Probing the muon g2g-2 anomaly with the Higgs boson at a muon collider

Dec 4, 2020
6 pages
Published in:
  • Phys.Rev.D 104 (2021) 7, 075021
  • Published: Oct 1, 2021
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DOI:
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Abstract: (APS)
We point out that heavy new physics contributions in leptonic dipole moments and high-energy cross sections of lepton pairs into Higgs bosons and photons are connected model-independently. In particular, we demonstrate that a muon collider, running at center-of-mass energies of several TeV, can provide a unique test of new physics in the muon g-2 through the study of high-energy processes such as μ+μ-hγ. This high-energy test would be of the utmost importance to shed light on the longstanding muon g-2 anomaly as it is not affected by the hadronic and experimental uncertainties entering the current low-energy determination of the muon g-2. Furthermore, we show that the current bound on the muon electric dipole moment can be improved by three orders of magnitude, down to few×10-22ecm.
Note:
  • 6 pages, 3 figures. v3: published version
  • muon: magnetic moment
  • muon: electric moment
  • magnetic moment: anomaly
  • effective Lagrangian
  • effective operator
  • operator: dimension: 6
  • Higgs particle: rare decay
  • muon: storage ring
  • numerical calculations
  • new physics