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Momentum measurements for very high momentum charged particles, such as muons from electroweak vector boson decays, are particularly susceptible to charge-dependent curvature biases that arise from misalignments of tracking detectors. Low momentum charged particles used in alignment procedures have limited sensitivity to coherent displacements of such detectors, and therefore are unable to fully constrain these misalignments to the precision necessary for studies of electroweak physics. Additional approaches are therefore required to understand and correct for these effects. In this paper the curvature biases present at the LHCb detector are studied using the pseudomass method in proton-proton collision data recorded at centre of mass energy root s = 13 TeV during 2016, 2017 and 2018. The biases are determined using Z -> mu(+)mu(-) decays in intervals defined by the data-taking period, magnet polarity and muon direction. Correcting for these biases, which are typically at the 10(-4) GeV-1 level, improves the Z -> mu(+)mu(-) mass resolution by roughly 18% and eliminates several pathological trends in the kinematic-dependence of the mean dimuon invariant mass. (LHCb Collaboration)
Curvature-bias corrections using a pseudomass method / R. Aaij, A.S.W.A.. - In: JOURNAL OF INSTRUMENTATION. - ISSN 1748-0221. - 19:03(2024 Apr), pp. P03010.1-P03010.22. [10.1088/1748-0221/19/03/p03010]
Curvature-bias corrections using a pseudomass method
Aaij, R.;Abdelmotteleb, A. S. W.;Abellan Beteta, C.;Abudinén, F.;Ackernley, T.;Adeva, B.;Adinolfi, M.;Adlarson, P.;Agapopoulou, C.;Aidala, C. A.;Ajaltouni, Z.;Akar, S.;Akiba, K.;Albicocco, P.;Albrecht, J.;Alessio, F.;Alexander, M.;Alfonso Albero, A.;Aliouche, Z.;Alvarez Cartelle, P.;Amalric, R.;Amato, S.;Amey, J. L.;Amhis, Y.;An, L.;Anderlini, L.;Andersson, M.;Andreianov, A.;Andreola, P.;Andreotti, M.;Andreou, D.;Anelli, A.;Ao, D.;Archilli, F.;Argenton, M.;Arguedas Cuendis, S.;Artamonov, A.;Artuso, M.;Aslanides, E.;Atzeni, M.;Audurier, B.;Bacher, D.;Bachiller Perea, I.;Bachmann, S.;Bachmayer, M.;Back, J. J.;Baladron Rodriguez, P.;Balagura, V.;Baldini, W.;Baptista de Souza Leite, J.;Barbetti, M.;Barbosa, I. R.;Barlow, R. J.;Barsuk, S.;Barter, W.;Bartolini, M.;Bartz, J.;Baryshnikov, F.;Basels, J. M.;Bassi, G.;Batsukh, B.;Battig, A.;Bay, A.;Beck, A.;Becker, M.;Bedeschi, F.;Bediaga, I. B.;Beiter, A.;Belin, S.;Bellee, V.;Belous, K.;Belov, I.;Belyaev, I.;Benane, G.;Bencivenni, G.;Ben-Haim, E.;Berezhnoy, A.;Bernet, R.;Bernet Andres, S.;Bertella, C.;Bertolin, A.;Betancourt, C.;Betti, F.;Bex, J.;Bezshyiko, Ia.;Bhom, J.;Bieker, M. S.;Biesuz, N. V.;Billoir, P.;Biolchini, A.;Birch, M.;Bishop, F. C. R.;Bitadze, A.;Bizzeti, A.;Blago, M. P.;Blake, T.;Blanc, F.;Blank, J. E.;Blusk, S.;Bobulska, D.;Bocharnikov, V.;Boelhauve, J. A.;Boente Garcia, O.;Boettcher, T.;Bohare, A.;Boldyrev, A.;Bolognani, C. S.;Bolzonella, R.;Bondar, N.;Borgato, F.;Borghi, S.;Borsato, M.;Borsuk, J. T.;Bouchiba, S. A.;Bowcock, T. J. V.;Boyer, A.;Bozzi, C.;Bradley, M. J.;Brea Rodriguez, A.;Breer, N.;Brodzicka, J.;Brossa Gonzalo, A.;Brown, J.;Brundu, D.;Buonaura, A.;Buonincontri, L.;Burke, A. T.;Burr, C.;Bursche, A.;Butkevich, A.;Butter, J. S.;Buytaert, J.;Byczynski, W.;Cadeddu, S.;Cai, H.;Calabrese, R.;Calefice, L.;Cali, S.;Calvi, M.;Calvo Gomez, M.;Cambon Bouzas, J.;Campana, P.;Campora Perez, D. H.;Campoverde Quezada, A. F.;Capelli, S.;Capriotti, L.;Caravaca-Mora, R.;Carbone, A.;Carcedo Salgado, L.;Cardinale, R.;Cardini, A.;Carniti, P.;Carus, L.;Casais Vidal, A.;Caspary, R.;Casse, G.;Castro Godinez, J.;Cattaneo, M.;Cavallero, G.;Cavallini, V.;Celani, S.;Cerasoli, J.;Cervenkov, D.;S. Cesare;Chadwick, A. J.;Chahrour, I.;Charles, M.;Charpentier, Ph.;Chavez Barajas, C. A.;Chefdeville, M.;Chen, C.;Chen, S.;Chen, Z.;Chernov, A.;Chernyshenko, S.;Chobanova, V.;Cholak, S.;Chrzaszcz, M.;Chubykin, A.;Chulikov, V.;Ciambrone, P.;Cicala, M. F.;Cid Vidal, X.;Ciezarek, G.;Cifra, P.;Clarke, P. E. L.;Clemencic, M.;Cliff, H. V.;Closier, J.;Cobbledick, J. L.;Cocha Toapaxi, C.;Coco, V.;Cogan, J.;Cogneras, E.;Cojocariu, L.;Collins, P.;Colombo, T.;Comerma-Montells, A.;Congedo, L.;Contu, A.;Cooke, N.;Corredoira, I.;Correia, A.;Corti, G.;Cottee Meldrum, J. J.;Couturier, B.;Craik, D. C.;Cruz Torres, M.;Curras Rivera, E.;Currie, R.;Da Silva, C. L.;Dadabaev, S.;Dai, L.;Dai, X.;Dall'Occo, E.;Dalseno, J.;D'Ambrosio, C.;Daniel, J.;Danilina, A.;d'Argent, P.;Davidson, A.;Davies, J. E.;Davis, A.;De Aguiar Francisco, O.;De Angelis, C.;de Boer, J.;De Bruyn, K.;De Capua, S.;De Cian, M.;De Freitas Carneiro Da Graca, U.;De Lucia, E.;De Miranda, J. M.;De Paula, L.;De Serio, M.;De Simone, D.;De Simone, P.;De Vellis, F.;de Vries, J. A.;Debernardis, F.;Decamp, D.;Dedu, V.;Del Buono, L.;Delaney, B.;Dembinski, H. -P.;Deng, J.;Denysenko, V.;Deschamps, O.;Dettori, F.;Dey, B.;Di Nezza, P.;Diachkov, I.;Didenko, S.;Ding, S.;Dobishuk, V.;Docheva, A. D.;Dolmatov, A.;Dong, C.;Donohoe, A. M.;Dordei, F.;dos Reis, A. C.;Douglas, L.;Downes, A. G.;Duan, W.;Duda, P.;Dudek, M. W.;Dufour, L.;Duk, V.;Durante, P.;Duras, M. M.;Durham, J. M.;Dziurda, A.;Dzyuba, A.;Easo, S.;Eckstein, E.;Egede, U.;Egorychev, A.;Egorychev, V.;Eirea Orro, C.;Eisenhardt, S.;Ejopu, E.;Ek-In, S.;Eklund, L.;Elashri, M.;Ellbracht, J.;Ely, S.;Ene, A.;Epple, E.;Escher, S.;Eschle, J.;Esen, S.;Evans, T.;Fabiano, F.;Falcao, L. N.;Fan, Y.;Fang, B.;Fantini, L.;Faria, M.;Farmer, K.;Fazzini, D.;Felkowski, L.;Feng, M.;Feo, M.;Fernandez Gomez, M.;Fernez, A. D.;Ferrari, F.;Ferreira Rodrigues, F.;Ferreres Sole, S.;Ferrillo, M.;Ferro-Luzzi, M.;Filippov, S.;Fini, R. A.;Fiorini, M.;Fischer, K. M.;Fitzgerald, D. S.;Fitzpatrick, C.;Fleuret, F.;Fontana, M.;Foreman, L. F.;Forty, R.;Foulds-Holt, D.;Franco Sevilla, M.;Frank, M.;Franzoso, E.;Frau, G.;Frei, C.;Friday, D. A.;Frontini, L.;Fu, J.;Fuehring, Q.;Fujii, Y.;Fulghesu, T.;Gabriel, E.;Galati, G.;Galati, M. D.;Gallas Torreira, A.;Galli, D.;Gambetta, S.;Gandelman, M.;Gandini, P.;Gao, H.;Gao, R.;Gao, Y.;Gao, Y.;Gao, Y.;Garau, M.;Garcia Martin, L. M.;Garcia Moreno, P.;García Pardiñas, J.;Garcia Plana, B.;Garg, K. G.;Garrido, L.;Gaspar, C.;Geertsema, R. E.;Gerken, L. L.;Gersabeck, E.;Gersabeck, M.;Gershon, T.;Ghorbanimoghaddam, Z.;Giambastiani, L.;Giasemis, F. I.;Gibson, V.;Giemza, H. K.;Gilman, A. L.;Giovannetti, M.;Gioventù, A.;Gironella Gironell, P.;Giugliano, C.;Giza, M. A.;Gkougkousis, E. L.;Glaser, F. C.;Gligorov, V. V.;Göbel, C.;Golobardes, E.;Golubkov, D.;Golutvin, A.;Gomes, A.;Gomez Fernandez, S.;Goncalves Abrantes, F.;Goncerz, M.;Gong, G.;Gooding, J. A.;Gorelov, I. V.;Gotti, C.;Grabowski, J. P.;Granado Cardoso, L. A.;Graugés, E.;Graverini, E.;Grazette, L.;Graziani, G.;Grecu, A. T.;Greeven, L. M.;Grieser, N. A.;Grillo, L.;Gromov, S.;Gu, C.;Guarise, M.;Guittiere, M.;Guliaeva, V.;Günther, P. A.;Guseinov, A. -K.;Gushchin, E.;Guz, Y.;Gys, T.;Habermann, K.;Hadavizadeh, T.;Hadjivasiliou, C.;Haefeli, G.;Haen, C.;Haimberger, J.;Hajheidari, M.;Halvorsen, M. M.;Hamilton, P. M.;Hammerich, J.;Han, Q.;Han, X.;Hansmann-Menzemer, S.;Hao, L.;Harnew, N.;Harrison, T.;Hartmann, M.;He, J.;Heijhoff, K.;Hemmer, F.;Henderson, C.;Henderson, R. D. L.;Hennequin, A. M.;Hennessy, K.;Henry, L.;Herd, J.;Herrero Gascon, P.;Heuel, J.;Hicheur, A.;Hijano Mendizabal, G.;Hill, D.;Hollitt, S. E.;Horswill, J.;Hou, R.;Hou, Y.;Howarth, N.;Hu, J.;Hu, J.;Hu, W.;Hu, X.;Huang, W.;Hulsbergen, W.;Hunter, R. J.;Hushchyn, M.;Hutchcroft, D.;Ilin, D.;Ilten, P.;Inglessi, A.;Iniukhin, A.;Ishteev, A.;Ivshin, K.;Jacobsson, R.;Jage, H.;Jaimes Elles, S. J.;Jakobsen, S.;Jans, E.;Jashal, B. K.;Jawahery, A.;Jevtic, V.;Jiang, E.;Jiang, X.;Jiang, Y.;Jiang, Y. J.;John, M.;Johnson, D.;Jones, C. R.;Jones, T. P.;Joshi, S.;Jost, B.;Jurik, N.;Juszczak, I.;Kaminaris, D.;Kandybei, S.;Kang, Y.;Karacson, M.;Karpenkov, D.;Karpov, M.;Kauniskangas, A. M.;Kautz, J. W.;Keizer, F.;Keller, D. M.;Kenzie, M.;Ketel, T.;Khanji, B.;Kharisova, A.;Kholodenko, S.;Khreich, G.;Kirn, T.;Kirsebom, V. S.;Kitouni, O.;Klaver, S.;Kleijne, N.;Klimaszewski, K.;Kmiec, M. R.;Koliiev, S.;Kolk, L.;Konoplyannikov, A.;Kopciewicz, P.;Koppenburg, P.;Korolev, M.;Kostiuk, I.;Kot, O.;Kotriakhova, S.;Kozachuk, A.;Kravchenko, P.;Kravchuk, L.;Kreps, M.;Kretzschmar, S.;Krokovny, P.;Krupa, W.;Krzemien, W.;Kubat, J.;Kubis, S.;Kucewicz, W.;Kucharczyk, M.;Kudryavtsev, V.;Kulikova, E.;Kupsc, A.;Kutsenko, B. K.;Lacarrere, D.;Lai, A.;Lampis, A.;Lancierini, D.;Landesa Gomez, C.;Lane, J. J.;Lane, R.;Langenbruch, C.;Langer, J.;Lantwin, O.;Latham, T.;Lazzari, F.;Lazzeroni, C.;Le Gac, R.;Lee, S. H.;Lefèvre, R.;Leflat, A.;Legotin, S.;Lehuraux, M.;Leroy, O.;Lesiak, T.;Leverington, B.;Li, A.;Li, H.;Li, K.;Li, L.;Li, P.;Li, P. -R.;Li, S.;Li, T.;Li, T.;Li, Y.;Li, Y.;Li, Z.;Lian, Z.;Liang, X.;Lin, C.;Lin, T.;Lindner, R.;Lisovskyi, V.;Litvinov, R.;Liu, F. L.;Liu, G.;Liu, K.;Liu, Q.;Liu, S.;Liu, Y.;Liu, Y.;Liu, Y. L.;Lobo Salvia, A.;Loi, A.;Lomba Castro, J.;Long, T.;Lopes, J. H.;Lopez Huertas, A.;López Soliño, S.;Lovell, G. H.;Lucarelli, C.;Lucchesi, D.;Luchuk, S.;Lucio Martinez, M.;Lukashenko, V.;Luo, Y.;Lupato, A.;Luppi, E.;Lynch, K.;Lyu, X. -R.;Ma, G. M.;Ma, R.;Maccolini, S.;Machefert, F.;Maciuc, F.;Mack, B. M.;Mackay, I.;Mackey, L. M.;Madhan Mohan, L. R.;Madurai, M. M.;Maevskiy, A.;Magdalinski, D.;Maisuzenko, D.;Majewski, M. W.;Malczewski, J. J.;Malde, S.;Malecki, B.;Malentacca, L.;Malinin, A.;Maltsev, T.;Manca, G.;Mancinelli, G.;C. Mancuso;Manera Escalero, R.;Manuzzi, D.;D. Marangotto;Marchand, J. F.;Marchevski, R.;Marconi, U.;Mariani, S.;Marin Benito, C.;Marks, J.;Marshall, A. M.;Marshall, P. J.;Martelli, G.;Martellotti, G.;Martinazzoli, L.;Martinelli, M.;Martinez Santos, D.;Martinez Vidal, F.;Massafferri, A.;Materok, M.;Matev, R.;Mathad, A.;Matiunin, V.;Matteuzzi, C.;Mattioli, K. R.;Mauri, A.;Maurice, E.;Mauricio, J.;Mayencourt, P.;Mazurek, M.;McCann, M.;Mcconnell, L.;McGrath, T. H.;McHugh, N. T.;McNab, A.;McNulty, R.;Meadows, B.;Meier, G.;Melnychuk, D.;Merk, M.;A. Merli;Meyer Garcia, L.;Miao, D.;Miao, H.;Mikhasenko, M.;Milanes, D. A.;Minotti, A.;Minucci, E.;Miralles, T.;Mitchell, S. E.;Mitreska, B.;Mitzel, D. S.;Modak, A.;Mödden, A.;Mohammed, R. A.;Moise, R. D.;Mokhnenko, S.;Mombächer, T.;Monk, M.;Monroy, I. A.;Monteil, S.;Morcillo Gomez, A.;Morello, G.;Morello, M. J.;Morgenthaler, M. P.;Morris, A. B.;Morris, A. G.;Mountain, R.;Mu, H.;Mu, Z. M.;Muhammad, E.;Muheim, F.;Mulder, M.;Müller, K.;Mũnoz-Rojas, F.;Murta, R.;Naik, P.;Nakada, T.;Nandakumar, R.;Nanut, T.;Nasteva, I.;Needham, M.;N. Neri;Neubert, S.;Neufeld, N.;Neustroev, P.;Newcombe, R.;Nicolini, J.;Nicotra, D.;Niel, E. M.;Nikitin, N.;Nogga, P.;Nolte, N. S.;Normand, C.;Novoa Fernandez, J.;Nowak, G.;Nunez, C.;Nur, H. N.;Oblakowska-Mucha, A.;Obraztsov, V.;Oeser, T.;Okamura, S.;Oldeman, R.;Oliva, F.;Olocco, M.;Onderwater, C. J. G.;O'Neil, R. H.;Otalora Goicochea, J. M.;Ovsiannikova, T.;Owen, P.;Oyanguren, A.;Ozcelik, O.;Padeken, K. O.;Pagare, B.;Pais, P. R.;Pajero, T.;Palano, A.;Palutan, M.;Panshin, G.;Paolucci, L.;Papanestis, A.;Pappagallo, M.;Pappalardo, L. L.;Pappenheimer, C.;Parkes, C.;Passalacqua, B.;Passaleva, G.;Passaro, D.;Pastore, A.;Patel, M.;Patoc, J.;Patrignani, C.;Pawley, C. J.;Pellegrino, A.;Pepe Altarelli, M.;Perazzini, S.;Pereima, D.;Pereiro Castro, A.;Perret, P.;Perro, A.;Petridis, K.;Petrolini, A.;Petrucci, S.;Pfaller, J. P.;Pham, H.;Pica, L.;Piccini, M.;Pietrzyk, B.;Pietrzyk, G.;Pinci, D.;Pisani, F.;Pizzichemi, M.;Placinta, V.;Plo Casasus, M.;Polci, F.;Poli Lener, M.;Poluektov, A.;Polukhina, N.;Polyakov, I.;Polycarpo, E.;Ponce, S.;Popov, D.;Poslavskii, S.;Prasanth, K.;Prouve, C.;Pugatch, V.;Punzi, G.;Qian, W.;Qin, N.;Qu, S.;Quagliani, R.;Rabadan Trejo, R. I.;Rademacker, J. H.;Rama, M.;Ramírez García, M.;Ramos Pernas, M.;Rangel, M. S.;Ratnikov, F.;Raven, G.;Rebollo De Miguel, M.;Redi, F.;Reich, J.;Reiss, F.;Ren, Z.;Resmi, P. K.;Ribatti, R.;Ricart, G. R.;Riccardi, D.;Ricciardi, S.;Richardson, K.;Richardson-Slipper, M.;Rinnert, K.;Robbe, P.;Robertson, G.;Rodrigues, E.;Rodriguez Fernandez, E.;Rodriguez Lopez, J. A.;Rodriguez Rodriguez, E.;Rogovskiy, A.;Rolf, D. L.;Rollings, A.;Roloff, P.;Romanovskiy, V.;Romero Lamas, M.;Romero Vidal, A.;Romolini, G.;Ronchetti, F.;Rotondo, M.;Roy, S. R.;Rudolph, M. S.;Ruf, T.;Ruiz Diaz, M.;Ruiz Fernandez, R. A.;Ruiz Vidal, J.;Ryzhikov, A.;Ryzka, J.;Saborido Silva, J. J.;Sadek, R.;Sagidova, N.;Sahoo, N.;Saitta, B.;Salomoni, M.;Sanchez Gras, C.;Sanderswood, I.;Santacesaria, R.;Santamarina Rios, C.;Santimaria, M.;Santoro, L.;Santovetti, E.;Saputi, A.;Saranin, D.;Sarpis, G.;Sarpis, M.;Sarti, A.;Satriano, C.;Satta, A.;Saur, M.;Savrina, D.;Sazak, H.;Scantlebury Smead, L. G.;Scarabotto, A.;Schael, S.;Scherl, S.;Schertz, A. M.;Schiller, M.;Schindler, H.;Schmelling, M.;Schmidt, B.;Schmitt, S.;Schmitz, H.;Schneider, O.;Schopper, A.;Schulte, N.;Schulte, S.;Schune, M. H.;Schwemmer, R.;Schwering, G.;Sciascia, B.;Sciuccati, A.;Sellam, S.;Semennikov, A.;Senger, T.;Senghi Soares, M.;Sergi, A.;Serra, N.;Sestini, L.;Seuthe, A.;Shang, Y.;Shangase, D. M.;Shapkin, M.;Sharma, R. S.;Shchemerov, I.;Shchutska, L.;Shears, T.;Shekhtman, L.;Shen, Z.;Sheng, S.;Shevchenko, V.;Shi, B.;Shields, E. B.;Shimizu, Y.;Shmanin, E.;Shorkin, R.;Shupperd, J. D.;Silva Coutinho, R.;Simi, G.;Simone, S.;Skidmore, N.;Skuza, R.;Skwarnicki, T.;Slater, M. W.;Smallwood, J. C.;Smith, E.;Smith, K.;Smith, M.;Snoch, A.;Soares Lavra, L.;Sokoloff, M. D.;Soler, F. J. P.;Solomin, A.;Solovev, A.;Solovyev, I.;Song, R.;Song, Y.;Song, Y.;Song, Y. S.;Souza De Almeida, F. L.;Souza De Paula, B.;Spadaro Norella, E.;Spedicato, E.;Speer, J. G.;Spiridenkov, E.;Spradlin, P.;Sriskaran, V.;Stagni, F.;Stahl, M.;Stahl, S.;Stanislaus, S.
;Stein, E. N.;Steinkamp, O.;Stenyakin, O.;Stevens, H.;Strekalina, D.;Su, Y.;Suljik, F.;Sun, J.;Sun, L.;Sun, Y.;Sutcliffe, W.;Swallow, P. N.;Swystun, F.;Szabelski, A.;Szumlak, T.;Szymanski, M.;Tan, Y.;Taneja, S.;Tat, M. D.;Terentev, A.;Terzuoli, F.;Teubert, F.;Thomas, E.;Thompson, D. J. D.;Tilquin, H.;Tisserand, V.;T'Jampens, S.;Tobin, M.;Tomassetti, L.;G. Tonani;Tong, X.;Torres Machado, D.;Toscano, L.;Tou, D. Y.;Trippl, C.;Tuci, G.;Tuning, N.;Uecker, L. H.;Ukleja, A.;Unverzagt, D. J.;Ursov, E.;Usachov, A.;Ustyuzhanin, A.;Uwer, U.;Vagnoni, V.;Valassi, A.;Valenti, G.;Valls Canudas, N.;Van Hecke, H.;van Herwijnen, E.;Van Hulse, C. B.;Van Laak, R.;van Veghel, M.;Vazquez Gomez, R.;Vazquez Regueiro, P.;Vázquez Sierra, C.;Vecchi, S.;Velthuis, J. J.;Veltri, M.;Venkateswaran, A.;Vesterinen, M.;Vieites Diaz, M.;Vilasis-Cardona, X.;Vilella Figueras, E.;Villa, A.;Vincent, P.;Volle, F. C.;vom Bruch, D.;Vorobyev, V.;Voropaev, N.;Vos, K.;Vouters, G.;Vrahas, C.;Walsh, J.;Walton, E. J.;Wan, G.;Wang, C.;Wang, G.;Wang, J.;Wang, J.;Wang, J.;Wang, J.;Wang, M.;Wang, N. W.;Wang, R.;Wang, X.;Wang, X. W.;Wang, Y.;Z. Wang;Wang, Z.;Wang, Z.;Ward, J. A.;Waterlaat, M.;Watson, N. K.;Websdale, D.;Wei, Y.;Westhenry, B. D. C.;White, D. J.;Whitehead, M.;Wiederhold, A. R.;Wiedner, D.;Wilkinson, G.;Wilkinson, M. K.;Williams, M.;Williams, M. R. J.;Williams, R.;Wilson, F. F.;Wislicki, W.;Witek, M.;Witola, L.;Wong, C. P.;Wormser, G.;Wotton, S. A.;Wu, H.;Wu, J.;Wu, Y.;Wyllie, K.;Xian, S.;Xiang, Z.;Xie, Y.;Xu, A.;Xu, J.;Xu, L.;Xu, L.;Xu, M.;Xu, Z.;Xu, Z.;Xu, Z.;Yang, D.;Yang, S.;Yang, X.;Yang, Y.;Yang, Z.;Yang, Z.;Yeroshenko, V.;Yeung, H.;Yin, H.;Yu, C. Y.;Yu, J.;Yuan, X.;Zaffaroni, E.;Zavertyaev, M.;Zdybal, M.;Zeng, M.;Zhang, C.;Zhang, D.;Zhang, J.;Zhang, L.;Zhang, S.;Zhang, S.;Zhang, Y.;Zhang, Y. Z.;Zhao, Y.;Zharkova, A.;Zhelezov, A.;Zheng, X. Z.;Zheng, Y.;Zhou, T.;Zhou, X.;Zhou, Y.;Zhovkovska, V.;Zhu, L. Z.;Zhu, X.;Zhu, X.;Zhukov, V.;Zhuo, J.;Zou, Q.;Zuliani, D.;Zunica, G.
2024
Abstract
Momentum measurements for very high momentum charged particles, such as muons from electroweak vector boson decays, are particularly susceptible to charge-dependent curvature biases that arise from misalignments of tracking detectors. Low momentum charged particles used in alignment procedures have limited sensitivity to coherent displacements of such detectors, and therefore are unable to fully constrain these misalignments to the precision necessary for studies of electroweak physics. Additional approaches are therefore required to understand and correct for these effects. In this paper the curvature biases present at the LHCb detector are studied using the pseudomass method in proton-proton collision data recorded at centre of mass energy root s = 13 TeV during 2016, 2017 and 2018. The biases are determined using Z -> mu(+)mu(-) decays in intervals defined by the data-taking period, magnet polarity and muon direction. Correcting for these biases, which are typically at the 10(-4) GeV-1 level, improves the Z -> mu(+)mu(-) mass resolution by roughly 18% and eliminates several pathological trends in the kinematic-dependence of the mean dimuon invariant mass. (LHCb Collaboration)
Analysis and statistical methods; Detector alignment and calibration methods (lasers, sources, particle-beams); Large detector-systems performance; Performance of High Energy Physics Detectors;
Settore PHYS-01/A - Fisica sperimentale delle interazioni fondamentali e applicazioni
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/1108751
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simulazione ASN
Il report seguente simula gli indicatori relativi alla propria produzione scientifica in relazione alle soglie ASN 2023-2025 del proprio SC/SSD. Si ricorda che il superamento dei valori soglia (almeno 2 su 3) è requisito necessario ma non sufficiente al conseguimento dell'abilitazione. La simulazione si basa sui dati IRIS e sugli indicatori bibliometrici alla data indicata e non tiene conto di eventuali periodi di congedo obbligatorio, che in sede di domanda ASN danno diritto a incrementi percentuali dei valori. La simulazione può differire dall'esito di un’eventuale domanda ASN sia per errori di catalogazione e/o dati mancanti in IRIS, sia per la variabilità dei dati bibliometrici nel tempo. Si consideri che Anvur calcola i valori degli indicatori all'ultima data utile per la presentazione delle domande.
