NUK - logo
E-viri
Celotno besedilo
Recenzirano Odprti dostop
  • Measurement of the tt¯ char...
    Samalan, A.; Bruno, G.; Vischia, P.; Alves, G.A.; Fernandez Perez Tomei, T.R.; Petkov, P.; Yi, K.; Fraga, J.; Mejia Guisao, J.; Ferencek, D.; Susa, T.; Mousa, J.; Stepennov, A.; Lange, T.; Raidal, M.; Kinnunen, R.; Savoy-Navarro, A.; Cappati, A.; Granier de Cassagnac, R.; Goerlach, U.; Blancon, B.; Feld, L.; Merschmeyer, M.; Hlushchenko, O.; Zotz, A.; Bhattacharya, S.; Krücker, D.; Savitskyi, M.; Schnake, S.; Wissing, C.; Neukum, M.; Zuo, X.; Bestintzanos, I.; Evangelou, I.; Papadopoulos, I.; Veszpremi, V.; Teyssier, D.; Kaur, A.; De Palma, M.; Elmetenawee, W.; My, S.; Di Mattia, A.; Lucchini, M.T.; Pedrini, D.; Carnevali, F.; Dorigo, T.; Gulmini, M.; Tedeschi, T.; Castaldi, R.; Cavallari, F.; Biino, C.; Yoon, I.; Castaneda Hernandez, A.; Uribe Estrada, C.; Gonzalez Lopez, O.; Calderon, A.; Prieels, C.; Chernyavskaya, N.; Cipriani, M.; Glege, F.; Pantaleo, F.; Sphicas, P.; Wallny, R.; Brzhechko, D.; Heikkilä, J.K.; Wu, H.y.; Kayis Topaksu, A.; Hacisahinoglu, B.; Heath, H.F.; Cooke, C.; Olaiya, E.; Saunders, M.; Yao, Y.; Dutta, V.; An, S.; Schonbeck, N.; Wagner, S.R.; Patterson, J.R.; Ryd, A.; Green, D.; Herwig, T.C.; Uplegger, L.; Mestvirishvili, A.; Nickel, M.; Royon, C.; Kaadze, K.; Lee, Y.-J.; Roland, G.; Claes, D.R.; Fangmeier, C.; Reed, I.; Hay, L.; Goldouzian, R.; Parashar, N.; Decaro, M.; Bose, T.; Kachanov, V.; Litomin, A.; Matveev, V.; Shmatov, S.

    Physics letters. B, 11/2023, Letnik: 846
    Journal Article

    The measurement of the charge asymmetry in top quark pair events with highly Lorentz-boosted top quarks decaying to a single lepton and jets is presented. The analysis is performed using proton-proton collisions at s=13TeV with the CMS detector at the LHC and corresponding to an integrated luminosity of 138 fb−1. The selection is optimized for top quarks produced with large Lorentz boosts, resulting in nonisolated leptons and overlapping jets. The top quark charge asymmetry is measured for events with a tt¯ invariant mass larger than 750 GeV and corrected for detector and acceptance effects using a binned maximum likelihood fit. The measured top quark charge asymmetry of (0.42−0.69+0.64)% is in good agreement with the standard model prediction at next-to-next-to-leading order in quantum chromodynamic perturbation theory with next-to-leading-order electroweak corrections. The result is also presented for two invariant mass ranges, 750–900 and >900GeV.