2016 (source code)
= 2016
{scope}
{title2=A15272W1}
Source paper: https://www.whatdotheyknow.com/request/oxford_physics_past_papers_2/response/2340696/attach/4/Physics%20Papers%202015.pdf?cookie_passthrough=1. The held cover dates this sitting to 19 April 2016; the annual bundle's filename does not determine the year. We use $d=4-\epsilon$ for the ultraviolet regulator, reserving $i0$ for the causal prescription. The supplied propagators correspond to $g=\operatorname{diag}(-,+,+,+)$ and $\{\gamma^\mu,\gamma^\nu\}=-2g^{\mu\nu}$. Q1 and Q3 are readable. A duplicate cover obscures Q2 on printed page 3; its known a–c scopes retain explicit source-gap TODOs.
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