2021 (source code)
= 2021
{scope}
{title2=A15088W1}
Source paper: https://www.whatdotheyknow.com/request/oxford_physics_past_papers_2/response/2340696/attach/9/Physics%20Papers%202020.pdf?cookie_passthrough=1
The source cover identifies Hilary Term 2021 despite the attachment's filename. Use <natural units> $\hbar=c=1$, the <Minkowski metric> $\eta=\operatorname{diag}(1,-1,-1,-1)$, and $\not p=\gamma^\mu p_\mu$. The three-dimensional <scalar field theory> in <3> has two spatial dimensions and one time dimension. Results are at the stated order of <perturbative quantum field theory>.
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