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Measurement of differential tt¯ production cross sections using top quarks at large transverse momenta in pp collisions at √s=13 TeV

Articolo
Data di Pubblicazione:
2021
Citazione:
(2021). Measurement of differential tt¯ production cross sections using top quarks at large transverse momenta in pp collisions at √s=13 TeV [journal article - articolo]. In PHYSICAL REVIEW D. Retrieved from http://hdl.handle.net/10446/180318
Abstract:
A measurement is reported of differential top quark pair (t¯t) production cross sections, where top quarks are produced at large transverse momenta. The data collected with the CMS detector at the LHC are from pp collisions at a center-of-mass energy of 13 TeV corresponding to an integrated luminosity of 35.9 fb−1. The measurement uses events where at least one top quark decays as t→Wb→q¯q′b and is reconstructed as a large-radius jet with transverse momentum in excess of 400 GeV. The second top quark is required to decay either in a similar way or leptonically, as inferred from a reconstructed electron or muon, a bottom quark jet, and missing transverse momentum due to the undetected neutrino. The cross section is extracted as a function of kinematic variables of individual top quarks or of the t¯t system. The results are presented at the particle level, within a region of phase space close to that of the experimental acceptance, and at the parton level and are compared to various theoretical models. In both decay channels, the observed absolute cross sections are significantly lower than the predictions from theory, while the normalized differential measurements are well described.
Tipologia CRIS:
1.1.01 Articoli/Saggi in rivista - Journal Articles/Essays
Elenco autori:
Sirunyan, A.  M.; Tumasyan, A.; Adam, W.; Ambrogi, F.; Bergauer, T.; Dragicevic, M.; Erö, J.; Escalante Del Valle, A.; Frühwirth, R.; Jeitler, M.; Krammer, N.; Lechner, L.; Liko, D.; Madlener, T.; Mikulec, I.; Rad, N.; Schieck, J.; Schöfbeck, R.; Spanring, M.; Templ, S.; Waltenberger, W.; Wulz, C. -E.; Zarucki, M.; Chekhovsky, V.; Litomin, A.; Makarenko, V.; Suarez Gonzalez, J.; Darwish, M.  R.; De Wolf, E.  A.; Di Croce, D.; Janssen, X.; Kello, T.; Lelek, A.; Pieters, M.; Rejeb Sfar, H.; Van Haevermaet, H.; Van Mechelen, P.; Van Putte, S.; Van Remortel, N.; Blekman, F.; Bols, E.  S.; Chhibra, S.  S.; D’Hondt, J.; De Clercq, J.; Lontkovskyi, D.; Lowette, S.; Marchesini, I.; Moortgat, S.; Python, Q.; Tavernier, S.; Van Doninck, W.; Van Mulders, P.; Beghin, D.; Bilin, B.; Clerbaux, B.; De Lentdecker, G.; Delannoy, H.; Dorney, B.; Favart, L.; Grebenyuk, A.; Kalsi, A.  K.; Makarenko, I.; Moureaux, L.; Pétré, L.; Popov, A.; Postiau, N.; Starling, E.; Thomas, L.; Vander Velde, C.; Vanlaer, P.; Vannerom, D.; Wezenbeek, L.; Cornelis, T.; Dobur, D.; Khvastunov, I.; Niedziela, M.; Roskas, C.; Skovpen, K.; Tytgat, M.; Verbeke, W.; Vermassen, B.; Vit, M.; Bruno, G.; Bury, F.; Caputo, C.; David, P.; Delaere, C.; Delcourt, M.; Donertas, I.  S.; Giammanco, A.; Lemaitre, V.; Prisciandaro, J.; Saggio, A.; Taliercio, A.; Teklishyn, M.; Vischia, P.; Wuyckens, S.; Zobec, J.; Alves, G.  A.; Correia Silva, G.; Hensel, C.; Moraes, A.; Aldá Júnior, W.  L.; Belchior Batista Das Chagas, E.; Carvalho, W.; Chinellato, J.; Coelho, E.; Da Costa, E.  M.; Da Silveira, G.  G.; De Jesus Damiao, D.; Fonseca De Souza, S.; Malbouisson, H.; Martins, J.; Matos Figueiredo, D.; Medina Jaime, M.; Melo De Almeida, M.; Mora Herrera, C.; Mundim, L.; Nogima, H.; Rebello Teles, P.; Sanchez Rosas, L.  J.; Santoro, A.; Silva Do Amaral, S.  M.; Sznajder, A.; Thiel, M.; Tonelli Manganote, E.  J.; Torres Da Silva De Araujo, F.; Vilela Pereira, A.; Bernardes, C.  A.; Calligaris, L.; Tomei, T. R. Fernandez Perez; Gregores, E.  M.; Lemos, D.  S.; Mercadante, P.  G.; Novaes, S.  F.; Padula, Sandra S.; Aleksandrov, A.; Antchev, G.; Atanasov, I.; Hadjiiska, R.; Iaydjiev, P.; Misheva, M.; Rodozov, M.; Shopova, M.; Sultanov, G.; Bonchev, M.; Dimitrov, A.; Ivanov, T.; Litov, L.; Pavlov, B.; Petkov, P.; Petrov, A.; Fang, W.; Guo, Q.; Wang, H.; Yuan, L.; Ahmad, M.; Hu, Z.; Wang, Y.; Chapon, E.; Chen, G.  M.; Chen, H.  S.; Chen, M.; Jiang, C.  H.; Leggat, D.; Liao, H.; Liu, Z.; Sharma, R.; Spiezia, A.; Tao, J.; Wang, J.; Zhang, H.; Zhang, S.; Zhao, J.; Agapitos, A.; Ban, Y.; Chen, C.; Chen, G.; Levin, A.; Li, J.; Li, L.; Li, Q.; Lyu, X.; Mao, Y.; Qian, S.  J.; Wang, D.; Wang, Q.; Xiao, J.; You, Z.; Gao, X.; Xiao, M.; Avila, C.; Cabrera, A.; Florez, C.; Fraga, J.; Sarkar, A.; Segura Delgado, M.  A.; Mejia Guisao, J.; Ramirez, F.; Ruiz Alvarez, J.  D.; Salazar González, C.  A.; Vanegas Arbelaez, N.; Giljanovic, D.; Godinovic, N.; Lelas, D.; Puljak, I.; Sculac, T.; Antunovic, Z.; Kovac, M.; Brigljevic, V.; Ferencek, D.; Majumder, D.; Mesic, B.; Roguljic, M.; Starodumov, A.; Susa, T.; Ather, M.  W.; Attikis, A.; Erodotou, E.; Ioannou, A.; Kole, G.; Kolosova, M.; Konstantinou, S.; Mavromanolakis, G.; Mousa, J.; Nicolaou, C.; Ptochos, F.; Razis, P.  A.; Rykaczewski, H.; Saka, H.; Tsiakkouri, D.; Finger, M.; Finger, M.; Kveton, A.; Tomsa, J.; Ayala, E.; Carrera Jarrin, E.; Abdelalim, A.  A.; Abu Zeid, S.; Khalil, S.; Mahmoud, M.  A.; Mohammed, Y.; Bhowmik, S.; Carvalho Antunes De Oliveira, A.; Dewanjee, R.  K.; Ehataht, K.; Kadastik, M.; Raidal, M.; Veelken, C.; Eerola, P.; Forthomme, L.; Kirschenmann, H.; Osterberg, K.; Voutilainen, M.; Brücken, E.; Garcia, F.; Havukainen, J.; Karimäki, V.; Kim, M.  S.; Kinnunen, R.; Lampén, T.; Lassila-Perini, K.; Laurila, S.; Lehti, S.; Lindén, T.; Siikonen, H.; Tuominen, E.; Tuominiemi, J.; Luukka, P.; Tuuva, T.; Besancon, M.; Couderc, F.; Dejardin, M.; Denegri
Autori di Ateneo:
RE Valerio
Link alla scheda completa:
https://aisberg.unibg.it/handle/10446/180318
Link al Full Text:
https://aisberg.unibg.it/retrieve/handle/10446/180318/411838/PhysRevD.103.052008.pdf
Pubblicato in:
PHYSICAL REVIEW D
Journal
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