elementary Particles

- J. Chadwick opens neutron

- is the micro-object, which can not be split into

(angular momentum of its own)

(1/2 h, 3/2 h ....)
For example, an electron, proton,

Bosons - particles with integer spin (0, h, 2 h ....)
For example: the photon, pion

be located not more than two fermions with opposite spins.
Wolfgang

the positron - electron antiparticles.

physicist Carl Anderson.
In 1947. antipion was discovered.
In 1955 -

in which they are converted into photons or other particles.
The

hypothesized that hadrons consist of quarks.
In 1969, the experimental confirmation

strange quark
t truth quark
В beauty

n = (u; d; d)
Mesons consist of a quark and

Quark structure of hadrons

and green. All hadrons not color.
Since there are 6

fermions.
Thus, the universe around us is composed of 48