HISKP Colloquium
Discovery and study of the first double-charm tetraquark
by
→
Europe/Berlin
Nußallee 14-16/0.023 (HISKP) - Lecture Hall (HISKP)
Description
Conventional hadronic matter incorporates baryons and mesons made of three quarks and quark-antiquark pairs, respectively.
Hints for the exotic hadrons kept appearing since the discovery of unusual properties of X(3872) in 2003, as the charged charmonium-like states in 2013, and pentaquarks in 2015.
In the talk, I will discuss a new landmark discovery: an observation of the genuinely novel class of hadrons, a doubly charmed tetraquark,
consisting of two charm quarks, an anti-u, and anti-d quark using data collected by the LHCb experiment at the Large Hadron Collider.
Details of the analysis and aspects of a few theoretical calculations anticipating the discovery for several decades will be reported.