Article ISI SCOPUS
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics  (2025)

Measurement of the W boson decay branching fraction ratio B(W → cq)/B(W → q(q)over-bar′) in proton-proton collisions at √s=13TeV

Hayrapetyan, A; Tumasyan, A; Adam, W; Andrejkovic, J.W ...; Benato, L; Bergauer, T; Chatterjee, S; Damanakis, K...; Dragicevic, M; Hussain, PS; Jeitler, M; Krammer, N; Li, A; Liko, D; Mikulec, I; et. al.

Keywords: charm, cms, SMP

Abstract

The most precise measurement to date of the [Figure presented] boson hadronic decay branching fraction ratio [Figure presented] is presented. The measurement is based on a sample of proton-proton collision data from the CERN LHC collected by the CMS experiment at a center-of-mass energy of 13 TeV in 2016–2018 with an integrated luminosity of 138fb?1. The large cross section of top quark-antiquark production at the LHC offers a sizable high-purity sample of [Figure presented] bosons suitable for this measurement. Events with one charged lepton (electron or muon) and at least four jets, two tagged as bottom quark jets, are analyzed. Charm jets are tagged using the presence of a muon inside the jet. The result, [Figure presented], is consistent with the standard model prediction and is twice as precise as the current world-average value. © 2025 CERN for the benefit of the CMS Collaboration

Más información

Título según WOS: Measurement of the W boson decay branching fraction ratio B(W → cq)/B(W → q(q)over-bar′) in proton-proton collisions at √s=13TeV
Título según SCOPUS: Measurement of the W boson decay branching fraction ratio B(W?cq)/B(W?qq¯?) in proton-proton collisions at s=13TeV
Título de la Revista: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volumen: 868
Editorial: Elsevier B.V.
Fecha de publicación: 2025
Idioma: English
DOI:

10.1016/j.physletb.2025.139754
Notas: ISI, SCOPUS