{
    "title" : "sin(2β) ≡ sin(2φ1)",
    "measurement" : 
    {
        "name" : "J/ψKS (ηCP=-1)",
        "inputs" : 
        [
            {"name": "BaBar", 
             "value": {"central" : 0.657, "statistical" : 0.036, "systematic" : 0.012, "unit": "rad"}, 
             "comment": "N(BB)=465M", 
             "References" : [{"arxiv": "0902.1708", "publication": "PRD 79 (2009) 072009", "doi" : "10.1103/PhysRevD.79.072009"}]},
            {"name": "BELLE", 
             "value": {"central" : 0.670, "statistical" : 0.029, "systematic" : 0.013, "unit": "rad"}, 
             "comment": "N(BB)=772M", 
             "References" : [{"arxiv": "1201.4643", "publication": "PRL 108 (2012) 171802", "doi" : "10.1103/PhysRevLett.108.171802"}]},
             {"name": "LHCb", 
             "value": {"central" : 0.731, "statistical" : 0.035, "systematic" : 0.020, "unit": "rad"}, 
             "comment": "∫Ldt=3 fb−1, J/ψ to muons", 
             "References" : [{"arxiv": "1503.07089", "publication": "PRL 115 (2015) 031601", "doi" : "PhysRevLett.115.031601"}]},
             {"name": "LHCb",
             "value": {"central" : 0.83, "statistical" : 0.08, "systematic" : 0.01, "unit": "rad"},
             "comment": "∫Ldt=3 fb−1, J/ψ to electrons",
             "References" : [{"arxiv": "1709.03944", "publication": "JHEP 11 (2017) 170", "doi" : "10.1007/JHEP11(2017)170"}]}
        ],
        "average" : {"value": {"central" : 0.695, "uncertainty" : 0.019, "unit": "rad"},
                     "comment" : "0.018 stat-only"}
    }
}