Particle Physics - FSU Physics Department
Particle Physics - FSU Physics Department
Particle Physics - FSU Physics Department
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Nuclear force – field quantum<br />
photon carries the electromagnetic force.<br />
Analogy: postulate particle as carrier of nuclear<br />
force (Hideki Yukawa, 1935) with mass intermediate<br />
between the electron and the proton<br />
This particle also to be responsible for beta-decay.<br />
potential energy between the nucleon field quanta<br />
has the form<br />
U<br />
2<br />
g ⎛ R<br />
− exp⎜<br />
−<br />
4π<br />
R ⎝ c<br />
/ mc<br />
=<br />
2<br />
⎞<br />
⎟<br />
⎠<br />
m = mass of the exchanged quantum;<br />
from observed range of nuclear force: mass of the<br />
exchanged particle ≈ 200MeV<br />
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