Why photon with no charge produces force on charges?

AI Thread Summary
Photons are massless bosons that do not possess charge, despite being produced by charged particles like protons and electrons. They mediate the electromagnetic force by coupling to electric charge, allowing them to interact with charged particles without having charge themselves. The emission of a photon can occur when an electron transitions between energy levels or interacts with matter, but the electron retains its charge throughout these processes. The discussion clarifies that while photons have electric and magnetic components, they themselves are neutral and do not carry charge. Overall, the photon facilitates interactions between charged particles without being charged.
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why photon has no charge though it is produced by either proton and electron, which are both charged??
 
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What is the charge of a proton?
What is the charge of an electron?
What is their total charge?

By the way, is this reaction (p^+ + e^- \to \cdots \gamma) even allowed?
 
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Either ... and ... does not make sense.

Do you mean photon emission by the transition of an atomic electron?
 
As far as I understand particle physics, a photon is a bosun. As such, it transfers a charge from one place to another, but doesn't have one of its own.
 
Danger said:
As far as I understand particle physics, a photon is a bosun. As such, it transfers a charge from one place to another, but doesn't have one of its own.

No, Bosons can have charge, e.g. W+/-.

Bosons are just integer spin particles, they can be massive, massless, charged neutral ...

The photon is a massless boson which couples to electric charge and as such mediates the electromagnetic force.

A photon can be produced by a charged particle if it is energetically favourable, that is if the particle has sufficient energy to emit a real photon, or if a photon can be emitted and absorbed within the time permitted by the uncertainty principle (a virtual photon).

So an electron can emit a photon, for example when traversing matter at high energy and being decelerated by the electric fields of the atoms of the medium, or when changing energy level in an atom, or in annihilation with it's antiparticle etc etc.

It doesn't loose its charge (except in annihilation where all charge is destroyed).
 
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Okay, I knew that a photon can be emitted by an electron reverting to ground state, but I didn't realize that it could take the negative charge with it when it left.
 
Danger said:
Okay, I knew that a photon can be emitted by an electron reverting to ground state, but I didn't realize that it could take the negative charge with it when it left.

No, I didn't say that, at least I didn't mean to. A photon is always neutral, it couples to electric charge i.e. it can only interact with charged particles but it itself is never charged. Never

The electron retains its charge throughout, the photon only gains energy
 
how to interact with charged particles, if photon contain no charge?
as we all know photon have electric and magnetic components.
so, where to the charge in the electric component go to?
 
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