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  - 2021
DA  - 2021//
TI  - Observation of excited Omega(0)(c) baryons in Omega(-)(b) -> Xi(+)(c) K-pi(-) decays
T2  - Phys. Rev. D
JO  - Physical Review D
SP  - L091102 - 14pp
VL  - 104
IS  - 9
PB  - Amer Physical Soc
AB  - The first observation of the Omega(-)(b) -> Xi(+)(c) K-pi(-) decay is reported using p p collision data at center of mass energies of 7, 8, and 13 TeV collected by the LHCb experiment, corresponding to an integrated luminosity of 9 fb(-1). Four excited Omega(0)(c) baryons are observed in the Xi K-+(c)- mass projection of the Omega(-)(b) -> Xi K-+(c)-pi(-) decays with the significance of each exceeding five standard deviations. They coincide with the states previously observed in prompt pp and e(+)e(-) production. Relative production rates, masses, and natural widths of the states are measured, and a test of spin hypotheses is performed. Moreover, the branching ratio of Omega(-)(b) -> Xi K-+(c)-pi(-) is measured relative to the Omega(-)(b) -> Omega(0)(c)pi(-) decay mode and a precise measurement of the Omega(-)(b) mass of 6044.3 +/- 1.2 +/- 1.1(-0.22)(+0.19) MeV is obtained.
SN  - 2470-0010
UR  - https://arxiv.org/abs/2107.03419
UR  - https://doi.org/10.1103/PhysRevD.104.L091102
DO  - 10.1103/PhysRevD.104.L091102
LA  - English
N1  - WOS:000725005800001
ID  - LHCbCollaborationAaij_etal2021
ER  -