{"paper":{"title":"Exploiting CP-asymmetries in rare charm decays","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"Gudrun Hiller, Hector Gisbert, Marcel Golz, Rigo Bause","submitted_at":"2020-04-02T18:06:07Z","abstract_excerpt":"We analyze patterns from CP-violating new physics (NP) in hadronic and semileptonic rare charm $\\vert \\Delta c \\vert=\\vert \\Delta u\\vert=1$ transitions. Observation of direct CP-violation in hadronic decays, as in $\\Delta A_{\\text{CP}}$, provides opportunities for $c \\to u \\,\\ell^+ \\ell^-$, $\\ell=e,\\mu$ transitions, and vice versa. For the concrete case of flavorful, anomaly-free $Z^\\prime$-models a NP-interpretation of $\\Delta A_{\\text{CP}}$ suggests measurable CP-asymmetries in semileptonic decays such as $D \\to \\pi\\, \\ell^+ \\ell^-$ or $D \\to \\pi \\pi\\, \\ell^+ \\ell^-$. Conversely, an observat"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2004.01206","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2004.01206/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}