{"paper":{"title":"Correlating $B_q^0 \\to \\mu^+\\mu^-$ and $K_L \\to \\pi^0\\nu\\bar\\nu$ Decays with Four Generations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Fanrong Xu, Masaya Kohda, Wei-Shu Hou","submitted_at":"2014-11-07T17:21:03Z","abstract_excerpt":"The long-awaited $B_s\\to \\mu^+\\mu^-$ mode has finally been observed at rate consistent with Standard Model, albeit lower by 1.2$\\sigma$. There is some hint for New Physics in the rarer $B_d^0 \\to \\mu^+\\mu^-$ decay, especially if the currently 2.2$\\sigma$-enhanced central value persists with more data. The measurement of $CP$ violating phase $\\phi_s$, via both $B_s\\to J/\\psi K\\bar K$ and $J/\\psi\\pi\\pi$ modes, has reached Standard Model sensitivity. These measurements stand major improvement when LHC enters Run 2. Concurrently, the $K_L\\to\\pi^0\\nu\\bar\\nu$ and $K^+\\to\\pi^+\\nu\\bar\\nu$ modes are be"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1411.1988","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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"}