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Observation of the doubly charmed baryon decay Ξ cc + + → Ξ c ′ + π +

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Aaij, R. 
Abdelmotteleb, A. S. W. 
Abellán Beteta, C. 
Abudinén, F. 
Ackernley, T. 


Abstract: The Ξcc++→Ξc′+π+ decay is observed using proton-proton collisions collected by the LHCb experiment at a centre-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 5.4 fb−1. The Ξcc++→Ξc′+π+ decay is reconstructed partially, where the photon from the Ξc′+→Ξc+γ decay is not reconstructed and the pK−π+ final state of the Ξc+ baryon is employed. The Ξcc++→Ξc′+π+branching fraction relative to that of the Ξcc++→Ξc+π+ decay is measured to be 1.41 ± 0.17 ± 0.10, where the first uncertainty is statistical and the second systematic.



Regular Article - Experimental Physics, Charm Physics, Flavour Physics, Hadron-Hadron Scattering, Proton-Proton Scattering

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Springer Berlin Heidelberg