Uncovering quirk signal via energy loss inside tracker

TL;DR

This paper enhances the search for quirk particles at the LHC by analyzing ionization energy loss and solving their equations of motion, enabling the detection of quirks up to TeV scales.

Contribution

It introduces an improved co-planar search method considering ionization energy loss and numerically solves quirk motion equations for better detection sensitivity.

Findings

Probes colored fermion quirks up to 2.1 TeV.

Detects color neutral fermion quirks up to 450 GeV.

Enhances existing search strategies with energy loss analysis.

Abstract

The quirk particle carries Lorentz force and long-range infracolor force, while suffers relatively large ionization energy loss inside the detector. It can be indirectly constrained by mono-jet search or directly search through co-planar hits if the confinement scale is not too low ($\Lambda \gtrsim 100$ eV). Considering the ionization energy loss inside tracker, we improve the co-planar search. We also will solve the equation of motion for quirks numerically by including all of the important contributions. Based on our selection strategy, the $\sim 100$ fb$^{-1}$ dataset at the LHC will be able to probe the colored fermion/scalar quirks with masses up to {2.1/1.1 TeV}, and the color neutral fermion/scalar quirks with masses up to {450/150 GeV}, respectively.