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Results tagged with pair-production
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user 6764
Pair production is the creation of an elementary particle and its antiparticle out of a neutral boson, typically a photon, but sometimes a gluon.
0
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1
answer
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Atom emitts a photon - what is the frequency of the energy of the photon?
Lets say I have an atom of known mass who goes from excited state to the ground state whose energy is $14.4 keV$ lower.
I know that the emitted energy $14.4keV$ got converted into an energy of a phot …
- 2,585
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0
answers
302
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positron / electron annihilation - where is the invariant?
Electron and a positron are headed towards each other with same kinetic energies - observed from center of mass (COM) system. After the colission two photons are emitted and are headed in opposite dir …
- 2,585
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1
answer
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Pair production in complete vacuum
I want to prove that pair production (electron-positron) cannot happen in complete vacuum. This is why I obeyed conservation of energy and got equation:
$$h \nu = m_e c^2 \Bigl[ \gamma(v_1) + \gamma( …
- 2,585
-1
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answer
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2 particles collision - deriving the equation for an energy which can become mass of new par...
Q1:
Lets say a particle with mass $m_1$ and kinetic energy $W_k$ colides with a particle of mass $m_2$ at rest. Can anyone explain why do both particless ($m_1$ and $m_2$) plus an aditionall mass $m$ …
- 2,585
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2 protons collision (both with different kinetic energies) - I don't know what to put in for...
The problem statement:
Two protons with kinetic energies $W_{k1}=4GeV$ and $W_{k2}=2GeV$
colide and form new particles. What is the mass of newly born
particles? There are as many as possible …
- 2,585
4
votes
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Pair production - mathematically?
Allover the web i am only seeing a statement similar to this:
Pair production is not possible in vaccum, 3rd particle is needed so
that conservation of momentum holds.
Well noone out of many …
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