Particle interactions (AQA A-Level Physics): Flashcards

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Particle interactions
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Exchange particle for electromagnetic force

Virtual photon (γ\gamma)

Exchange particle for strong nuclear force

Gluon

Exchange particles for weak nuclear force

W+W^+ and W−W^- bosons

Range of weak nuclear force

About 10−1810^{-18} m

Range of strong nuclear force

Approx. 3×10−153 \times 10^{-15} m

Particles strong nuclear force acts on

Hadrons (particles made of quarks)

Beta-minus decay equation

n→p+e−+νˉen \rightarrow p + e^- + \bar{\nu}_e

Beta-plus decay equation

p→n+e++νep \rightarrow n + e^+ + \nu_e

What exchange particles transfer

Energy and momentum

Electron capture equation

p+e−→n+νep + e^- \rightarrow n + \nu_e

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