DOI: 10.17182/hepdata.127994.v1/t1
title: "README and table of contents" of "Search for heavy, long-lived, charged particles with large ionisation energy loss in $pp$ collisions at $\sqrt{s} = 13~\text{TeV}$ using the ATLAS experiment and the full Run 2 dataset"

description: This material aims to give people outside the ATLAS Collaboration the possibility to reinterpret the results from the search for heavy charged long-lived particles (CLLPs), using only particles from Monte Carlo event generators. The reinterpretation material is provided for signal regions SR-Inclusive_Low and SR-Inclusive_High.
 The "long" lifetime regime of mass windows is used. Users are guided to read Guide.pdf (available from "Resources" or "Download All" buttons) for how to use the provided materials for reinterpretation. The pseudo-code snippet snippet.cxx also illustrates a sketch of possible implementation. 

<b>Signal Region (Discovery) mass distribution</b> SR-Inclusive_Low mass distribution SR-Inclusive_High mass distribution <b>Signal Region (Discovery) $p_\text{T}, \eta, dE/dx$ distribution</b> SR-Inclusive_Low pT distribution SR-Inclusive_High pT distribution SR-Inclusive_Low $\eta$ distribution SR-Inclusive_High $\eta$ distribution SR-Inclusive_Low dE/dx distribution SR-Inclusive_High dE/dx distribution <b>Signal Region (Limit Setting) mass distribution</b> SR-Trk-IBL0_Low mass distribution SR-Mu-IBL0_Low mass distribution SR-Trk-IBL0_High mass distribution SR-Mu-IBL0_High mass distribution SR-Trk-IBL1 mass distribution SR-Mu-IBL1 mass distribution <b>Signal Region (Limit Setting) $p_\text{T}$ distribution</b> SR-Trk-IBL0_Low pT distribution SR-Mu-IBL0_Low pT distribution SR-Trk-IBL0_High pT distribution SR-Mu-IBL0_High pT distribution SR-Trk-IBL1 pT distribution SR-Mu-IBL1 pT distribution <b>Signal Region (Limit Setting) $dE/dx$ distribution</b> SR-Trk-IBL0_Low dE/dx distribution SR-Mu-IBL0_Low dE/dx distribution SR-Trk-IBL0_High dE/dx distribution SR-Mu-IBL0_High dE/dx distribution SR-Trk-IBL1 dE/dx distribution SR-Mu-IBL1 dE/dx distribution <b>Discovery Signal Regions $p_{0}$ values</b> p0-values and model-independent limits, short regime p0-values and model-independent limits, long regime <b>Validation Region plots</b> VR-LowPt-Inclusive_High mass distribution VR-HiEta-Inclusive mass distribution VR-LowPt-Trk-IBL0_Low mass distribution VR-LowPt-Mu-IBL0_Low mass distribution VR-LowPt-Trk-IBL0_High mass distribution VR-LowPt-Mu-IBL0_High mass distribution VR-LowPt-Trk-IBL1 mass distribution VR-LowPt-Mu-IBL1 mass distribution
description: This paper presents a search for hypothetical massive, charged, long-lived particles with the ATLAS detector at the LHC using an integrated luminosity of $139 \mathrm{fb^{-1}}$ of proton--proton collisions at $\sqrt{s}=13 \text{TeV}$. These particles are expected to move significantly slower than the speed of light and should be identifiable by their high transverse momenta and anomalously large specific ionisation losses, $dE/dx$. Trajectories reconstructed solely by the inner tracking system and a $dE/dx$ measurement in the pixel detector layers provide sensitivity to particles with lifetimes down to ${\cal O}(1) \text{ns}$ with a mass, measured using the Bethe--Bloch relation, ranging from $100 \text{GeV}$ to 3 $\text{TeV}$. Interpretations for pair-production of $R$-hadrons, charginos and staus in scenarios of supersymmetry compatible with these particles being long-lived are presented, with mass limits extending considerably beyond those from previous searches in broad ranges of lifetime.