Search for Wgamma resonances in proton-proton collisions at vs=13 TeV using hadronic decays of Lorentz-boosted W bosons
Articolo
Data di Pubblicazione:
2022
Abstract:
A search for W gamma resonances in the mass range between 0.7 and 6.0 TeV is presented. The W boson is reconstructed via its hadronic decays, with the final-state products forming a single large-radius jet, owing to a high Lorentz boost of the W boson. The search is based on proton-proton collision data at root s = 13 TeV, corresponding to an integrated luminosity of 137 fb(-1), collected with the CMS detector at the LHC in 2016-2018. The W gamma mass spectrum is parameterized with a smoothly falling background function and examined for the presence of resonance-like signals. No significant excess above the predicted background is observed. Model-specific upper limits at 95% confidence level on the product of the cross section and branching fraction to the W gamma channel are set. Limits for narrow resonances and for resonances with an intrinsic width equal to 5% of their mass, for spin-0 and spin-1 hypotheses, range between 0.17 fb at 6.0 TeV and 55 fb at 0.7 TeV. These are the most restrictive limits to date on the existence of such resonances over a large range of probed masses. In specific heavy scalar (vector) triplet benchmark models, narrow resonances with masses between 0.75 (1.15) and 1.40 (1.36) TeV are excluded for a range of model parameters. Model-independent limits on the product of the cross section, signal acceptance, and branching fraction to the W gamma channel are set for minimum W gamma mass thresholds between 1.5 and 8.0 TeV. (c) 2022 The Author(s). Published by Elsevier B.V.
Tipologia CRIS:
1.1 Articolo in rivista
Keywords:
CMS; Wgamma resonances; BSM particles
Elenco autori:
Tumasyan, A; Adam, W; Andrejkovic, Jw; Bergauer, T; Chatterjee, S; Dragicevic, M; Del Valle, Ae; Fruhwirth, R; Jeitler, M; Krammer, N; Lechner, L; Liko, D; Mikulec, I; Pitters, Fm; Schieck, J; Schofbeck, R; Spanring, M; Templ, S; Waltenberger, W; Wulz, Ce; Chekhovsky, V; Litomin, A; Makarenko, V; Darwish, Mr; De Wolf, Ea; Janssen, X; Kello, T; Lelek, A; Sfar, Hr; Van Mechelen, P; Van Putte, S; Van Remortel, N; Blekman, F; Bols, Es; De Clercq, J; Delcourt, M; Lowette, S; Moortgat, S; Morton, A; Muller, D; Sahasransu, Ar; Tavernier, S; Van Doninck, W; Van Mulders, P; Beghin, D; Bilin, B; Clerbaux, B; De Lentdecker, G; Favart, L; Grebenyuk, A; Kalsi, Ak; Lee, K; Mahdavikhorrami, M; Makarenko, I; Moureaux, L; Petre, L; Popov, A; Postiau, N; Starling, E; Thomas, L; Vanden Bemden, M; Vander Velde, C; Vanlaer, P; Vannerom, D; Wezenbeek, L; Cornelis, T; Dobur, D; Gruchala, M; Mestdach, G; Niedziela, M; Roskas, C; Skovpen, K; Tytgat, M; Verbeke, W; Vermassen, B; Vit, M; Bethani, A; Bruno, G; Bury, F; Caputo, C; David, P; Delaere, C; Donertas, Is; Giammanco, A; Lemaitre, V; Mondal, K; Prisciandaro, J; Taliercio, A; Teklishyn, M; Vischia, P; Wertz, S; Wuyckens, S; Alves, Ga; Hensel, C; Moraes, A; Alda, Wl; Ferreira, Mb; Malbouisson, Hb; Carvalho, W; Chinellato, J; Da Costa, Em; Da Silveira, Gg; Damiao, Dd; De Souza, Sf; Figueiredo, Dm; Herrera, Cm; Amarilo, Km; Mundim, L; Nogima, H; Teles, Pr; Rosas, Ljs; Santoro, A; Do Amaral, Sms; Sznajder, A; Thiel, M; De Araujo, Ftd; Pereira, Av; Bernardes, Ca; Calligaris, L; Tomei, Trfp; Gregores, Em; Lemos, Ds; Mercadante, Pg; Novaes, Sf; Padula, Ss; Aleksandrov, A; Antchev, G; Atanasov, I; Hadjiiska, R; Iaydjiev, P; Misheva, M; Rodozov, M; Shopova, M; Sultanov, G; Dimitrov, A; Ivanov, T; Litov, L; Pavlov, B; Petkov, P; Petrov, A; Cheng, T; Fang, W; Guo, Q; Javaid, T; Mittal, M; Wang, H; Yuan, L; Ahmad, M; Bauer, G; Dozen, C; Hu, Z; Martins, J; Wang, Y; Yi, K; Chapon, E; Chen, Gm; Chen, Hs; Chen, M; Kapoor, A; Leggat, D; Liao, H; Liu, Za; Sharma, R; Spiezia, A; Tao, J; Thomas-wilsker, J; Wang, J; Zhang, H; Zhang, S; Zhao, J; Agapitos, A; Ban, Y; Chen, C; Huang, Q; Levin, A; Li, Q; Lu, M; Lyu, X; Mao, Y; Qian, Sj; Wang, D; Wang, Q; Xiao, J; You, Z; Gao, X; Okawa, H; Xiao, M; Avila, C; Cabrera, A; Florez, C; Fraga, J; Sarkar, A; Delgado, Mas; Jaramillo, J; Guisao, Jm; Ramirez, F; Alvarez, Jdr; Gonzalez, Cas; Arbelaez, Nv; Giljanovic, D; Godinovic, N; Lelas, D; Puljak, I; Antunovic, Z; Kovac, M; Sculac, T; Brigljevic, V; Ferencek, D; Majumder, D; Roguljic, M; Starodumov, A; Susa, T; Attikis, A; Erodotou, E; Ioannou, A; Kole, G; Kolosova, M; Konstantinou, S; Mousa, J; Nicolaou, C; Ptochos, F; Razis, Pa; Rykaczewski, H; Saka, H; Finger, M; Finger, M; Kveton, A; Ayala, E; Jarrin, Ec; Abu Zeid, S; Elgammal, S; Salama, E; Mahmoud, Ma; Mohammed, Y; Bhowmik, S; De Oliveira, Aca; Dewanjee, Rk; Ehataht, K; Kadastik, M; Pata, J; Raidal, M; Veelken, C; Eerola, P; Forthomme, L; Kirschenmann, H; Osterberg, K; Voutilainen, M; Brucken, E; Garcia, F; Havukainen, J; Karimaki, V; Kim, Ms; Kinnunen, R; Lampen, T; Lassila-Perini, K; Lehti, S; Linden, T; Lotti, M; Siikonen, H; Tuominen, E; Tuominiemi, J; Luukka, P; Petrow, H; Tuuva, T; Amendola, C; Besancon, M; Couderc, F; Dejardin, M; Denegri, D; Faure, Jl; Ferri, F; Ganjour, S; Givernaud, A; Gras, P; de Monchenault, Gh; Jarry, P; Lenzi, B; Locci, E; Malcles, J; Rander, J; Rosowsky, A; Sahin, Mo; Savoy-Navarro, A; Titov, M; Yu, Gb; Ahuja, S; Beaudette, F; Bonanomi, M; Perraguin, Ab; Busson, P; Charlot, C; Davignon, O; Diab, B; Falmagne, G; Ghosh, S; de Cassagnac, Rg; Hakimi, A; Kucher, I; Lobanov, A; Nguyen, M; Ochando, C; Paganini, P; Rembser, J; Salerno, R; Sauvan, Jb; Sirois, Y; Zabi, A; Zghiche, A; Agram, Jl; Andrea, J; Apparu, D; Bloch, D; Bourgatte, G; Brom, Jm; Chabert, Ec; Collard, C; Darej, D; Fontaine, Jc; Goerlach, U; Grimault, C; Le Bihan, Ac; Van Hove, P; Asilar, E; Beauceron, S; Bernet, C; Boudoul, G; Camen, C; Carle, A; Chanon, N; Contardo, D; Depasse, P;
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