Scattering amplitudes homework

Here I am posting my solutions to the problems given in the 2018 scattering amplitudes course taught at McGill. We are mostly following the text by Elvang and Huang. If there are mistakes please let me know!

• Assignment 1 (Elvang: 2.1, 2.3, 2.4, 2.8, 2.31, 2.32, 2.34 and Srednicki: 33.2)

• Assignment 2 (Elvang: 2.14 (along z-direction), 2.15, 2.21, 2.22, 2.23, 2.26)

• Assignment 3 (Reproduce equations 3.7, 3.10, 3.12, 3.19 of 1709.04891)

• Assignment 4 (Elvang: 3.1, 3.2, 3.5, 3.6, reproduce Parke-Taylor using non-adjacent BCFW shift)