10. Composite Particles
10.1
Introduction ................................................................................................ 67
10.2
Elementary Particles .................................................................................. 67
10.3 Formation of up quarks and down quarks by collisions ............................ 68
10.4 Characteristics of the composite particles ................................................ .69
10.5 The
Muon .................................................................................................. 69
Mass .......................................................................................................... 71
Decays ........................................................................................................ 71
Magnetic
Moment ........................,............................................................. 72
10.6 The Pion .................................................................................................... 73
Mass .......................................................................................................... 73
Decays ....................................................................................................... 74
10.7 The Neutron. ............................................................................................. 74
Mass. ......................................................................................................... 75
Neutron beta decay .................................................................................... 76
10.8 The
Proton ................................................................................................. 77
Mass .......................................................................................................... 77
10.9
Conclusion ................................................................................................ 78
In this section we will be calculating
the properties of a series of particles, such as the proton, the neutron, the
muon etc. which are formed by the different combinations of electrons and
quarks.
10.1 Introduction
According to the Standard model of
particle physics (SMPP), the electron, the muon and the tau are one-off particles, with the
same charge and spin and which basic differences are:
- The electron is stable whereas the other two particles disintegrate.
- The masses are different.
Likewise, the
associated neutrinos, are one-off particles, with no charge and the same spin,
the only difference is that the mass of each of them is different.
In
order to distinguish them, it is necessary to introduce the concept of Leptonic
number which is kept in the interactions, for instance the beta decay of the
neutron:
n ---> p + e⁻ + 𝛎e
L: 0 = 0 + 1 + 0
|
(10.1)
|
According to the SMPP, the neutron turns
into a proton because the d quark changes its flavor with no apparent reason
and turns into a u quark
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10.9
Conclusion
According to the
standard model, both the muon and the Higgs boson are simple particles and
therefore the lack structure. Nevertheless, the combination of particles
(quarks and electrons) and antiparticles, give rise to composite particles with
all the identic characteristics of the ones predicted by the Standard Model.
Are they the Standard Model particles? Or are they other different?
From the electromagnetic
field energy produced by the combination of particles and antiparticles it is
possible to calculate the mass of any particle by using simply paper and pencil
with no need for complex programs that require big computers with a great
calculus power.
Likewise, the decays are extremely
simple with elementary rules.
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