{
  "id": "0706.2156",
  "version": "v3",
  "published": "2007-06-14T16:26:43.000Z",
  "updated": "2007-07-10T15:23:48.000Z",
  "title": "Direct CP Violation in B Decays",
  "authors": [
    "Michael Gronau"
  ],
  "comment": "corrected typo and added references",
  "journal": "ECONFC070512:007,2007",
  "categories": [
    "hep-ph",
    "hep-ex"
  ],
  "abstract": "We discuss several aspects of direct CP asymmetries in B decays, which are very useful in spite of hadronic uncertainties in asymmetry calculations. 1) Asymmetries in decays to $D^{(*)}K^{(*)}$, $\\pi^+\\pi^-, \\rho^+\\rho^-$, providing precision tests for the CKM phase $\\gamma$. 2) Null tests in $B^+\\to J/\\psi K^+, \\pi^+\\pi^0$, where a nonzero asymmetry provides evidence for New Physics. 3) Isospin and broken flavor SU(3) relations among CP asymmetries in $B\\to K\\pi, \\pi\\pi$ predicting $A_{CP}(B^0\\to K^0\\pi^0)$ and $A_{CP}(B^0\\to \\pi^0\\pi^0)$. 4) The significance of $A_{CP}(B^0\\to K^+\\pi^-)\\ne A_{CP}(B^+\\to K^+\\pi^0)$. 5) A potentially stringent constraint on $\\gamma$ from $A_{CP}(B^+\\to K^+\\pi^0)$ and $R_c\\equiv 2\\Gamma(B^+\\to K^+\\pi^0)/\\Gamma(B^+\\to K^0\\pi^+)$. 6) The role of direct CP asymmetries in $b\\to s\\bar qq$ decays for studying the origin of potential New Physics.",
  "revisions": [
    {
      "version": "v3",
      "updated": "2007-07-10T15:23:48.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "direct cp violation",
      "direct cp asymmetries",
      "broken flavor su",
      "hadronic uncertainties",
      "ckm phase"
    ],
    "tags": [
      "journal article"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 753139,
      "adsabs": "2007arXiv0706.2156G"
    }
  }
}