{
  "id": "1409.4198",
  "version": "v1",
  "published": "2014-09-15T10:10:08.000Z",
  "updated": "2014-09-15T10:10:08.000Z",
  "title": "Correlation Between Muon $g-2$ and $μ\\rightarrow{e}γ$",
  "authors": [
    "Wei-Chi Chiu",
    "Chao-Qiang Geng",
    "Da Huang"
  ],
  "comment": "17 pages, 4 figures",
  "categories": [
    "hep-ph",
    "hep-ex"
  ],
  "abstract": "While the muon $g-2$ anomaly can be successfully explained by some new physics models, most of them are severely constrained by the $\\mu \\to e \\gamma$ bound. This tension is more transparent from the effective field theory perspective, in which the two phenomena are encoded in two very similar operators. However, with the ${\\cal O}(1)$ Wilson coefficients, the current upper bound on $\\mu \\to e \\gamma$ indicates a new-physics cutoff scale five orders smaller than that needed to eliminate the $(g-2)_\\mu$ anomaly. By summarizing all the formulae from the one-loop contributions to the muon $g-2$ with the internal-particle spin not larger than 1, we point out two general methods to reconcile the conflict between the muon $g-2$ and $\\mu \\to e \\gamma$: the GIM mechanism and the non-universal couplings. For the latter method, we use a simple scalar leptoquark model as an illustration.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2014-09-15T10:10:08.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "12.15.Ji",
      "11.30.Fs",
      "13.35.Bv",
      "14.60.Ef"
    ],
    "keywords": [
      "correlation",
      "simple scalar leptoquark model",
      "current upper bound",
      "new-physics cutoff scale",
      "effective field theory"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "doi": "10.1103/PhysRevD.91.013006",
      "journal": "Physical Review D",
      "year": 2015,
      "month": "Jan",
      "volume": 91,
      "number": 1,
      "pages": "013006"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 17,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 1316498,
      "adsabs": "2015PhRvD..91a3006C"
    }
  }
}