Publications [#386408] of Seog Oh

Papers Published

1. Hayrapetyan, A; Tumasyan, A; Adam, W; Andrejkovic, JW; Bergauer, T; Chatterjee, S; Damanakis, K; Dragicevic, M; Hussain, PS; Jeitler, M; Krammer, N; Li, A; Liko, D; Mikulec, I; Schieck, J; Schöfbeck, R; Schwarz, D; Sonawane, M; Templ, S; Waltenberger, W; Wulz, CE; Darwish, MR; 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, GP; Van Putte, S; Vannerom, D; Bilin, B; Clerbaux, B; Das, AK; De Lentdecker, G; Evard, H; Favart, L; Gianneios, P; Jaramillo, J; Khalilzadeh, A; Khan, FA; Lee, K; Mahdavikhorrami, M; Malara, A; Paredes, S; Shahzad, MA; 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, IS; Giammanco, A; Guzel, AO; Jain, S; Lemaitre, V; Lidrych, J; Mastrapasqua, P; Tran, TT; Wertz, S; Alves, GA; 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, WL; Barroso Ferreira Filho, M; Brandao Malbouisson, H, Measurement of the Higgs boson mass and width using the four-lepton final state in proton-proton collisions at (Formula presented), Physical Review D, vol. 111 no. 9 (May, 2025) [doi]
   (last updated on 2026/01/16)

   Abstract:
   A measurement of the Higgs boson mass and width via its decay to two (Formula presented) bosons is presented. Proton-proton collision data collected by the CMS experiment, corresponding to an integrated luminosity of (Formula presented) at a center-of-mass energy of 13 TeV, is used. The invariant mass distribution of four leptons in the on-shell Higgs boson decay is used to measure its mass and constrain its width. This yields the most precise single measurement of the Higgs boson mass to date, (Formula presented), and an upper limit on the width (Formula presented) at 95% confidence level. A combination of the on- and off-shell Higgs boson production decaying to four leptons is used to determine the Higgs boson width, assuming that no new virtual particles affect the production, a premise that is tested by adding new heavy particles in the gluon fusion loop model. This result is combined with a previous CMS analysis of the off-shell Higgs boson production with decay to two leptons and two neutrinos, giving a measured Higgs boson width of (Formula presented), in agreement with the standard model prediction of 4.1 MeV. The strength of the off-shell Higgs boson production is also reported. The scenario of no off-shell Higgs boson production is excluded at a confidence level corresponding to 3.8 standard deviations.