{"paper":{"title":"Nucleon decay matrix elements with the Wilson quark action: an update","license":"","headline":"","cross_cats":[],"primary_cat":"hep-lat","authors_text":"A. Ukawa, K-I. Ishikawa, K. Kanaya, M. Fukugita, M. Okawa, N. Ishizuka, N. Tsutsui, N. Yamada, S. Aoki, S. Hashimoto, S. Kaya, S. Tominaga, T. Kaneda, T. Onogi, T. Yoshi\\'e (JLQCD Collaboration), Y. Iwasaki, Y. Kuramashi","submitted_at":"1999-10-04T10:31:43Z","abstract_excerpt":"We present preliminary results of a new lattice computation of hadronic matrix elements of baryon number violating operators which appear in the low-energy effective Lagrangian of (SUSY-)Grand Unified Theories. The contribution of irrelevant form factor which has caused an underestimate of the matrix elements in previous studies is subtracted in this calculation. Our results are 2$\\sim$4 times larger than the most conservative values often employed in phenomenological analyses of nucleon decay with specific GUT models."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-lat/9910009","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":""},"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"}