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Feasibility study of True Muonium discovery with CERN-SPS H4 positron beam

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arxiv 2409.11342 v3 pith:5DEPJJHB submitted 2024-09-17 hep-ex hep-ph

classification hep-exhep-ph
keywords beamdiscoverymuoniumobservedortho-tmpositronstruebeen
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abstract

True muonium ($\mu^+\mu^-$) is one of the heaviest and smallest electromagnetic bound states not containing hadrons, and has never been observed so far. In this work it is shown that the spin-1 TM state (ortho-TM) can be observed at a discovery level of significance in three months at the CERN SPS North-Area H4A beam line, using 43.7 GeV secondary positrons. In this way, by impinging the positrons on multiple thin low-Z targets, ortho-TM, which decays predominantly to $e^+e^-$, can be produced from $e^+e^- \to TM$ interactions on resonance ($\sqrt{s} \sim 2m_{\mu}$).

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Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Creating true muonium via charmonium radiative decay

    hep-ph 2024-12 conditional novelty 6.0 of 10

    Predicts Br(J/psi -> gamma + true para-muonium) around 7e-13, implying about 2-3 events per year at the proposed Super Tau-Charm Facility.

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