{"record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.topic/1","content_sha256":"a14d58ea604dde6c4419c99b6349587a3be233a9cc6267fc095bccaa9ae64ca5","created":"2026-10-03T07:17:51Z","files":[],"origin":{"assisted_by":[],"kind":"seed"},"parents":[],"salt":"8e113f08e9a1e1ba56df6d878a04cd7cf9683d01648d411d56b40d10c27b8d95","schema":"pubphys.record/2","site":"pubphys.com","target":null,"type":"topic"},"content":{"external_id":"hep.flavor-puzzle","field":"hep","n":"1","review_cite":"F. Feruglio, Pieces of the flavour puzzle, European Physical Journal C, 2015","review_link":"https://doi.org/10.1140/epjc/s10052-015-3576-5","review_verified":"true","summary":"Matter particles come in three copies (generations) with identical charges but masses spread over more than ten powers of ten. Nobody knows why there are three, or why the masses and mixings take their values.","title":"Flavor puzzle: masses, mixing and three generations","topic_ref":null,"why":"Most of the SM's free parameters are flavor parameters, and their pattern is unexplained."},"attested":{"attestation":{"batch":null,"client_id":null,"id_token_sha256":null,"kind":"platform"},"record_hash":"bf83146b3162b33e3e47622ed38c05336b0c5694b551ceeb82b1dcacaf745590","schema":"pubphys.attested/1"},"envelope":{"attested_hash":"7154636eb15fe4701f87e14f6020ed8711c60d2bea87f88b08a8a8b6f139eb62","platform_signature":{"key_id":"c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da","sig":"q8vV38cr8OqGbIuBRyE60FPtmqj48zsQHIJylbSVf-bNChyyx7274tPMQVferMeN4jhUyf2tU6LKJFc3nwXxBQ"},"schema":"pubphys.envelope/1"},"record_hash":"bf83146b3162b33e3e47622ed38c05336b0c5694b551ceeb82b1dcacaf745590","leaf_index":242}