2019
= 2019
{scope}
{title2=A15088W1}
Source paper: https://www.whatdotheyknow.com/request/oxford_physics_past_papers_2/response/2340696/attach/7/Physics%20Papers%202018.pdf?cookie_passthrough=1
The cover establishes Hilary Term 2019 despite the bundle's 2018 filename. Use $\hbar=c=1$. For questions 2 and 3 the <Minkowski metric> has signature $(+,-,\ldots,-)$. Question 1 has a preferred time coordinate and does not assume <Lorentz invariance>.