Standard model of particle physics Flashcards
What are the four fundamental interactions described in the standard model of particle physics?
Gravitation, electromagnetic, strong nuclear, weak nuclear.
What quantum is believed to mediate the gravitational interaction, and what is its proposed mass?
The graviton (spin 2 boson) is thought to mediate the gravitational interaction, and it’s proposed to have a mass of zero.
What particles mediate the weak nuclear interaction, and what is their spin?
What particles mediate the weak nuclear interaction, and what is their spin?
Which particle mediates the electromagnetic interaction, and what is its spin and mass?
The electromagnetic interaction is mediated by the photon, a spin 1 boson with zero mass.
What property distinguishes quarks from other particles, and what is the consequence of this property?
Quarks carry a property called color, which leads to color confinement, limiting the strong nuclear force to short-range interactions.
What are the two types of particles classified in the standard model, and what is the key difference between them?
The two types are bosons and fermions. Fermions have half-integer spin and obey the Pauli Exclusion Principle, while bosons have integer spin and do not obey the Pauli Exclusion Principle.
