Atmospheric axionlike particles at Super-Kamiokande

  title={Atmospheric axionlike particles at Super-Kamiokande},
  author={Kingman Cheung and Jui-Lin Kuo and Po-Yan Tseng and Zeren Simon Wang},
  journal={Physical Review D},
We consider a muonphilic axion-like-particle (ALP), denoted as a , lighter than twice the muon mass. ALPs of this mass range dominantly decay into a pair of photons, induced by a triangular muon loop. Such light muonphilic ALPs are naturally long-lived. At the atmosphere, the ALPs are copiously produced from charged-meson decays in air showers, such as π ± → µ ± νa , via the ALP-muon coupling g aµµ . After propagating tens of kilometers, the ALPs decay with a → γγ inside large-volume Cherenkov… 

Figures from this paper



arXiv:1612.05093 [astro-ph.IM

  • JINST 12,
  • 2017

Muon g-2

The muon g-2 collaboration has measured the anomalous magnetic g value of the positive muon to within a relative uncertainty of 0.7 parts per million. The result, a_{\mu^+} = 11 659 204(7)(5) x

Radiative transfer in stars by feebly interacting bosons

Starting from first principles, we study radiative transfer by new feebly-interacting bosons (FIBs) such as axions, axion-like particles (ALPs), dark photons, and others. Our key simplification is to

Axion-Like Particles, Two-Higgs-Doublet Models, Leptoquarks, and the Electron and Muon g − 2

Data from the Muon g-2 experiment and measurements of the fine structure constant suggest that the anomalous magnetic moments of the muon and electron are at odds with standard model expectations. We

Feebly-interacting particles: FIPs 2020 workshop report

With the establishment and maturation of the experimental programs searching for new physics with sizeable couplings at the LHC, there is an increasing interest in the broader particle and

Leading hadronic contribution to the muon magnetic moment from lattice QCD.

Substantial precision is reached to discriminate between the measurement of the anomalous magnetic moment of the muon and the predictions of dispersive methods, which favours the experimentally measured value over those obtained using the dispersion relation.