%0 Journal Article
%T Measurement of the lifetimes of promptly produced Omega(0)(c) and Xi(9)(c) baryons
%A LHCb Collaboration (Aaij, R. et al
%A Jashal, B. K.
%A Martinez-Vidal, F.
%A Oyanguren, A.
%A Remon Alepuz, C.
%A Ruiz Vidal, J.
%J Science Bulletin
%D 2022
%V 67
%N 5
%I Elsevier
%@ 2095-9273
%G English
%F LHCbCollaborationAaij_etal2022
%O WOS:000797041600001
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=5231), last updated on Mon, 30 May 2022 06:49:36 +0000
%X A measurement of the lifetimes of the Omega(0)(c) and Xi(0)(c) baryons is reported using proton-proton collision data at a centre-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 5.4 fb(-1) collected by the LHCb experiment. The Omega(0)(c) and Xi(0)(c) baryons are produced directly from proton interactions and reconstructed in the pK(-)K(-)pi(+) final state. The Omega(0)(c) lifetime is measured to be 276.5 +/- 13.4 +/- 4.4 +/- 0.7 fs, and the Xi(0)(c) lifetime is measured to be 148.0 +/- 2.3 +/- 2.2 +/- 0.2 fs, where the first uncertainty is statistical, the second systematic, and the third due to the uncertainty on the D-0 lifetime. These results confirm previous LHCb measurements based on semileptonic beauty-hadron decays, which disagree with earlier results of a four times shorter Omega(c)0 lifetime, and provide the single most precise measurement of the Omega(0 )(c)lifetime.
%K Charmed baryon
%K Flavour physics
%K QCD
%K Lifetime
%K Charm physics
%K LHCb
%R 10.1016/j.scib.2021.11.022
%U https://arxiv.org/abs/2109.01334
%U https://doi.org/10.1016/j.scib.2021.11.022
%P 479-487