In:
Journal of High Energy Physics, Springer Science and Business Media LLC, Vol. 2023, No. 6 ( 2023-06-26)
Kurzfassung:
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 $$ \sqrt{s} $$ 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, d E/ d x . Trajectories reconstructed solely by the inner tracking system and a d E/ d x measurement in the pixel detector layers provide sensitivity to particles with lifetimes down to $$ \mathcal{O} $$ 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.
Materialart:
Online-Ressource
ISSN:
1029-8479
DOI:
10.1007/JHEP06(2023)158
Sprache:
Englisch
Verlag:
Springer Science and Business Media LLC
Publikationsdatum:
2023
ZDB Id:
2027350-2
Permalink