Classification | meson |
---|---|
Composition | 2
charm quarks 1 up antiquark 1 down antiquark |
Statistics | bosonic |
Family | hadron |
Mass | 3868±124 MeV/c2 [1] |
Mean lifetime | 1.35+0.31 −0.21×10−21 s [1] |
Electric charge | +1 |
Spin | 1+ [1] |
Isospin | 0 [2] |
The double-charm tetraquark (T+
cc, ccud) is a type of long-lived
tetraquark that was discovered in 2021 in the
LHCb experiment conducted at the
Large Hadron Collider.
[3]
[4]
[2]
[5] It contains four
quarks: two
charm quarks, an
anti-up and an
anti-down quark.
[1]
It has a theoretical computed mass of 3868±124 MeV/c2. [1] The discovery showed an exceptionally strong peak, with 20-sigma significance. [6]
It is hypothesized that studying the behavior of the double-charm tetraquark may play a part in explaining the behavior of the
strong force.
[7] Following the discovery of the T+
cc, researchers now plan experiments to find its double-
beauty counterpart Tbb.
[8] This tetraquark has been found to have a longer lifespan than most known exotic-matter particles.
Classification | meson |
---|---|
Composition | 2
charm quarks 1 up antiquark 1 down antiquark |
Statistics | bosonic |
Family | hadron |
Mass | 3868±124 MeV/c2 [1] |
Mean lifetime | 1.35+0.31 −0.21×10−21 s [1] |
Electric charge | +1 |
Spin | 1+ [1] |
Isospin | 0 [2] |
The double-charm tetraquark (T+
cc, ccud) is a type of long-lived
tetraquark that was discovered in 2021 in the
LHCb experiment conducted at the
Large Hadron Collider.
[3]
[4]
[2]
[5] It contains four
quarks: two
charm quarks, an
anti-up and an
anti-down quark.
[1]
It has a theoretical computed mass of 3868±124 MeV/c2. [1] The discovery showed an exceptionally strong peak, with 20-sigma significance. [6]
It is hypothesized that studying the behavior of the double-charm tetraquark may play a part in explaining the behavior of the
strong force.
[7] Following the discovery of the T+
cc, researchers now plan experiments to find its double-
beauty counterpart Tbb.
[8] This tetraquark has been found to have a longer lifespan than most known exotic-matter particles.