{"paper":{"title":"Impact of the quenching of $g_{\\rm A}$ on the sensitivity of $0\\nu\\beta\\beta$ experiments","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-th","authors_text":"Jouni Suhonen","submitted_at":"2017-08-31T08:08:02Z","abstract_excerpt":"Detection of the neutrinoless $\\beta\\beta$ ($0\\nu\\beta\\beta$) decay is of high priority in the particle- and neutrino-physics communities. The detectability of this decay mode is strongly influenced by the value of the weak axial-vector coupling constant $g_{\\rm A}$. The recent nuclear-model analyses of $\\beta$ and $\\beta\\beta$ decays suggest that the value of $g_{\\rm A}$ could be dramatically quenched, reaching ratios of $g^{\\rm free}_{\\rm A}/g_{\\rm A}\\approx 4$, where $g^{\\rm free}_{\\rm A}=1.27$ is the free, neutron-decay, value of $g_{\\rm A}$. The effects of this quenching appear devastatin"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.09604","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"}