{"paper":{"title":"A Lattice QCD study of the $\\rho$ resonance","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-lat","authors_text":"Andrew Pochinsky, Constantia Alexandrou, Gumaro Rendon, John W. Negele, Luka Leskovec, Marcus Petschlies, Sergey Syritsyn, Srijit Paul, Stefan Meinel","submitted_at":"2018-10-03T19:36:18Z","abstract_excerpt":"We present a lattice QCD study of the $\\rho$ resonance with $N_f=2+1$ clover fermions at a pion mass of approximately $320$ MeV and lattice size $3.6$ fm. We consider two processes involving the $\\rho$. The first process is elastic scattering of two pions in P-wave with isospin $1$. Using the L\\\"uscher method we determine the scattering phase shift, from which we obtain the $\\rho$ resonance mass and decay width $\\Gamma(\\rho\\to\\pi\\pi)$. The second process is the radiative transition $\\pi\\gamma\\to\\pi\\pi$, where we follow the Brice\\~no-Hansen-Walker-Loud approach to determine the transition ampli"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.01927","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"}