Measurement of inclusive and differential cross sections for W^+ W^− production in proton-proton collisions at √s = 13.6 TeV
Articolo
Data di Pubblicazione:
2025
Abstract:
Measurements at √s = 13.6 TeV of the opposite-sign W boson pair production cross section in proton-proton collisions are presented. The data used in this study were collected with the CMS detector at the CERN LHC in 2022, and correspond to an integrated luminosity of 34.8 fb^−1. Events are selected by requiring one electron and one muon of opposite charge. A maximum likelihood fit is performed on signal- and background-enriched data categories defined by the flavor and charge of the leptons, the number of jets, and number of jets originating from b quarks. The overall sensitivity is significantly better than that of previous results with a similar integrated luminosity. The improvement comes from a more refined control of experimental uncertainties and an improved fit strategy. An inclusive W+W− production cross section of 125.7±5.6 pb is measured, in agreement with standard model predictions. Cross sections are also reported in a fiducial region close to that of the detector acceptance, both inclusively and differentially, as a function of the jet multiplicity in the event. For the first time in proton-proton collisions, WW events with zero, one, and at least two jets are studied simultaneously and compared with recent theoretical predictions.
Tipologia CRIS:
03A-Articolo su Rivista
Keywords:
CMS; W boson pairs
Elenco autori:
Hayrapetyan, A.; Tumasyan, A.; Adam, W.; Andrejkovic, J.W.; Bergauer, T.; Chatterjee, S.; Damanakis, K.; Dragicevic, M.; Hussain, P.S.; Jeitler, M.; Krammer, N.; Li, A.; Liko, D.; Mikulec, I.; Schieck, J.; Schöfbeck, R.; Schwarz, D.; Sonawane, M.; Waltenberger, W.; Wulz, C.-E.; Janssen, T.; Van Laer, T.; Van Mechelen, P.; Breugelmans, N.; D'Hondt, J.; Dansana, S.; De Moor, A.; Delcourt, M.; Heyen, F.; Lowette, S.; Makarenko, I.; Müller, D.; Tavernier, S.; Tytgat, M.; Van Onsem, G.P.; Van Putte, S.; Vannerom, D.; Bilin, B.; Clerbaux, B.; Das, A.K.; De Lentdecker, G.; Evard, H.; Favart, L.; Gianneios, P.; Jaramillo, J.; Khalilzadeh, A.; Khan, F.A.; Lee, K.; Mahdavikhorrami, M.; Malara, A.; Paredes, S.; Shahzad, M.A.; Thomas, L.; Vanden Bemden, M.; Vander Velde, C.; Vanlaer, P.; De Coen, M.; Dobur, D.; Gokbulut, G.; Hong, Y.; Knolle, J.; Lambrecht, L.; Marckx, D.; Mota Amarilo, K.; Samalan, A.; Skovpen, K.; Van Den Bossche, N.; van der Linden, J.; Wezenbeek, L.; Benecke, A.; Bethani, A.; Bruno, G.; Caputo, C.; De Favereau De Jeneret, J.; Delaere, C.; Donertas, I.S.; Giammanco, A.; Guzel, A.O.; Jain, Sa.; Lemaitre, V.; Lidrych, J.; Mastrapasqua, P.; Tran, T.T.; Wertz, S.; Alves, G.A.; Alves Gallo Pereira, M.; Coelho, E.; Correia Silva, G.; Hensel, C.; Menezes De Oliveira, T.; Mora Herrera, C.; Moraes, A.; Rebello Teles, P.; Soeiro, M.; Vilela Pereira, A.; Aldá Júnior, W.L.; Barroso Ferreira Filho, M.; Brandao Malbouisson, H.; Carvalho, W.; Chinellato, J.; Da Costa, E.M.; Da Silveira, G.G.; De Jesus Damiao, D.; Fonseca De Souza, S.; Gomes De Souza, R.; Macedo, M.; Martins, J.; Mundim, L.; Nogima, H.; Pinheiro, J.P.; Santoro, A.; Sznajder, A.; Thiel, M.; Bernardes, C.A.; Calligaris, L.; Fernandez Perez Tomei, T.R.; Gregores, E.M.; Maietto Silverio, I.; Mercadante, P.G.; Novaes, S.F.; Orzari, B.; Padula, Sandra S.; Aleksandrov, A.; Antchev, G.; Hadjiiska, R.; Iaydjiev, P.; Misheva, M.; Shopova, M.; Sultanov, G.; Dimitrov, A.; Litov, L.; Pavlov, B.; Petkov, P.; Petrov, A.; Shumka, E.; Keshri, S.; Laroze, D.; Thakur, S.; Cheng, T.; Javaid, T.; Yuan, L.; Hu, Z.; Liang, Z.; Liu, J.; Yi, K.; Chen, G.M.; Chen, H.S.; Chen, M.; Iemmi, F.; Jiang, C.H.; Kapoor, A.; Liao, H.; Liu, Z.-A.; Sharma, R.; Song, J.N.; Tao, J.; Wang, C.; Wang, J.; Wang, Z.; Zhang, H.; Zhao, J.; Agapitos, A.; Ban, Y.; Deng, S.; Guo, B.; Jiang, C.; Levin, A.; Li, C.; Li, Q.; Mao, Y.; Qian, S.; Qian, S.J.; Qin, X.; Sun, X.; Wang, D.; Yang, H.; Zhang, L.; Zhao, Y.; Zhou, C.; Yang, S.; You, Z.; Jaffel, K.; Lu, N.; Bauer, G.; Li, B.; Zhang, J.; Gao, X.; Li, Y.; Lin, Z.; Lu, C.; Xiao, M.; Avila, C.; Barbosa Trujillo, D.A.; Cabrera, A.; Florez, C.; Fraga, J.; Reyes Vega, J.A.; Ramirez, F.; Rendón, C.; Rodriguez, M.; Ruales Barbosa, A.A.; Ruiz Alvarez, J.D.; Giljanovic, D.; Godinovic, N.; Lelas, D.; Sculac, A.; Kovac, M.; Petkovic, A.; Sculac, T.; Bargassa, P.; Brigljevic, V.; Chitroda, B.K.; Ferencek, D.; Jakovcic, K.; Mishra, S.; Starodumov, A.; Susa, T.; Attikis, A.; Christoforou, K.; Hadjiagapiou, A.; Leonidou, C.; Mousa, J.; Nicolaou, C.; Paizanos, L.; Ptochos, F.; Razis, P.A.; Rykaczewski, H.; Saka, H.; Stepennov, A.; Finger, M.; Finger, M.; Kveton, A.; Carrera Jarrin, E.; Assran, Y.; El-mahdy, B.; Elgammal, S.; Abdullah Al-Mashad, M.; Mahmoud, M.A.; Ehataht, K.; Kadastik, M.; Lange, T.; Nandan, S.; Nielsen, C.; Pata, J.; Raidal, M.; Tani, L.; Veelken, C.; Kirschenmann, H.; Osterberg, K.; Voutilainen, M.; Bharthuar, S.; Bin Norjoharuddeen, N.; Brücken, E.; Garcia, F.; Inkaew, P.; Kallonen, K.T.S.; Lampén, T.; Lassila-Perini, K.; Lehti, S.; Lindén, T.; Martikainen, L.; Myllymäki, M.; Rantanen, M.m.; Siikonen, H.; Tuominiemi, J.; Luukka, P.; Petrow, H.; Besancon, M.; Couderc, F.; Dejardin, M.; Denegri, D.; Faure, J.L.; Ferri, F.; Ganjour, S.; Gras, P.; Hamel de Monchenault, G.; Kumar, M.; Lohezic, V.; Malcles, J.; Orlandi, F.; Portales, L.; Rosowsky, A.; Sahin, M.Ö.; Savoy-Navarro, A.; Simkina, P.; Titov, M.; Tornago, M.; Be
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