Search for Neutral, Long-lived Particles Decaying into Two Muons in p-pbar Collisions at sqrt(s) = 1.96 TeV

Abstract

We present a search for a neutral particle, pair-produced in p-pbar collisions at sqrt(s)=1.96 TeV, which decays into two muons and lives long enough to travel at least 5 cm before decaying. The analysis uses ~380 pb^-1 of data recorded with the D0 detector. The background is estimated to be about one event. No candidates are observed, and limits are set on the pair production cross section times branching fraction into dimuons + X for such particles. For a mass of 10 GeV and lifetime of 4x10^-11 s, we exclude values greater than 0.14 pb (95% C.L.). These results are used to limit the interpretation of NuTeV's excess of di-muon events.

arXiv commentsubmitted to Phys. Rev. Lett

References in corpus (14)

• New Generation of Parton Distributions with Uncertainties from Global QCD Analysis
• A Unified Approach to the Classical Statistical Analysis of Small Signals
• Global QCD Analysis of Parton Structure of the Nucleon: CTEQ5 Parton Distributions
• R-parity violating supersymmetry
• The Upgraded D0 Detector
• Search for Heavy Neutral and Charged Leptons in e+ e- Annihilation at LEP
• The Muon System of the Run II D0 Detector
• Search for Stable and Long-Lived Massive Charged Particles in e+e- Collisions at sqrt(s) = 183-209 GeV
• Search for gauge mediated SUSY breaking topologies in e+e- collisions at centre-of-mass energies up to 209GeV
• Attempts at Explaining the NuTeV Observation of Di-Muon Events
• Search for R-parity Violating Decays of Supersymmetric Particles in e+e- Collisions at LEP
• Search for R-Parity Violating Decays of Scalar Fermions at LEP
• Search for supersymmetric particles in light gravitino scenarios and sleptons NLSP
• Observation of an Anomalous Number of Dimuon Events in a High Energy Neutrino Beam

Cited by in corpus (23)

• Exotic Decays of the 125 GeV Higgs Boson
• Discovering the Higgs Through Highly-Displaced Vertices
• Search for massive, long-lived particles using multitrack displaced vertices or displaced lepton pairs in pp collisions at $\sqrt{s}$ = 8 TeV with the ATLAS detector
• Collider Searches for Long-Lived Particles Beyond the Standard Model
• Search for long-lived, massive particles in events with displaced vertices and missing transverse momentum in $\sqrt{s}$ = 13 TeV $pp$ collisions with the ATLAS detector
• Search for long-lived particles that decay into final states containing two electrons or two muons in proton-proton collisions at sqrt(s) = 8 TeV
• Displaced Supersymmetry
• 2:1 for Naturalness at the LHC?
• Search for Displaced Supersymmetry in events with an electron and a muon with large impact parameters
• Long-Lived Neutralino NLSPs
• The Fate of Long-Lived Superparticles with Hadronic Decays after LHC Run 1
• Search for long-lived, heavy particles in final states with a muon and multi-track displaced vertex in proton-proton collisions at sqrt(s)=7 TeV with the ATLAS detector
• Search in leptonic channels for heavy resonances decaying to long-lived neutral particles
• Search for Long-Lived Particles in $e^{+}{e}^{-}$ Collisions
• Search for long-lived particles in final states with displaced dimuon vertices in $pp$ collisions at $\sqrt{s}=$ 13 TeV with the ATLAS detector
• Very Light Charginos and Higgs Decays
• Supersymmetric sphaleron configurations as the origin of the perplexing ANITA events
• Higgs Production Amidst the LHC Detector
• Direct Searches for New Physics Particles at BABAR
• Review of searches for Higgs bosons and beyond the standard model physics at the Tevatron
• Searches for Long-lived Particles at the Tevatron Collider
• Search for displaced vertices arising from decays of new heavy particles in 7 TeV pp collisions at ATLAS
• A possible explanation for NuTeV's anomalous dimuon events