Questions tagged [carrier-particles]

Use for force carrier particles, quanta of characteristic quantum fields, usually gauge fields, such as the quanta of electromagnetic fields (photons), of the electroweak interactions (EW bosons), and of the strong interactions (gluons); elastic forces on on a lattice (phonons); nuclear forces (pions); gravity forces (gravitons), etc. May include conjectural particles from GUTS (like their proton-decay-inducing gauge bosons).

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If gravity turns out to be mediated by exchange particles, would that imply a problem with gravitational fields around a black hole?

In general relativity, gravity is a distortion of spacetime due to mass. Its effects travel (if that's the right word) at the speed of light. In the SM all 3 other known interactions are mediated by ...
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What does it mean for a graviton to have mass?

On wikipedia we can read: Astronomical observations of the kinematics of galaxies, especially the galaxy rotation problem and modified Newtonian dynamics, might point toward gravitons having non-...
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Gravitons from linearized gravity

Linearizing gravity as follows: $$ g_{\mu\nu}=\eta_{\mu\nu}+h_{\mu\nu} $$ Up to this point, everything is a 4x4 matrice. How does one eventually recover a spin-2 particle which, according to https:/...
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Photon as a mediator of electric field

How can a photon (which has momentum) from one electrically charged particle to an oppositely charged particle cause these particles to be pulled toward each other - or how can a magnetic field cause ...
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semiconductors extrinsic and intrinsic carriers concentrations equations

I get why $n \cdot p = n_i^2$ in intrinsic semiconductors, but why is that equation also true in the case of extrinsic semiconductor? Here, $n$ is the charge density of the negatively charged ...
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Gravitons, photons and conservation of momentum

How can gravitons be emitted from a mass to cause an attractive force to another mass? The same question could be asked of attractive e-m forces as well. Don't these violate the conservation of ...
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Layperson can not get his head around Force Carriers

I read all I can but, this is vexing me. It realtes to Quantum-Mechanics, and I believe Quantum Field Theory, and maybe even Quantum Chromodynamics. Before the Higgs the Model was 16 instead of 17 we ...