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Journal Article

Observation of the doubly charmed baryon decay Xi(++)(cc) -> Xi(c)'(+)pi(+)


Schmelling,  M.
Division Prof. Dr. James A. Hinton, MPI for Nuclear Physics, Max Planck Society;

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The LHCb Collaboration, Aaij, R., Abdelmotteleb, A. S. W., Abellan Beteta, C., Abudinen, F., Ackernley, T., et al. (2022). Observation of the doubly charmed baryon decay Xi(++)(cc) -> Xi(c)'(+)pi(+). Journal of high energy physics: JHEP, 2022(5): 038. doi:10.1007/JHEP05(2022)038.

Cite as: https://hdl.handle.net/21.11116/0000-000A-EBB9-D
The Xi(++)(cc) -> Xi('+)(c)pi(+) 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 Xi(++)(cc) -> Xi('+)(c)pi(+) decay is reconstructed partially, where the photon from the Xi('+)(c) -> Xi(+)(c)gamma decay is not reconstructed and the pK(-)pi(+) final state of the Sc+ baryon is employed. The Xi(++)(cc) -> Xi('+)(c)pi(+) branching fraction relative to that of the Xi(++)(cc) -> Xi('+)(c)pi(+) decay is measured to be 1.41 +/- 0.17 +/- 0.10, where the first uncertainty is statistical and the second systematic.