# metadata.dc.description.abstract[].value
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 B0 s → J/ψη decay mode, τeff, is measured to be τeff = 1.479 ± 0.034 (stat) ± 0.011 (syst) p

# metadata.dc.source[].value
Articles publicats en revistes (Física Quàntica i Astrofísica)

# metadata.dc.subject.other[].value
Large Hadron Collider (France and Switzerland)