{"arxiv_id":"hep-ph/0403286","title":"Fermion mixings vs d=6 proton decay","abstract":"It is well known, although sometimes ignored, that not only the d=5 but also d=6 proton decay depends on fermion mixings. In general we study carefully the dependence of d=6 decay on fermion mixings using the effective operator approach. We find that without specifying a theory it is impossible to make clear predictions. Even in a given model, it is often not possible to determine all the physical parameters. We point out that it is possible to make a clear test of any grand unified theory with symmetric Yukawa couplings. We discuss in some detail realistic theories based on SU(5) and SO(10) gauge symmetry.","primary_cat":"hep-ph","cross_cats":["hep-ex"],"submitted_at":"2004-03-29T19:55:02+00:00","latest_version":3,"source":"arxiv","source_label":"arXiv","source_url":null,"has_pdf":true,"has_source":false,"verdict":"CONDITIONAL","confidence":"MODERATE","one_line_summary":"In GUTs with symmetric Yukawa couplings, the d=6 proton decay rates into antineutrinos depend only on two overall coefficients, so measuring two channels fixes the rest.","novelty_score":5.0,"correctness_risk":"medium","formal_verification":"none","upvotes":0,"downvotes":0,"pith_score":0,"inbound_count":23,"_links":{"html":"https://pith.science/paper/hep-ph/0403286","verdict":"/api/v1/verdicts/hep-ph/0403286"}}