Two (supposedly) trival questions in Schwartz's QFT notes. The notes can be found here.(adsbygoogle = window.adsbygoogle || []).push({});

1. page 155, equation 15.2, how does the integrand reduce to k dk? I would guess that there must be some logarithm, but k dk?

2. page 172, equtiation 17.11, why is it legal to shift the variable that way? Will the x integral not notice when we add the x to the equation? I mean, the one x term comletlely disappears after the shifting.

thank you!

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Questions concerning integrals in Schwartz's QFT text

Loading...

Similar Threads for Questions concerning integrals |
---|

I Computing Polyakov Loops in Lattice QCD (Basic Question) |

I Question about a definition in Rivasseau's book |

A Question about data & Monte Carlo statistical uncertainties |

I X-ray dose question |

I X-ray tube to gamma tube question |

**Physics Forums | Science Articles, Homework Help, Discussion**