Measurement of the <i>B<sub>s</sub></i><SUP>0</SUP> → <i>J/Ψη</i> lifetime



Aaij, R, Adeva, B, Adinolfi, M, Ajaltouni, Z, Akar, S, Albrecht, J, Alessio, F, Alexander, M, Ali, S, Alkhazov, G
et al (show 747 more authors) (2016) Measurement of the <i>B<sub>s</sub></i><SUP>0</SUP> → <i>J/Ψη</i> lifetime. PHYSICS LETTERS B, 762. pp. 484-492.

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Abstract

Using a data set corresponding to an integrated luminosity of $3 fb^{-1}$, collected by the LHCb experiment in $pp$ collisions at centre-of-mass energies of 7 and 8 TeV, the effective lifetime in the $B^0_s \rightarrow J/\psi \eta$ decay mode, $\tau_{\textrm{eff}}$, is measured to be $\tau_{\textrm{eff}} = 1.479 \pm 0.034~\textrm{(stat)} \pm 0.011 ~\textrm{(syst)}$ ps. Assuming $CP$ conservation, $\tau_{\textrm{eff}}$ corresponds to the lifetime of the light $B_s^0$ mass eigenstate. This is the first measurement of the effective lifetime in this decay mode.

Item Type: Article
Additional Information: All figures and tables, along with any supplementary material and additional information, are available at https://lhcbproject.web.cern.ch/lhcbproject/Publications/LHCbProjectPublic/LHCb-PAPER-2016-017.html
Uncontrolled Keywords: hep-ex, hep-ex
Depositing User: Symplectic Admin
Date Deposited: 26 Jul 2016 15:48
Last Modified: 12 Oct 2023 03:47
DOI: 10.1016/j.physletb.2016.10.006
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3002550