Data di Pubblicazione:
2022
Abstract:
The spectra measurements of charged hadrons produced in the shower of a parton originating in the same hard scattering with a leptonically decaying Z boson arc reported in lead-lead nuclei (Pb-Pb) and proton-proton (pp) collisions at a nucleon-nucleon center-of-mass energy of 5.02 TeV. Both Pb-Pb and pp data sets are recorded by the CMS experiment at the LHC and correspond to an integrated luminosity of 1.7 nb(-1) and 320 pb(-1), respectively. Hadronic collision data with one reconstructed Z boson candidate with the transverse momentum p(T) > 30 GeV/c are analyzed. The Z boson constrains the initial energy and direction of the associated parton. In heavy ion events, azimuthal angular distributions of charged hadrons with respect to the direction of a Z boson are sensitive to modifications of the in-medium parton shower and medium response. compared to reference data from pp interactions, the results for central Pb-Pb collisions indicate a modification of the angular correlations. The measurements of the fragmentation functions and p(T) spectra of charged particles in Z boson events, which are sensitive to medium modifications of the parton shower longitudinal structure, are also reported. Significant modifications in central Pb-Pb events compared to the pp reference data are also found for these observables.
Tipologia CRIS:
03A-Articolo su Rivista
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; Pitters, F M; 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; Morton, A; Python, Q; Tavernier, S; Van Doninck, W; Van Mulders, P; Beghin, D; Bilin, B; Clerbaux, B; De Lentdecker, G; 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; Gruchala, M; 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; Mondal, K; Prisciandaro, J; 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; Brandao Malbouisson, H; Carvalho, W; Chinellato, J; Coelho, E; Da Costa, E M; Da Silveira, G G; De Jesus Damiao, D; Fonseca De Souza, S; 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; Leggat, D; Liao, H; Liu, Z; Sharma, R; Spiezia, A; Tao, J; Thomas-Wilsker, J; Wang, J; Zhang, H; Zhang, S; Zhao, J; Agapitos, A; Ban, Y; Chen, C; Levin, A; Li, Q; Lu, M; 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; Jaramillo, J; 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; 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; Abdalla, H; Abu Zeid, S; Ellithi Kamel, A; 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; Amendola, C; Besancon, M; Couderc, F; Dejardin, M; Denegri, D; Faure, J L; Ferri, F; Ganjour, S; Givernaud, A; Gras, P; Hamel de Monchenault, G; Jarry, P; Lenzi, B; Locci, E; Malcles, J; Rander, J; Rosowsky, A; Sahin, M Ö; Savoy-Navarro, A; Titov, M; Yu, G B; Ahuja, S; Beaudette, F; Bonanomi, M; Buchot Perraguin, A; Busson, P; Charlot, C; Davignon, O; Diab, B; Falmagne, G; Granier de Cassagnac, R; Hak
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