A highly significant structure is observed in the Λ+cK−π+π+ mass spectrum, where the Λ+c baryon is reconstructed in the decay mode pK−π+. The structure is consistent with originating from a weakly decaying particle, identified as the doubly charmed baryon Ξ++cc. The difference between the masses of the Ξ++cc and Λ+c states is measured to be 1334.94±0.72(stat.)±0.27(syst.) MeV/c2, and the Ξ++cc mass is then determined to be 3621.40±0.72(stat.)±0.27(syst.)±0.14(Λ+c) MeV/c2, where the last uncertainty is due to the limited knowledge of the Λ+c mass. The state is observed in a sample of proton-proton collision data collected by the LHCb experiment at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 1.7 fb−1, an...
The doubly charmed baryon decay Ξ++cc→Ξ+cπ+ is observed for the first time, with a statistical signi...
The doubly charmed baryon decay Ξ++cc→Ξ+cπ+ is observed for the first time, with a statistical signi...
The doubly charmed baryon decay Ξ++cc→Ξ+cπ+ is observed for the first time, with a statistical signi...
A highly significant structure is observed in the \u39bc+K-\u3c0+\u3c0+ mass spectrum, where the \u3...
A highly significant structure is observed in the Λc+K-π+π+ mass spectrum, where the Λc+ baryon is r...
A highly significant structure is observed in the Λc+K-π+π+ mass spectrum, where the Λc+ baryon is r...
A highly significant structure is observed in the Λc+ K− π+ π+ mass spectrum, where the Λc+ baryon i...
A highly significant structure is observed in the Λc+ K− π+ π+ mass spectrum, where the Λc+ baryon i...
A highly significant structure is observed in the Λþ c K−πþπþ mass spectrum, where the Λþ c baryon...
A highly significant structure is observed in the Λþ c K−πþπþ mass spectrum, where the Λþ c baryon...
A highly significant structure is observed in the Λ_{c}^{+}K^{-}π^{+}π^{+} mass spectrum, where the ...
A highly significant structure is observed in the Λc+K-π+π+ mass spectrum, where the Λc+ baryon is r...
A highly significant structure is observed in the $\Lambda^+_c K^-\pi^+\pi^+$ mass spectrum, where t...
A highly significant structure is observed in the Lambda K-+(c)-pi(+)pi(+) mass spectrum, where the ...
The doubly charmed baryon decay Ξcc++→Ξc+π+ is observed for the first time, with a statistical signi...
The doubly charmed baryon decay Ξ++cc→Ξ+cπ+ is observed for the first time, with a statistical signi...
The doubly charmed baryon decay Ξ++cc→Ξ+cπ+ is observed for the first time, with a statistical signi...
The doubly charmed baryon decay Ξ++cc→Ξ+cπ+ is observed for the first time, with a statistical signi...
A highly significant structure is observed in the \u39bc+K-\u3c0+\u3c0+ mass spectrum, where the \u3...
A highly significant structure is observed in the Λc+K-π+π+ mass spectrum, where the Λc+ baryon is r...
A highly significant structure is observed in the Λc+K-π+π+ mass spectrum, where the Λc+ baryon is r...
A highly significant structure is observed in the Λc+ K− π+ π+ mass spectrum, where the Λc+ baryon i...
A highly significant structure is observed in the Λc+ K− π+ π+ mass spectrum, where the Λc+ baryon i...
A highly significant structure is observed in the Λþ c K−πþπþ mass spectrum, where the Λþ c baryon...
A highly significant structure is observed in the Λþ c K−πþπþ mass spectrum, where the Λþ c baryon...
A highly significant structure is observed in the Λ_{c}^{+}K^{-}π^{+}π^{+} mass spectrum, where the ...
A highly significant structure is observed in the Λc+K-π+π+ mass spectrum, where the Λc+ baryon is r...
A highly significant structure is observed in the $\Lambda^+_c K^-\pi^+\pi^+$ mass spectrum, where t...
A highly significant structure is observed in the Lambda K-+(c)-pi(+)pi(+) mass spectrum, where the ...
The doubly charmed baryon decay Ξcc++→Ξc+π+ is observed for the first time, with a statistical signi...
The doubly charmed baryon decay Ξ++cc→Ξ+cπ+ is observed for the first time, with a statistical signi...
The doubly charmed baryon decay Ξ++cc→Ξ+cπ+ is observed for the first time, with a statistical signi...
The doubly charmed baryon decay Ξ++cc→Ξ+cπ+ is observed for the first time, with a statistical signi...