{"paper":{"title":"Angular observables of the four-fold $B \\to K_{1}(1270,1400)(\\to V P) \\ell^{+}\\ell^{-}$ decays in and beyond the Standard Model","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Abdur Rehman, Faisal Munir Bhutta, Ishtiaq Ahmed, M. Jamil Aslam, Saadi Ishaq","submitted_at":"2024-10-27T23:35:05Z","abstract_excerpt":"Recent measurements of the lepton flavor universality ratios $R^{\\mu e}_{K}$ and $R^{\\mu e}_{K^*}$ in $B\\to \\left(K, K^*\\right)\\mu^{+}\\mu^{-}\\left(e^+e^-\\right)$ at LHCb align with the Standard Model predictions, necessitating search for the complementary decay modes. In this context, we derive the angular decay distributions of the four-fold $B \\to K_{1}(1270,1400)(\\to V P) \\mu^{+}\\mu^{-}$ decays, where $K_1 $ is an axial-vector meson, $V=\\rho, K^{\\ast}$, and $P=K, \\pi$. Considering the weak effective Hamiltonian with vector and axial-vector new physics operators, and employing the helicity f"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2410.20633","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/2410.20633/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"}