Search for heavy long-lived charged particles with level-1 trigger scouting data from proton-proton collisions at $\sqrt{s}$ = 13.6 TeV

Abstract

A search for heavy long-lived charged particles at the LHC is presented. Particles interacting with the CMS muon detector across several bunch crossings are searched for using a data sample of proton-proton collisions at $\sqrt{s}$ = 13.6 TeV collected with the CMS detector in 2024, corresponding to an integrated luminosity of 3.7 fb${}^{-1}$. This is the first search relying on the novel level-1 trigger scouting data set collected without any trigger selection, allowing correlations between bunch crossings to be analyzed. The results are interpreted as upper limits on the cross sections of several benchmark processes with pair production of heavy long-lived charged particles. Upper limits on the fiducial cross section of a heavy long-lived charged particle with $p_{\mathrm{T}}$ $>$ 500 GeV and $|\eta |$ $<$ 0.83 are also set in different ranges of $\beta =v/c$. This analysis is a crucial proof of concept for the level-1 trigger data scouting system and complements existing searches for heavy long-lived charged particles by extending the sensitivity to lower $\beta$ values.

Replaced with the published version. Added the journal reference and the DOI.. All figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/EXO-25-010 (CMS Public Pages)

References in corpus (30)

• An Introduction to PYTHIA 8.2
• Asymptotic formulae for likelihood-based tests of new physics
• Parton distributions from high-precision collider data
• Supersymmetric Unification Without Low Energy Supersymmetry And Signatures for Fine-Tuning at the LHC
• Echoes of a Hidden Valley at Hadron Colliders
• Merging meets matching in MC@NLO
• Parton distributions with QED corrections
• Extraction and validation of a new set of CMS PYTHIA8 tunes from underlying-event measurements
• Stable Massive Particles at Colliders
• Searches for long-lived charged particles in pp collisions at sqrt(s) = 7 and 8 TeV
• Search for Heavy Neutral and Charged Leptons in e+ e- Annihilation at LEP
• Searches for heavy long-lived sleptons and R-Hadrons with the ATLAS detector in pp collisions at sqrt(s) = 7 TeV
• The CMS statistical analysis and combination tool: COMBINE
• Interactions of Heavy Stable Hadronizing Particles
• Search for heavy long-lived charged particles in pp collisions at sqrt(s) = 7 TeV
• Search for Stable and Long-Lived Massive Charged Particles in e+e- Collisions at sqrt(s) = 183-209 GeV
• Search for Long-Lived Massive Charged Particles in 1.96 TeV $\bar{p}p}$ Collisions
• Search for heavy long-lived charged $R$-hadrons with the ATLAS detector in 3.2 fb${}^{-1}$ of proton--proton collision data at $\sqrt{s}=13$ TeV
• Interactions of Coloured Heavy Stable Particles in Matter
• Search for charged massive long-lived particles with the D0 detector
• Search for long-lived, multi-charged particles in pp collisions at sqrt(s)=7 TeV using the ATLAS detector
• Search for Massive Long-lived Highly Ionising Particles with the ATLAS Detector at the LHC
• Supermodels for early LHC
• Search for metastable heavy charged particles with large ionisation energy loss in $pp$ collisions at $\sqrt{s}$ = 8 TeV using the ATLAS experiment
• A search for charged massive long-lived particles
• Search for Heavy Stable and Long-Lived Particles in e+e- Collisions at sqrt(s)=189 GeV
• 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
• dE/dx from boosted long-lived particles
• Search for long-lived charged particles using large specific ionisation loss and time of flight in 140 $f{b}^{-1}$ of $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Search for heavy long-lived charged particles with large ionization energy loss in proton-proton collisions at $\sqrt{s}$ = 13 TeV