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- W4385966052 abstract "The first observation of the singly Cabibbo-suppressed $Omega_{c}^{0}toOmega^{-}K^{+}$ and $Omega_{c}^{0}toXi^{-}pi^{+}$ decays is reported, using proton-proton collision data at a centre-of-mass energy of $13,{rm TeV}$, corresponding to an integrated luminosity of $5.4,{rm fb}^{-1}$, collected with the LHCb detector between 2016 and 2018. The branching fraction ratios are measured to be $frac{mathcal{B}(Omega_{c}^{0}toOmega^{-}K^{+})}{mathcal{B}(Omega_{c}^{0}toOmega^{-}pi^{+})}=0.0608pm0.0051({rm stat})pm 0.0040({rm syst})$, $frac{mathcal{B}(Omega_{c}^{0}toXi^{-}pi^{+})}{mathcal{B}(Omega_{c}^{0}toOmega^{-}pi^{+})}=0.1581pm0.0087({rm stat})pm0.0043({rm syst})pm0.0016({rm ext})$. In addition, using the $Omega_{c}^{0}toOmega^{-}pi^{+}$ decay channel, the $Omega_{c}^{0}$ baryon mass is measured to be $M(Omega_{c}^{0})=2695.28pm0.07({rm stat})pm0.27({rm syst})pm0.30({rm ext}),{rm MeV}/c^{2}$, improving the precision of the previous world average by a factor of four." @default.
- W4385966052 created "2023-08-18" @default.
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