Ξcc++ Explained

\Xi _{\rm{cc} }^
Classification:	Hadron Baryon
Statistics:	Fermion
Mass:	3621.4 MeV
Mean Lifetime:	between and

The Xi double-charm baryon, denoted as

\Xi _{\rm{cc} }^, is a Xi baryon composed of two charm quarks and one up quark.

Its discovery by the LHCb Collaboration was announced on 6 July 2017 in Venice, Italy, at the European Physical Society Conference on High Energy Physics.

\Xi _{\rm{cc} }^ is the first baryon discovered with two heavy quarks (charm and/or bottom) and a light quark. Its mass is 3621 MeV, nearly four times that of the proton.^[1]

It was identified when it disintegrated into a

Λ _{\rm{c} }^ baryon and three lighter mesons, K, π and π.

See also

• List of baryons

References

Bibliography

• Web site: en . European Organization for Nuclear Research (CERN) . The LHCb experiment is charmed to announce observation of a new particle with two heavy quarks . 2017-07-08.
• Web site: en . LHCb Collaboration . Observation of the doubly charmed baryon \Xi _{\rm{cc} }^ . pdf . 2017-07-08.
• Web site: fr . Une nouvelle particule pointe son nez au Cern . 2017-07-08.

Notes and References

1. (CERN, European Organization for Nuclear Research 2017)