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helpcometk
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Homework Statement
Calculate the number g* of effective relativistic degrees of freedom as the universe
cools through the temperature ranges (i) T > 103 GeV, (ii) 1 MeV < T < 100 MeV,
and (iii) T < 0:1 MeV.
Homework Equations
for the equation that is required to be used look the attachement/
The Attempt at a Solution
this equation is taken from the website:
http://ned.ipac.caltech.edu/level5/Sept03/Trodden/Trodden4_2.html
the question is what must be substituted in this equation in order to obtain g*.
The temperature T is the actual temperature of the background plasma,