Rettie, Sebastien;
ATLAS Collaboration;
(2023)
Search for heavy, long-lived, charged particles with large ionisation energy loss in pp collisions at s√
= 13 TeV using the ATLAS experiment and the full Run 2 dataset.
The Journal of High Energy Physics
10.1007/JHEP06(2023)158.
(In press).
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Abstract
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 fb−1 of proton–proton collisions at s√ = 13 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 O (1) ns with a mass, measured using the Bethe–Bloch relation, ranging from 100 GeV to 3 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.
| Type: | Article |
|---|---|
| Title: | Search for heavy, long-lived, charged particles with large ionisation energy loss in pp collisions at s√ = 13 TeV using the ATLAS experiment and the full Run 2 dataset |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1007/JHEP06(2023)158 |
| Publisher version: | https://doi.org/10.1007/JHEP06(2023)158 |
| Language: | English |
| Additional information: | This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited. SCOAP3 supports the goals of the International Year of Basic Sciences for Sustainable Development. |
| Keywords: | Beyond Standard Model, Exotics, Hadron-Hadron Scattering , Supersymmetry |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10176347 |
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