Özet

The large cross section for b quark production at the CERN LHC and the high luminosity of the accelerator provide the possibility to study rare B meson decays. Recently, several experiments have reported the likely presence of structures in the J/ψφ (1020) mass spectrum from B±→ J/ψφ (1020) K±decays [1–7]. A natural extension of these results is to study the ψ (2S) φ (1020) K±and the ψ (2S) φ (1020) mass spectra. As part of that investigation, we report the first observation of the decay B±→ ψ (2S) φ (1020) K±, with ψ (2S)→ μ+ μ− and φ (1020)→ K+K−. We measure the corresponding branching fraction using data collected at the LHC with the CMS detector in proton–proton (pp) collisions at

Anahtar Kelimeler

B physics | CMS | Physics | Rare B decays

Science Direct

Atıf Sayıları
Scopus	3
Google Scholar	6

Observation of the decay B⁺ → ψ(2S)ϕ(1020)K⁺ in pp collisions at s=8TeV

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