@article{10902/32593,
year = {2023},
month = {8},
url = {https://hdl.handle.net/10902/32593},
abstract = {A search for the standard model Higgs boson decaying to a charm quark-antiquark pair, H → c¯c, produced in association with a leptonically decaying V (W or Z) boson is presented. The search is performed with proton-proton collisions at √s = 13 TeV collected by the CMS experiment, corresponding to an integrated luminosity of 138 fb−¹. Novel charm jet identification and analysis methods using machine learning techniques are employed. The analysis is validated by searching for Z → c¯c in VZ events, leading to its first observation at a hadron collider with a significance of 5.7 standard deviations. The observed (expected) upper limit on σ(VH)B(H → c¯c) is 0.94 (0.50 +0.22−0.15)pb at 95% confidence level (C.L.), corresponding to 14 (7.6+3.4−2.3 ) times the standard model prediction. For the Higgs-charm Yukawa coupling modifier, κc, the observed (expected) 95% C.L. interval is 1.1 < |κc| < 5.5 (|κc| < 3.4), the most stringent constraint to date.},
publisher = {American Physical Society},
publisher = {Physical review letters, 2023, 131(6), 061801},
title = {Search for Higgs boson decay to a charm quark-antiquark pair in proton-proton collisions at √s=13 TeV},
author = {Tumasyan, A. and Brochero Cifuentes, Javier Andrés and Cabrillo Bartolomé, José Iban and Calderón Tazón, Alicia and Duarte Campderros, Jorge and Fernández García, Marcos and Fernández Madrazo, Celia and Fernández Manteca, Pedro José and García Alonso, Andrea and Gómez Gramuglio, Gervasio and Lasaosa García, Clara and Martínez Rivero, Celso and Martínez Ruiz del Árbol, Pablo and Matorras Weinig, Francisco and Matorras Cuevas, Pablo and Piedra Gómez, Jonatan and Prieëls, Cedric and Ruiz Jimeno, Alberto and Scodellaro, Luca and Vila Álvarez, Iván  and Vizán García, Jesús Manuel},
}