Magnetic Field Dependence of Muonium-antimuonium Conversion

Abstract

We study the magnetic field dependence of muonium--antimuonium conversion induced by neutral (pseudo)scalar bosons. Only the $SS$ operator contributes to the conversion of polarized muonium, but it gets quenched by a magnetic field of strength 0.1 Gauss or stronger. Conversion induced by $SS$ couplings for unpolarized muonium is independent of magnetic field. Magnetic fields of 0.1 Tesla or stronger starts to suppress conversion induced by $PP$ interactions in the lowest Breit-Rabi level, but gets partially compensated by a rise in conversion probability in the other unpolarized level. The effects of $(S\mp P)(S\mp P)$ and $(S\mp P)(S\pm P)$ operators behave in the same way as $(V\mp A)(V\mp A)$ and $(V\mp A)(V\pm A)$ operators, respectively.

12 pages, ReVtex, 5 figures available upon request

References in corpus (1)

• Muonium Hyperfine Structure and the Decay ${\mu }^{+}\to e^{+}+{\overline{\nu }}_e+{\nu }_{\mu }$ in Models with Dilepton Gauge Bosons

Cited by in corpus (15)

• Muon Decay and Physics Beyond the Standard Model
• Physics at a future Neutrino Factory and super-beam facility
• New Bounds from Searching for Muonium to Antimuonium Conversion
• Charged Lepton Flavor Violation: An Experimenter's Guide
• The Fermi constant from muon decay versus electroweak fits and CKM unitarity
• Probing $e\mu$ flavor-violating ALP at Belle II
• Low- and high-energy phenomenology of a doubly charged scalar
• Models of the Muonium to Antimuonium Transition
• Improved upper limit on Muonium to Antimuonium Conversion
• Probing the doubly-charged Higgs with Muonium to Antimuonium Conversion Experiment
• Zee model and phenomenology of lepton sector
• Conceptual Design of the Muonium-to-Antimuonium Conversion Experiment (MACE)
• Tests of a Family Gauge Symmetry Model at 10^3 TeV Scale
• Hyperfine structure and $(e^{-},e^{+})$-pair annihilation in the muonium-positronium MuPs and positronium hydrides
• Positron Transport System for Muonium-to-Antimuonium Conversion Experiment