TY  - JOUR
AU  - LHCb Collaboration (Aaij, R. et al
AU  - Jashal, B. K.
AU  - Martinez-Vidal, F.
AU  - Oyanguren, A.
AU  - Remon Alepuz, C.
AU  - Ruiz Vidal, J.
PY  - 2022
DA  - 2022//
TI  - Measurement of the lifetimes of promptly produced Omega(0)(c) and Xi(9)(c) baryons
T2  - Sci. Bull.
JO  - Science Bulletin
SP  - 479
EP  - 487
VL  - 67
IS  - 5
PB  - Elsevier
KW  - Charmed baryon
KW  - Flavour physics
KW  - QCD
KW  - Lifetime
KW  - Charm physics
KW  - LHCb
AB  - 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.
SN  - 2095-9273
UR  - https://arxiv.org/abs/2109.01334
UR  - https://doi.org/10.1016/j.scib.2021.11.022
DO  - 10.1016/j.scib.2021.11.022
LA  - English
N1  - WOS:000797041600001
ID  - LHCbCollaborationAaij_etal2022
ER  -