{"paper":{"title":"Dressed-quarks and the nucleon's axial charge","arxiv_id":"1207.5300","primary_cat":"nucl-th","submitted_at":"2012-07-23T05:51:21+00:00","version_compiled":"v2"},"notice":"Every quoted sentence is the authors' text from the arXiv listing abstract. Labels and probabilities are the outputs of classifier-1.13-20260917 on the question bank abstract-p1-20260923, exactly as returned. No sentence in this record was written by a language model.","schema":"pith.compiled-record/v0","status":"compiled","abstract":{"source":"arXiv listing abstract v2","sentences":[{"i":0,"p":1.0,"id":"s0","own":false,"role":"background","text":"The nucleon's axial charge, g_A, expresses features that are both fundamental to the strong interaction and crucial to its connection with weak interaction physics.","hedge":{"p":1.0,"label":"asserted"},"own_p":0.05,"main_claim_p":0.04,"quantitative":false,"quantitative_p":0.03,"role_probabilities":{"gap":0.0,"method":0.0,"result":0.0,"background":1.0,"limitation":0.0,"future_work":0.0,"contribution":0.0,"interpretation":0.0}},{"i":1,"p":0.98,"id":"s1","own":true,"role":"result","text":"We show that dynamical chiral symmetry breaking (DCSB) suppresses the axial-charge of a dressed-quark, g_A^q, at infrared momenta.","hedge":{"p":1.0,"label":"asserted"},"own_p":0.91,"main_claim_p":0.5,"quantitative":false,"quantitative_p":0.07,"role_probabilities":{"gap":0.0,"method":0.0,"result":0.98,"background":0.0,"limitation":0.0,"future_work":0.0,"contribution":0.02,"interpretation":0.0}},{"i":2,"p":1.0,"id":"s2","own":false,"role":"interpretation","text":"Since this effect disappears as chiral symmetry is restored, one may argue that g_A vanishes with the restoration of chiral symmetry because no nucleon bound-state survives the associated transition.","hedge":{"p":0.99,"label":"hedged_possibility"},"own_p":0.17,"main_claim_p":0.14,"quantitative":false,"quantitative_p":0.13,"role_probabilities":{"gap":0.0,"method":0.0,"result":0.0,"background":0.0,"limitation":0.0,"future_work":0.0,"contribution":0.0,"interpretation":1.0}},{"i":3,"p":0.55,"id":"s3","own":true,"role":"result","text":"The suppression of g_A^q is shown to be part of an explanation for a 25% reduction of g_A from its nonrelativistic quark-model value.","hedge":{"p":0.98,"label":"asserted"},"own_p":0.83,"main_claim_p":0.24,"quantitative":true,"quantitative_p":0.99,"role_probabilities":{"gap":0.0,"method":0.0,"result":0.55,"background":0.0,"limitation":0.0,"future_work":0.0,"contribution":0.01,"interpretation":0.44}},{"i":4,"p":0.58,"id":"s4","own":false,"role":"result","text":"Critical too, however, is the presence of dressed-quark angular momentum within the nucleon.","hedge":{"p":0.99,"label":"asserted"},"own_p":0.41,"main_claim_p":0.1,"quantitative":false,"quantitative_p":0.03,"role_probabilities":{"gap":0.01,"method":0.0,"result":0.58,"background":0.0,"limitation":0.02,"future_work":0.0,"contribution":0.03,"interpretation":0.36}},{"i":5,"p":0.49,"id":"s5","own":false,"role":"background","text":"The value of g_A^q depends on the kernels of the gap and Bethe-Salpeter equations.","hedge":{"p":1.0,"label":"asserted"},"own_p":0.24,"main_claim_p":0.05,"quantitative":false,"quantitative_p":0.03,"role_probabilities":{"gap":0.0,"method":0.31,"result":0.09,"background":0.49,"limitation":0.0,"future_work":0.0,"contribution":0.08,"interpretation":0.03}},{"i":6,"p":0.98,"id":"s6","own":true,"role":"result","text":"We find that incorporation of essentially nonperturbative effects associated with DCSB into these kernels inflates the value relative to that obtained at leading-order in a widely used truncation of QCD's Dyson-Schwinger equations.","hedge":{"p":1.0,"label":"asserted"},"own_p":0.92,"main_claim_p":0.13,"quantitative":true,"quantitative_p":0.85,"role_probabilities":{"gap":0.0,"method":0.01,"result":0.98,"background":0.0,"limitation":0.0,"future_work":0.0,"contribution":0.01,"interpretation":0.0}},{"i":7,"p":0.99,"id":"s7","own":true,"role":"result","text":"Such corrections also affect the nucleon's axial 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