hi again
yes your right the formula is not exactly what I want...
References: I found the formula in the book "Electron-Positron Physics at the Z" from several authors (M.G.Green, S.L.Lloyd, P.N.Ratoff and D.R.Ward) the derivation of the equation is in "QCD and Collider Physics" Cambridge...
Hi
Thanks for all replies...
I found something in a book... it concerns to the O(\alpha_s) terms, means the one gluon radiations...
The evaluation of these Feynman diagrams leads to the following form for the three-parton cross-section
\begin{equation}
\frac{d^2\sigma}{dx_1dx_2} =...
Hi
I am searching for the equation for the radiation probability of a gluon from a quark. I need this for an explanation of the jet structure after a Z decay. Because I heard that hard gluons are radiated with small angles to the quark. This means the energy is focused in the directions of the...
yes i think so too :-)... and which are the conditions? because it is still an ideal gas and not real:
1. I guess no interaction is a condition
2. probably the particles have to be massless...
but my problem is the following: In the books they use this approximation to describe a QGP (quark...
I found something like
p = \epsilon/3
\epsilon = \pi^2gT^4/30
... is this compatible to your equation?
... is the Stefan-Boltzmann gas the normal ideal gas, or is there an additional condition?
... what is with the mass of the particles? is there any condition to them?
thanks for the...