Difference between revisions of "Thermodynamical Properties of Elementary Particles"
From Universe in Problems
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| + | <pre style="width:50%"> | ||
| + | {| class="wide" | ||
| + | In the mid-forties G.A.~Gamov proposed the idea\\ of the "hot" | ||
| + | origin of the World. Therefore thermodynamics \\ was introduced into | ||
| + | cosmology, and nuclear physics too. \\Before him the science of | ||
| + | the evolution of Universe \\contained only dynamics and geometry of the World.\\ | ||
| + | ''A.D.~Chernin.'' | ||
| + | </pre> | ||
Revision as of 13:48, 1 October 2012
{| class="wide"
In the mid-forties G.A.~Gamov proposed the idea\\ of the "hot"
origin of the World. Therefore thermodynamics \\ was introduced into
cosmology, and nuclear physics too. \\Before him the science of
the evolution of Universe \\contained only dynamics and geometry of the World.\\
''A.D.~Chernin.''
| Particles | Mass | Number of states | $g$ (particles and anti-particles) | |
|---|---|---|---|---|
| spin | color | |||
| Photon ($\gamma$) | 0 | 2 | 1 | 2 |
| $W^+,W^-$ | $80.4\, GeV$ | 3 | 1 | 6 |
| $Z$ | $91.2\,GeV$ | 3 | 1 | 3 |
| Gluon ($g$) | 0 | 2 | 8 | 16 |
| Higgs boson | $>114\, GeV$ | 1 | 1 | 1 |
| Bosons | 28 | |||
| $u,/,\bar{u}$ | $3\, MeV$ | 2 | 3 | 12 |
| $d,/,\bar{d}$ | $6\, MeV$ | 2 | 3 | 12 |
| $s,/,\bar{s}$ | $100\,MeV$ | 2 | 3 | 12 |
| $c,/,\bar{c}$ | $1.2\,GeV$ | 2 | 3 | 12 |
| $b,/,\bar{b}$ | $4.2\, GeV$ | 2 | 3 | 12 |
| $t,/,\bar{t}$ | $175\,GeV$ | 2 | 3 | 12 |
| $e^+,\,e^-$ | $0.511\, MeV $ | 2 | 1 | 4 |
| $\mu^+,\,\mu^-$ | $105.7\,MeV$ | 2 | 1 | 4 |
| $\tau^+,\,\tau^-$ | $1.777\, GeV$ | 2 | 1 | 4 |
| $\nu_e,\,\bar{\nu_e}$ | $<3\,eV$ | 1 | 1 | 2 |
| $\nu_\mu,\,\bar{\nu_\mu}$ | $<0.19\,MeV $ | 1 | 1 | 2 |
| $\nu_\tau,\,\bar{\nu_\tau}$ | $<18.2\, MeV $ | 1 | 1 | 2 |
| Fermions | 90 | |||
Contents
Problem 1
УСЛОВИЯ
solution
РЕШЕНИЕ
