn, JD
Ossowska, A
Otalora Goicochea, JM
Ovsiannikova, T
Owen, P
Oyanguren, A
Pais, PR
Pajero, T
Palano, A
Palutan, M
Panshin, G
Papanestis, A
Pappagallo, M
Pappalardo, LL
Parker, W
Parkes, C
Passaleva, G
Pastore, A
Patel, M
Patrignani, C
Pearce, A
Pellegrino, A
Penso, G
Altarelli, MP
Perazzini, S
Pereima, D
Perret, P
Pescatore, L
Petridis, K
Petrolini, A
Petrov, A
Petrucci, S
Petruzzo, M
Pietrzyk, B
Pietrzyk, G
Pikies, M
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Pinzino, J
Pisani, F
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Placinta, V
Playfer, S
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Plo Casasus, M
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Lener, MP
Poliakova, M
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Polyakov, I
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Pomery, GJ
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Promberger, L
Prouve, C
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Qin, J
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Rademacker, JH
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Ramos Pernas, M
Rangel, MS
Ratnikov, F
Raven, G
Salzgeber, MR
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Redi, F
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Remon Alepuz, C
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Renaudin, V
Ricciardi, S
Richards, S
Rinnert, K
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Robert, A
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Rodriguez Lopez, JA
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Roiser, S
Rollings, A
Romanovskiy, V
Romero Lamas, M
Romero Vidal, A
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Rotondo, M
Rudolph, MS
Ruf, T
Ruiz Vidal, J
Ryzka, J
Saborido Silva, JJ
Sagidova, N
Saitta, B
Gras, CS
Sanchez Mayordomo, C
Sanmartin Sedes, B
Santacesaria, R
Santamarina Rios, C
Santimaria, M
Santovetti, E
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Savrina, D
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Schiller, M
Schindler, H
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Schmelzer, T
Schmidt, B
Schneider, O
Schopper, A
Schreiner, HF
Schubiger, M
Schulte, S
Schune, MH
Schwemmer, R
Sciascia, B
Sciubba, A
Sellam, S
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Sergi, A
Serra, N
Serrano, J
Sestini, L
Seuthe, A
Seyfert, P
Shangase, DM
Shapkin, M
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Shekhtman, L
Shevchenko, V
Shmanin, E
Shupperd, JD
Siddi, BG
Coutinho, RS
Silva de Oliveira, L
Simi, G
Simone, S
Skiba, I
Skidmore, N
Skwarnicki, T
Slater, MW
Smeaton, JG
Smith, E
Smith, IT
Smith, M
Soares, M
Soares Lavra, L
Sokoloff, MD
Soler, FJP
Souza De Paula, B
Spaan, B
Norella, ES
Spradlin, P
Stagni, F
Stahl, M
Stahl, S
Stefko, P
Stefkova, S
Steinkamp, O
Stemmle, S
Stenyakin, O
Stepanova, M
Stevens, H
Stocchi, A
Stone, S
Stracka, S
Stramaglia, ME
Straticiuc, M
Straumann, U
Strokov, S
Sun, J
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Swientek, K
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Tellarini, G
Teubert, F
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Tilley, MJ
Tisserand, V
TJampens, S
Tobin, M
Tolk, S
Tomassetti, L
Tonelli, D
Tou, DY
Tournefier, E
Traill, M
Tran, MT
Trisovic, A
Tsaregorodtsev, A
Tuci, G
Tully, A
Tuning, N
Ukleja, A
Usachov, A
Ustyuzhanin, A
Uwer, U
Vagner, A
Vagnoni, V
Valassi, A
Valat, S
Valenti, G
Van Beuzekom, M
Van Hecke, H
Van Herwijnen, E
Van Hulse, CB
Van Tilburg, J
Van Veghel, M
Gomez, RV
Vazquez Regueiro, P
Sierra, CV
Vecchi, S
Velthuis, JJ
Veltri, M
Venkateswaran, A
Vernet, M
Veronesi, M
Vesterinen, M
Barbosa, JVV
Vieira, D
Diaz, MV
Viemann, H
Vilasis-Cardona, X
Vitkovskiy, A
Volkov, V
Vollhardt, A
Vom Bruch, D
Voneki, B
Vorobyev, A
Vorobyev, V
Voropaev, N
Waldi, R
Walsh, J
Wang, J
Wang, M
Wang, Y
Wang, Z
Ward, DR
Wark, HM
Watson, NK
Websdale, D
Weiden, A
Weisser, C
Westhenry, BDC
White, DJ
Whitehead, M
Wiedner, D
Wilkinson, G
Wilkinson, M
Williams, I
Williams, M
Williams, MRJ
Williams, T
Wilson, FF
Winn, M
Wislicki, W
Witek, M
Wormser, G
Wotton, SA
Wu, H
Wyllie, K
Xiang, Z
Xiao, D
Xie, Y
Xing, H
Xu, A
Xu, L
Xu, M
Xu, Q
Xu, Z
Yang, Z
Yao, Y
Yeomans, LE
Yin, H
Yu, J
Yuan, X
Yushchenko, O
Zarebski, KA
Zavertyaev, M
Zdybal, M
Zeng, M
Zhang, D
Zhang, L
Zhang, S
Zhang, WC
Zhang, Y
Zhelezov, A
Zheng, Y
Zhou, X
Zhou, Y
Zhu, X
Zhukov, V
Zonneveld, JB
Zucchelli, S
Item Type: Journal Article
Abstract: The single electron track-reconstruction efficiency is calibrated using a sample corresponding to 1.3 fb−1 of pp collision data recorded with the LHCb detector in 2017. This measurement exploits B+→ J/ψ(e+e−)K+ decays, where one of the electrons is fully reconstructed and paired with the kaon, while the other electron is reconstructed using only the information of the vertex detector. Despite this partial reconstruction, kinematic and geometric constraints allow the B meson mass to be reconstructed and the signal to be well separated from backgrounds. This in turn allows the electron reconstruction efficiency to be measured by matching the partial track segment found in the vertex detector to tracks found by LHCb's regular reconstruction algorithms. The agreement between data and simulation is evaluated, and corrections are derived for simulated electrons in bins of kinematics. These correction factors allow LHCb to measure branching fractions involving single electrons with a systematic uncertainty below 1%.
Issue Date: 22-Nov-2019
Date of Acceptance: 30-Oct-2019
URI: http://hdl.handle.net/10044/1/79903
DOI: 10.1088/1748-0221/14/11/P11023
ISSN: 1748-0221
Publisher: IOP Publishing
Start Page: 1
End Page: 20
Journal / Book Title: Journal of Instrumentation
Volume: 14
Copyright Statement: © 2019 CERN for the benefit of the LHCb collaboration. Published by IOP Publishing Ltd on behalf of Sissa Medialab. Original content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence (http://creativecommons.org/licenses/by/3.0/). Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
Keywords: Science & Technology
Technology
Instruments & Instrumentation
Pattern recognition, cluster finding, calibration and fitting methods
Performance of High Energy Physics Detectors
DECAY
Science & Technology
Technology
Instruments & Instrumentation
Pattern recognition, cluster finding, calibration and fitting methods
Performance of High Energy Physics Detectors
DECAY
hep-ex
hep-ex
02 Physical Sciences
09 Engineering
Nuclear & Particles Physics
Publication Status: Published
Open Access location: https://iopscience.iop.org/article/10.1088/1748-0221/14/11/P11023
Article Number: ARTN P11023
Online Publication Date: 2019-11-22
Appears in Collections:Physics
High Energy Physics