2B or not 2B, a study of bottom-quark-philic semi-visible jets

TL;DR

This paper investigates semi-visible jets from dark sectors with a focus on bottom quarks, analyzing collider signatures, constraints, and proposing improved reconstruction and search strategies.

Contribution

It introduces a bottom-quark-focused dark shower model using Pythia, evaluates existing constraints, and suggests enhanced jet reconstruction and search methods.

Findings

Constraints from current searches are applied to the model.

Variable-radius jets improve signal reconstruction.

A new search strategy for bottom-quark semi-visible jets is proposed.

Abstract

Semi-visible jets arise in strongly interacting dark sector, resulting in jets overlapping with the missing transverse momentum direction. The implementation of semi-visible jets is done using the Pythia Hidden Valley module to mimic the QCD sector showering in so-called dark shower. In this work, only heavy flavour Standard Model quarks are considered in dark shower, resulting in a much less ambiguous collider signature of semi-visible jets compared to the democratic production of all five quark flavours in dark shower. The constraints from available searches on this signature are presented, and it is shown the signal reconstruction can be improved by using variable-radius jets. Finally a search strategy is suggested.