Baryons
All particles can be classified into two broad categories: leptons and hadrons. The main difference between the two is whether they interact through the strong interaction. Hadrons are particles that interact through all four fundamental interactions of nature, which include, strong, electromagnetic, weak, and gravitational interactions. Hadrons, the strongly interacting particles, can be further subdivided into two classes based on their internal composition: mesons and baryons. Originally, mesons and baryons were classified according to their masses. Baryons were heavier than mesons, and both were heavier than leptons. Today mesons and baryons are distinguished by their internal structure. Baryons have masses greater than the proton mass. All hadrons are composed of two or three fundamental particles, which came to be known as quarks. A quark is always combined with one or two other quarks. According to the original model proposed by Murray Gell-Mann and George Zweig in 1963, there were three types of quarks indicated by the symbols u, d, and s. These were given the arbitrary names up, down, and sideways (now referred to as strange). Associated with each quark is an anti-quark, which are the antimatter equival
In addition to these force-carrying particles, the standard model includes two families of subatomic particles that build up matter and that have spins of one-half unit. Physicists call this principle the law of conservation of baryons. Baryons also include hyperons, which are created in particle accelerators. The Standard Model is the combination of two theories of particle physics into a single framework to describe all interactions of subatomic particles, except those due to gravity. The total charge of the proton is +e. These six quarks species are paired with their "flavors": up and down, top and bottom, and charm and strange. From the properties of quarks, it follows that all baryons made in this way have integral electric charge, half integer spin and baryon number +1 (quarks have baryon number +1/3). The demand that a baryon must have three quarks, one RED, one GREEN, and one BLUE, makes the baryon have an overall "white" color. The quarks neutron and lambda have the same electric charge and spin. Later evidence allowed theorists to propose the existence of several more quarks: charm(c), top (t), and bottom (b). Scientists have discovered four kinds of so-called long-lived hyperons, which last longer than one-thousandth of one-billionth of a second. The neutron has charges of +2/3e, -1/3e, and -1/3e. They named these hyperons lambda, sigma, xi, and omega.
Common topics in this essay:
Standard Model,
George Zweig,
GREEN BLUE,
,
Uncertainty Principle,
standard model,
quarks leptons,
mass hadron,
subatomic particles,
electric charge,
mesons baryons,
RED GREEN,
red green blue,
baryons protons,
red green,
green blue,
atoms protons,
-1/3e total charge,
|