How many subatomic particles are known, and what is the theory of origin of the spin of each particle?

Answer 1

Spin ultimately comes from writing the equations of quantum mechanics in a relativistically invariant form. This was done by Dirac for spin 1/2 charged particles, but a similar proceedure works for other spins. The spin of a particle corresponds to a particular representation of the Lorentz group. The requirement that the basic equations of physics are Lorentz invariant then determines the types of interactions that the particles can have (and hence the identities we assign to them).

The number of subatomic particles is actually quite large, although the number of *fundamental* particles is much lower. Many subatomic particles are resonance states and are not fundamentally different from lower energy states in composition.

Answer 2

There are three basic components of the atoms which are as follows; The nucleous which comprises the neutrons and the Protons and the revolving orbits which comprise tthe electrons.

These are called atoms or mass chemical structures. These are listed in a Table called the Periodic table of element. Mendelev a Physisit developped it.
The reason they spin its due to radiaton they absorb .The spin maintains an equiligrium. However, not all spins are the same neverthe less the variation is minimal. Atoms are reasonably stable . If it was not so nothing would maintain a shape.

The Physics which describes the composition of these components imminate from Synchrotron which broke them to piece and then the piece were named.
The Number of these pieces have so many names that its mind boggling. However they are only pieces and cannot be put together again. They dissipate as energy into space.Hence it does not really matter have many particles have been named . and most of us dont really care.

Theoretically All mass structures ar made of the same basic matter.Hence The whole general theory is basically simple.

The alphabeth soup of particles which physics is trying to describe became very complicated and tedious.

Chemists still work with the same reactions using the Help of the Periodic table of Elements.

Answer 3

Many! check the standard model

SubatomicParticle; FundamentalParticle; CompositeParticle; MatterParticle; ForceCarryingParticle; FundamentalMatterParticle; AntimatterParticle; Lepton; Electron; Muon; Tau; Neutrino; ElectronNeutrino; MuonNeutrino; TauNeutrino; Antilepton; Positron; Antimuon; Antitau; AntiNeutrino; AntiElectronNeutrino; AntiMuonNeutrino; AniTauNeutrino; LeptonGeneration; FirstLeptonGeneration; SecondLeptonGeneration; ThirdLeptonGeneration; Quark; UpQuark; CharmQuark; TopQuark; DownQuark; StrangeQuark; BottomQuark; Antiquark; AntiUpQuark; AntiCharmQuark; AntiTopQuark; AntiDownQuark; AntiStrangeQuark; AntiBottomQuark; QuarkGeneration; FirstQuarkGeneration; SecondQuarkGeneration; ThirdQuarkGeneration; MatterGeneration; FirstMatterGeneration; SecondMatterGeneration; ThirdMatterGeneration; Hadron; Baryon; Meson; Proton; Antiproton; Neutron; CarrierParticle; Graviton; Photon; Gluon; W+_Boson; W-_Boson; Z_Boson; Fermion; Boson

Their motion as to where they derive their spin goes unanswered... String theorists are on it now

Answer 4

Believe it or not, there are more than 200 sub-atomic particles (including massless particles).

And as of now, no one has any explanasion about the origin of spin. Like mass and charge, spin is considered a fundamental property of matter particles.

Answer 5

This is the best and most instructive chart by far. Print it out and look at it.

http://particleadventure.org/particleadventure/frameless/chart_print.html

The origin of spin is rooted in quantum mechanics, but can be thought of classically. Spin is a quanta of angular momentum. Since the particles are not points and therefore have a distribution of mass, there will be angular momenta if the particles have any rotational motion whatsoever.

Answer 6

Subatomic debris have been produced from the ability of the vast bang in the process the 1st 3 minutes of the existence of the universe. that's authorized in accordance to Einstein's equation E = mc^2. Cosmologists have found no reason to have self belief that debris powered growth. in actuality, particularly the different, via fact debris are gravitationally attracted to one yet another, and gravity could, and did, decelerate the growth. What powered the growth, no person is acquainted with, yet dark power is a candidate. Atheists do no longer unavoidably understand something approximately this, or the different, subject via fact atheism isn't a physique of know-how or a concept gadget.

Answer 7

There are too many fundamental particles to list here - see particleadventre.org for more.

And as for your first answer, the origin of spin is perfectly well understood. It arises from the inclusion of special relativity in the Schroedinger wave equation, first carried out by Dirac (hence it is called the Dirac equation).

Answer 8

33 particles.

Answer 9

A list of these, and their basic properties, now takes up fifty pages in the Handbook of Chemistry and Physics. I yearn for the good old days, when there were just three!

Answer 10

We have gone beyond that I believe into the weird world of String Theory and multi-dimensions. It gives me a headache just to think about it all.......