The mesons they are particles composed by the combination of a quark and an antiquark
. The quarks have an intrinsic property called flavor (Scientific American, 1986).
Mesons are subatomic particles composed of one quark and one antiquark
, bound together by strong interactions.
The quarkonia with a heavy quark and antiquark
and their interaction are well described by Schrodinger's equation.
If a paired quark and antiquark
come into contact, they annihilate each other and the flux tube linking them disappears as well.
Previous work found differences between matter and antimatter for mesons, which consist of one quark and one antiquark
The pentaquark, made up of four quarks and an antiquark
glued together, proved remarkably elusive to find.
In reality, the strong force is so strong that all color-charged gluons and quarks are bound tightly together into color neutral hadrons, either the mesons which consist of a quark and antiquark
with corresponding color and anticolor, or the baryons, which consist of three quarks of the three colors, which cancel to color-neutrality.
as well, though perhaps I mean what's known as a
He said: "The new particle is made up of a 'beauty quark' and a 'beauty antiquark
', which are then bound together.
In one method, a quark pairs with one of its opposites, an antiquark
, to create a type of matter called a meson.
There were but a few of these quarks, each accompanied by an antiquark
, and by grouping them in different combinations, either two or three at a time, the various hadrons could be accounted for.
Examples of such unstable states can be found in the Standard Model of particle theory including quarks, heavy gauge bosons, leptons heavier than the electron, baryons heavier than the proton, and all mesons made up from a quark and an antiquark
. In nuclear physics the word "radioactivity" is a synonym for the instability of the nuclei which either de-excite emitting a photon, decay via a cluster emission (of which the alpha decay is the most famous and the best studied example of a quantum tunneling process) or undergo the weak transition known as beta decay or inverse beta decay.