Publications [#386420] 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, WL; Barroso Ferreira Filho, M; Brandao Malbouisson, H, Measurement of the polarizations of prompt and non-prompt J/Ψ and Ψ(2S) mesons produced in pp collisions at √s = 13TeV, Physics Letters Section B Nuclear Elementary Particle and High Energy Physics, vol. 858 (November, 2024) [doi]
   (last updated on 2026/01/20)

   Abstract:
   The polarizations of prompt and non-prompt [Formula presented] and ψ(2S) mesons are measured in proton-proton collisions at s=13 TeV, using data samples collected by the CMS experiment in 2017 and 2018, corresponding to a total integrated luminosity of 103.3fb⁻¹. Based on the analysis of the dimuon decay angular distributions in the helicity frame, the polar anisotropy, λϑ, is measured as a function of the transverse momentum, pT, of the charmonium states, in the 25–120 and 20–100 GeV ranges for the [Formula presented] and ψ(2S), respectively. The non-prompt polarizations agree with predictions based on the hypothesis that, for pT≳25GeV, the non-prompt [Formula presented] and ψ(2S) are predominantly produced in two-body B meson decays. The prompt results clearly exclude strong transverse polarizations, even for pT exceeding 30 times the [Formula presented] mass, where λϑ tends to an asymptotic value around 0.3. Taken together with previous measurements, by CMS and LHCb at s=7 TeV, the prompt polarizations show a significant variation with pT, at low pT.