@Article{LHCbCollaborationAaij_etal2021,
author="LHCb Collaboration (Aaij, R. et al
and Henry, L.
and Jashal, B. K.
and Martinez-Vidal, F.
and Oyanguren, A.
and Remon Alepuz, C.
and Ruiz Vidal, J.",
title="First measurement of the CP-violating phase in B-s(0) -> J/Psi (-> e(+) e(-))phi decays",
journal="European Physical Journal C",
year="2021",
publisher="Springer",
volume="81",
number="11",
pages="1026--18pp",
abstract="A flavour-tagged time-dependent angular analysis of B-s(0) -> J/Psi phi decays is presented where the J/Psi meson is reconstructed through its decay to an e(+)e(-) pair. The analysis uses a sample of pp collision data recorded with the LHCb experiment at centre-of-mass energies of 7 and 8TeV, corresponding to an integrated luminosity of 3 fb(-1). The CP-violating phase and lifetime parameters of the B-s(0) s system are measured to be phi(s) = 0.00 +/- 0.28 +/- 0.07 rad, Delta Gamma(s) = 0.115 +/- 0.045 +/- 0.011 ps(-1) and Delta Gamma(s) = 0.608 +/- 0.018 +/- 0.012 ps(-1) where the first uncertainty is statistical and the second systematic. This is the first time that CP-violating parameters are measured in the B-s(0) -> J/Psi phi decay with an e+e- pair in the final state. The results are consistent with previous measurements in other channels and with the Standard Model predictions.",
optnote="WOS:000722225100003",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=5033), last updated on Wed, 14 Dec 2022 10:39:29 +0000",
issn="1434-6044",
doi="10.1140/epjc/s10052-021-09711-7",
opturl="https://arxiv.org/abs/2105.14738",
opturl="https://doi.org/10.1140/epjc/s10052-021-09711-7",
language="English"
}