{
  "metadata": {
    "title": "HFLAV Charm D0 Hadronic Branching Fractions",
    "description": "Averages of D0 -> K- pi+, D0 -> pi- pi+, and D0 -> K+ K- branching fractions including correlations among these averages from the fit. Also includes a derived DCS D0 -> K+ pi- branching fraction.",
    "version": "1.0.1",
    "date": "2026-02-19",
    "author": "HFLAV Collaboration",
    "schema": "1.1.0"
  },
  "groups": [
    {
      "name": "CF & CS D0 to hh branching fractions from fit",
      "fit": {
        "chi2": 35.98476,
        "ndf": 13,
        "p": 0.0005965862112060339
      },
      "averages": [
        {
          "name": "BR_D0_K-_pi+",
          "latexname": "$\\mathcal{B}(D^0 \\to K^- \\pi^+)$",
          "PDGcode": "S032.1",
          "comment": "Averages after adjustments to ensure uniform treatment of final state radiation across all input measurements. See chapter 10.3 of https://arxiv.org/pdf/2411.18639",
          "average": {
            "value": {
              "central": 0.03999,
              "statistical": 5.5e-05,
              "systematic": 0.00044697203491941194
            }
          }
        },
        {
          "name": "BR_D0_pi+_pi-",
          "latexname": "$\\mathcal{B}(D^0 \\to \\pi^+ \\pi^-)$",
          "PDGcode": "S032.5",
          "comment": "Averages after adjustments to ensure uniform treatment of final state radiation across all input measurements. See chapter 10.3 of https://arxiv.org/pdf/2411.18639",
          "average": {
            "value": {
              "central": 0.00149,
              "statistical": 1.2e-05,
              "systematic": 2.4207436873820408e-05
            }
          }
        },
        {
          "name": "BR_D0_K+_K-",
          "latexname": "$\\mathcal{B}(D^0 \\to K^+ K^-)$",
          "PDGcode": "S032.7",
          "comment": "Averages after adjustments to ensure uniform treatment of final state radiation across all input measurements. See chapter 10.3 of https://arxiv.org/pdf/2411.18639",
          "average": {
            "value": {
              "central": 0.004113,
              "statistical": 1.7e-05,
              "systematic": 4.802082881417188e-05
            }
          }
        }
      ],
      "averages_correlation": [
        [
          1.0,
          0.767,
          0.755
        ],
        [
          0.767,
          1.0,
          0.577
        ],
        [
          0.755,
          0.577,
          1.0
        ]
      ],
      "inputs": [
        {
          "name": "BR_D0_K-_pi+",
          "latexname": "$\\mathcal{B}(D^0 \\to K^- \\pi^+)$",
          "comment": "Absolute branching fraction measurements",
          "sources": [
            {
              "name": "BESIII:2018",
              "value": {
                "central": 0.03883,
                "statistical": 6e-05,
                "systematic": 0.00051
              },
              "references": {
                "bibtex": "BESIII:2018apz",
                "pub": "Phys. Rev. D 97 (2018) 072004",
                "doi": "10.1103/PhysRevD.97.072004",
                "arxiv": "1802.03119",
                "url": "https://doi.org/10.1103/PhysRevD.97.072004"
              }
            },
            {
              "name": "CLEOc:2014",
              "value": {
                "central": 0.03934,
                "statistical": 0.00021,
                "systematic": 0.00061
              },
              "references": {
                "bibtex": "CLEO:2013rjc",
                "pub": "Phys. Rev. D 89 (2014) 072002",
                "doi": "10.1103/PhysRevD.89.072002",
                "arxiv": "1312.6775",
                "url": "https://doi.org/10.1103/PhysRevD.89.072002"
              }
            },
            {
              "name": "BaBar:2008",
              "value": {
                "central": 0.04007,
                "statistical": 0.00037,
                "systematic": 0.00072
              },
              "references": {
                "bibtex": "BaBar:2007crr",
                "pub": "Phys. Rev. Lett. 100 (2008) 051802",
                "doi": "10.1103/PhysRevLett.100.051802",
                "arxiv": "0704.2080",
                "url": "https://doi.org/10.1103/PhysRevLett.100.051802"
              }
            },
            {
              "name": "CLEOII:1998",
              "value": {
                "central": 0.0381,
                "statistical": 0.0015,
                "systematic": 0.0016
              },
              "references": {
                "bibtex": "CLEO:1997zun",
                "pub": "Phys. Rev. Lett. 80 (1998) 3193",
                "doi": "10.1103/PhysRevLett.80.3193",
                "arxiv": "hep-ex/9712023",
                "url": "https://doi.org/10.1103/PhysRevLett.80.3193"
              }
            },
            {
              "name": "ALEPH:1997",
              "value": {
                "central": 0.039,
                "statistical": 0.0009,
                "systematic": 0.0012
              },
              "references": {
                "bibtex": "ALEPH:1997jyv",
                "pub": "Phys. Lett. B 403 (1997) 367",
                "doi": "10.1016/S0370-2693(97)00585-6",
                "url": "https://doi.org/10.1016/S0370-2693(97)00585-6"
              }
            },
            {
              "name": "ARGUS:1994",
              "value": {
                "central": 0.0341,
                "statistical": 0.0012,
                "systematic": 0.0028
              },
              "references": {
                "bibtex": "ARGUS:1994onx",
                "pub": "Phys. Lett. B 340 (1994) 125",
                "doi": "10.1016/0370-2693(94)91308-0",
                "url": "https://doi.org/10.1016/0370-2693(94)91308-0"
              }
            },
            {
              "name": "CLEOII:1993",
              "value": {
                "central": 0.0395,
                "statistical": 0.0008,
                "systematic": 0.0017
              },
              "references": {
                "bibtex": "CLEO:1993gww",
                "pub": "Phys. Rev. Lett. 71 (1993) 3070",
                "doi": "10.1103/PhysRevLett.71.3070",
                "url": "https://doi.org/10.1103/PhysRevLett.71.3070"
              }
            },
            {
              "name": "ALEPH:1991",
              "value": {
                "central": 0.0362,
                "statistical": 0.0034,
                "systematic": 0.0044
              },
              "references": {
                "bibtex": "ALEPH:1991phy",
                "pub": "Phys. Lett. B 266 (1991) 218",
                "doi": "10.1016/0370-2693(91)90769-M",
                "url": "https://doi.org/10.1016/0370-2693(91)90769-M"
              }
            }
          ]
        },
        {
          "name": "BR_D0_pi+_pi-",
          "latexname": "$\\mathcal{B}(D^0 \\to \\pi^+ \\pi^-)$",
          "comment": "Absolute branching fraction measurements",
          "sources": [
            {
              "name": "BESIII:2018",
              "value": {
                "central": 0.001508,
                "statistical": 1.8e-05,
                "systematic": 3.2e-05
              },
              "references": {
                "bibtex": "BESIII:2018apz",
                "pub": "Phys. Rev. D 97 (2018) 072004",
                "doi": "10.1103/PhysRevD.97.072004",
                "arxiv": "1802.03119",
                "url": "https://doi.org/10.1103/PhysRevD.97.072004"
              }
            }
          ]
        },
        {
          "name": "BR_D0_pi+_pi-..BR_D0_K-_pi+",
          "latexname": "$\\mathcal{B}(D^0 \\to \\pi^+ \\pi^-)/\\mathcal{B}(D^0 \\to K^- \\pi^+)$",
          "comment": "Ratio to D0 -> K- pi+ measurements",
          "sources": [
            {
              "name": "CLEOc:2010",
              "value": {
                "central": 0.037,
                "statistical": 0.0006,
                "systematic": 0.0009
              },
              "references": {
                "bibtex": "CLEO:2009fiz",
                "pub": "Phys. Rev. D 81 (2010) 052013",
                "doi": "10.1103/PhysRevD.81.052013",
                "arxiv": "0906.3198",
                "url": "https://doi.org/10.1103/PhysRevD.81.052013"
              }
            },
            {
              "name": "CDF:2005",
              "value": {
                "central": 0.03594,
                "statistical": 0.00054,
                "systematic": 0.0004
              },
              "references": {
                "bibtex": "CDF:2004ohx",
                "pub": "Phys. Rev. Lett. 94 (2005) 122001",
                "doi": "10.1103/PhysRevLett.94.122001",
                "arxiv": "hep-ex/0504006",
                "url": "https://doi.org/10.1103/PhysRevLett.94.122001"
              }
            },
            {
              "name": "FOCUS:2003",
              "value": {
                "central": 0.0353,
                "statistical": 0.0012,
                "systematic": 0.0006
              },
              "references": {
                "bibtex": "FOCUS:2002qvx",
                "pub": "Phys. Lett. B 555 (2003) 167",
                "doi": "10.1016/S0370-2693(03)00053-4",
                "arxiv": "hep-ex/0212058",
                "url": "https://doi.org/10.1016/S0370-2693(03)00053-4"
              }
            }
          ]
        },
        {
          "name": "BR_D0_K+_K-",
          "latexname": "$\\mathcal{B}(D^0 \\to K^+ K^-)$",
          "comment": "Absolute branching fraction measurements",
          "sources": [
            {
              "name": "BESIII:2018",
              "value": {
                "central": 0.004233,
                "statistical": 2.1e-05,
                "systematic": 6.4e-05
              },
              "references": {
                "bibtex": "BESIII:2018apz",
                "pub": "Phys. Rev. D 97 (2018) 072004",
                "doi": "10.1103/PhysRevD.97.072004",
                "arxiv": "1802.03119",
                "url": "https://doi.org/10.1103/PhysRevD.97.072004"
              }
            }
          ]
        },
        {
          "name": "BR_D0_K+_K-..BR_D0_K-_pi+",
          "latexname": "$\\mathcal{B}(D^0 \\to K^+ K^-)/\\mathcal{B}(D^0 \\to K^- \\pi^+)$",
          "comment": "Ratio to D0 -> K- pi+ measurements",
          "sources": [
            {
              "name": "CLEOc:2010",
              "value": {
                "central": 0.1041,
                "statistical": 0.0011,
                "systematic": 0.0012
              },
              "references": {
                "bibtex": "CLEO:2009fiz",
                "pub": "Phys. Rev. D 81 (2010) 052013",
                "doi": "10.1103/PhysRevD.81.052013",
                "arxiv": "0906.3198",
                "url": "https://doi.org/10.1103/PhysRevD.81.052013"
              }
            },
            {
              "name": "CDF:2005",
              "value": {
                "central": 0.0992,
                "statistical": 0.0011,
                "systematic": 0.0012
              },
              "references": {
                "bibtex": "CDF:2004ohx",
                "pub": "Phys. Rev. Lett. 94 (2005) 122001",
                "doi": "10.1103/PhysRevLett.94.122001",
                "arxiv": "hep-ex/0504006",
                "url": "https://doi.org/10.1103/PhysRevLett.94.122001"
              }
            },
            {
              "name": "FOCUS:2003",
              "value": {
                "central": 0.0993,
                "statistical": 0.0014,
                "systematic": 0.0014
              },
              "references": {
                "bibtex": "FOCUS:2002qvx",
                "pub": "Phys. Lett. B 555 (2003) 167",
                "doi": "10.1016/S0370-2693(03)00053-4",
                "arxiv": "hep-ex/0212058",
                "url": "https://doi.org/10.1016/S0370-2693(03)00053-4"
              }
            }
          ]
        }
      ]
    },
    {
      "name": "Derived DCS D0 to K+ pi- branching fraction",
      "fit": {
        "chi2": 0,
        "p": 1
      },
      "averages": [
        {
          "name": "BR_D0_K+_pi-",
          "latexname": "$\\mathcal{B}(D^0 \\to K^+ \\pi^-)$",
          "PDGcode": "S032.362",
          "comment": "Derived DCS D0 to K+ pi- branching fraction. See chapter 10.3 of https://arxiv.org/pdf/2411.18639",
          "average": {
            "value": {
              "central": 0.0001375656,
              "uncertainty": 1.74345651577549e-06
            }
          }
        }
      ],
      "averages_correlation": [
        [
          1.0
        ]
      ],
      "inputs": [
        {
          "name": "BR_D0_K+_pi-..BR_D0_K-_pi+",
          "latexname": "$\\mathcal{B}(D^0 \\to K^+ \\pi^-)/\\mathcal{B}(D^0 \\to K^- \\pi^+)$",
          "comment": "DCS D0 to K+ pi- / CF D0 to K- pi+ branching fraction ratio as determined by HFLAV (includes DCS anti-D0 to K- pi+ in numerator and CF anti-D0 to K+ pi- in denominator). Otherwise known as R_D. See chapter 9.1 of https://arxiv.org/pdf/2411.18639 and compare to D0 to K+ pi- via via DCS Decay Mode Summary in the PDG (PDG ID: S032.362).",
          "sources": [
            {
              "name": "HFLAV:2026Feb",
              "value": {
                "central": 0.00344,
                "uncertainty": 2e-05
              },
              "references": {
                "bibtex": "HeavyFlavorAveragingGroupHFLAV:2024ctg",
                "pub": "Phys. Rev. D 113 (2026) 012008",
                "doi": "10.1103/x87q-tld5",
                "arxiv": "2411.18639",
                "url": "https://doi.org/10.1103/x87q-tld5"
              }
            }
          ]
        },
        {
          "name": "BR_D0_K-_pi+",
          "latexname": "$\\mathcal{B}(D^0 \\to K^- \\pi^+)$",
          "comment": "CF D0 to K- pi+ branching fraction as determined by HFLAV.",
          "sources": [
            {
              "name": "HFLAV:2026Feb",
              "value": {
                "central": 0.03999,
                "statistical": 5.5e-05,
                "systematic": 0.00044697203491941194
              },
              "references": {
                "bibtex": "HeavyFlavorAveragingGroupHFLAV:2024ctg",
                "pub": "Phys. Rev. D 113 (2026) 012008",
                "doi": "10.1103/x87q-tld5",
                "arxiv": "2411.18639",
                "url": "https://doi.org/10.1103/x87q-tld5"
              }
            }
          ]
        }
      ]
    }
  ]
}