Электронный каталог

Статья

Hayrapetyan, A.
Measurement of the B*0&sub(s) *> J/*qK*0&sub(S) Effective Lifetime from Proton-Proton Collisions at *%s=13 TeV / A.Hayrapetyan, S.Afanasiev, D.Budkouski, I.Golutvin, I.Gorbunov, V.Karjavine, V.Korenkov, N.Krasnikov, A.Lanev, A.Malakhov, V.Matveev, V.Palichik, V.Perelygin, M.Savina, V.Shalaev, S.Shmatov, S.Shulha, V.Smirnov, O.Teryaev, N.Voytishin, B.S.Yuldashev, A.Zarubin, I.Zhizhin, Z.Tsamalaidze, [CMS Collab.] // Journal of High Energy Physics [Electronic resource]. – 2024. – Vol. 2024, No. 10. – P. 247. – URL: https://doi.org/10.1007/JHEP10(2024)247. – Bibliogr.: 55.

The efective lifetime of the B*0&sub(s) meson in the decay B*0&sub(s) → J/ψK*0&sub(S) 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 efective lifetime is determined by performing a two-dimensional unbinned maximum likelihood ft to the B*0&sub(s) 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.



ОИЯИ = ОИЯИ (JINR)2024
Спец.(статьи,препринты) = С 346.2в - Взаимодействие протонов с протонами