This week's assignments will guide you through the following topics:
- The task of b tagging and H(bb) tagging
- Engineering features for these given task (and visualizing their effectivness through ROC curves)
Please read the following:
- Blog post: https://profmattstrassler.com/articles-and-posts/particle-physics-basics/the-known-apparently-elementary-particles/jets-the-manifestation-of-quarks-and-gluons/b-tagging-identifying-jets-from-bottom-quarks/
- Introduction, Section 4, and Section 6.2 of Ref. {cite:p}
Sirunyan:2017ezt - Section 6.4 of Ref. {cite:p}
Asquith:2018igt
Complete the following tasks:
- Run through the notebook 03-features.ipynb
- Modify it to also compute the ROC curves for the "number of secondary vertices"
nsv, "maximum relative secondary vertex$p_T$ "max(sv_pt)/fj_pt, and maximum relative secondary vertex massmax(sv_mass)/fj_sdmass.
Answer the following questions on Canvas:
- What is a secondary vertex? How is it related to particle tracks?
- What is the impact parameter of a track? What is the impact parameter significance?