Measurement of the Bs0→J/ψKS0 effective lifetime from proton-proton collisions at s = 13 TeV
Journal of High Energy Physics, cilt.2024, sa.10, 2024 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 2024 Sayı: 10
- Basım Tarihi: 2024
- Doi Numarası: 10.1007/jhep10(2024)247
- Dergi Adı: Journal of High Energy Physics
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, INSPEC, zbMATH, Directory of Open Access Journals, Nature Index
- Anahtar Kelimeler: B Physics, Hadron-Hadron Scattering, Lifetime
- Marmara Üniversitesi Adresli: Hayır
Özet
The effective lifetime of the Bs0 meson in the decay Bs0→J/ψKS0 is measured using data collected during 2016–2018 with the CMS detector in s = 13 TeV proton-proton collisions at the LHC, corresponding to an integrated luminosity of 140 fb−1. The effective lifetime is determined by performing a two-dimensional unbinned maximum likelihood fit to the Bs0 meson invariant mass and proper decay time distributions. The resulting value of 1.59 ± 0.07(stat) ± 0.03(syst) ps is the most precise measurement to date and is in good agreement with the expected value.