Boosted-bottom jet tagging and BSM searches

TL;DR

The paper introduces a novel mu_x tagging method for boosted heavy flavor jets, enhancing identification efficiency and purity, and demonstrates its application in searches for new physics beyond the Standard Model at TeV energies.

Contribution

A new mu_x tagging scheme for boosted heavy flavor jets is proposed, improving tagging efficiency and purity for BSM searches.

Findings

Achieves a fake rate of about 1/100 for b-jet tagging.

Provides a 14% efficiency for identifying b-jets.

Enhances discovery potential for leptophobic Z' and charged Higgs bosons.

Abstract

I present a new scheme for tagging boosted heavy flavor jets called "$\mu_x$ tagging" and its application to TeV-scale physics beyond the Standard Model. Using muons from B hadron decay to define a particular combination "x" of angular information, and jet substructure variables, we identify a clean ($\epsilon_{\mathrm{fake}}/\epsilon_b\sim 1/100$) good efficiency ($\epsilon_b = 14\%$) tag. I demonstrate the usefulness of this new scheme by showing the reach for discovery of leptophobic $Z^\prime\to b\bar b$ and $tH^\pm\to t t b$.