Talk:Bethe-Bloch formula

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Shouldn't there be a Z (Capital, with Ze being the charge of the target)?

the form is not the same as in the reference (pdg). Tmax is missing here? —Preceding unsigned comment added by 130.238.68.193 (talk) 15:05, 22 February 2008 (UTC)

The target's Z is "hidden" in n, electron density.
For the Tmax, note that the PDG writes:
\frac{1}{2} ln\frac{2m_e c^2 \beta^2\gamma^2 T_{max}}{I^2}
where T_{max} = \frac{2m_e c^2 \beta^2\gamma^2}{1+2\gamma m_e/M + (m_e/M)^2} ,
reducing to 2mec2β2γ2 at low energy; so, just remember that 1/2 ln(x) = ln(sqrt(x)), and you see that they are the same! - Sergio Ballestrero (talk) 09:39, 23 February 2008 (UTC)