cosmology Messages 14 Reaction score 0 Thread starter Jun 8, 2007 #1 how do you derive (1)?please work it out explicitly Last edited: Jul 27, 2008
HallsofIvy Science Advisor Homework Helper Messages 42,895 Reaction score 983 Jun 11, 2007 #2 What you have is [texJ(q^2)= -/frac{1}{2}ln^2(\frac{-q^2}{\lambda^2})+ 2ln(\frac{-q^2}{\lambda^2})+ \frac{\pi^2}{6}-\frac{5}{2}[/tex] If q and [itex]\lambda[/itex] are real, then those logarithms are not defined.
What you have is [texJ(q^2)= -/frac{1}{2}ln^2(\frac{-q^2}{\lambda^2})+ 2ln(\frac{-q^2}{\lambda^2})+ \frac{\pi^2}{6}-\frac{5}{2}[/tex] If q and [itex]\lambda[/itex] are real, then those logarithms are not defined.