First Constraints on Heavy QCD Axions with a Liquid Argon Time Projection Chamber Using the ArgoNeuT Experiment

(The ArgoNeuT Collaboration)

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

We present the results of a search for heavy QCD axions performed by the ArgoNeuT experiment at Fermilab. We search for heavy axions produced in the NuMI neutrino beam target and absorber decaying into dimuon pairs, which can be identified using the unique capabilities of ArgoNeuT and the MINOS near detector. This decay channel is motivated by a broad class of heavy QCD axion models that address the strong CP and axion quality problems with axion masses above the dimuon threshold. We obtain new constraints at a 95% confidence level for heavy axions in the previously unexplored mass range of 0.2-0.9 GeV, for axion decay constants around tens of TeV.

Original languageEnglish (US)
Article number221802
JournalPhysical Review Letters
Volume130
Issue number22
DOIs
StatePublished - Jun 2 2023

ASJC Scopus subject areas

  • General Physics and Astronomy

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