Scientists working with the LHCb detector at the Large Hadron Collider have discovered a new particle – the double charmed tetraquark Tcc+.
Physicists have discovered a new particle – a double charmed tetraquark Tcc +. This was reported on the official website of the European Organization for Nuclear Research (CERN).
Today, the LHCb is the smallest of the four main detectors at the LHC collider at the European organization for nuclear research CERN in Geneva. The experiment is carried out to study the asymmetry of matter and antimatter in b-quark interactions.
CERN reports that the Tcc + tetraquark is the only particle known to science that consists of four quarks. The peculiarity of this particle is that two quarks are charmed or c-quarks. At the same time, charmed antiquarks are absent in it.
The C quark or charmed quark is a second generation quark with charge + e. With a mass of 1.25 GeV, it ranks third in mass among quarks. Scientists predicted its appearance back in 1970.
In particle physics, scent is called charm. This is a quantum number that characterizes the type of quark. There are six of them in total. CERN noted that the new tetraquark can be called a long-liver. The fact is that its lifetime is 10 to 500 times longer than that of particles with the same mass.