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Heller","submitted_at":"2014-11-10T23:56:57Z","abstract_excerpt":"We compute the leptonic decay constants $f_{D^+}$, $f_{D_s}$, and $f_{K^+}$, and the quark-mass ratios $m_c/m_s$ and $m_s/m_l$ in unquenched lattice QCD. We use the MILC highly improved staggered quark (HISQ) ensembles with four dynamical quark flavors. Our primary results are $f_{D^+} = 212.6(0.4)({}^{+1.0}_{-1.2})\\ \\mathrm{MeV}$, $f_{D_s} = 249.0(0.3)({}^{+1.1}_{-1.5})\\ \\mathrm{MeV}$, and $f_{D_s}/f_{D^+} = 1.1712(10)({}^{+29}_{-32})$, where the errors are statistical and total systematic, respectively. We also obtain $f_{K^+}/f_{\\pi^+} = 1.1956(10)({}^{+26}_{-18})$, updating our previous re"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1411.2667","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2014-11-10T23:56:57Z","cross_cats_sorted":[],"title_canon_sha256":"f37a3c7b567b7b6a8067d0e29494059c01a4dee87533e14a2448653c62a45176","abstract_canon_sha256":"6936feaa9433929144e6cd11ee29eaa557d73e7a28ac10ef90978e708729b916"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:37:53.378152Z","signature_b64":"458dKaRpZ1bcOEqiVlPFsvTELRKhnm6dSuS6JHP9LdK3iYiUY+0uqzKntOG/9MjS1BfjYi/P7cCxv7IoIUYnCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"14b6a6f999f13c302b2179bfb7e6848fd83d0b5892eb2c57c1cdfdee145dcd3a","last_reissued_at":"2026-05-18T02:37:53.377518Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:37:53.377518Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Charmed and light pseudoscalar meson decay constants from HISQ simulations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-lat","authors_text":"A. Bazavov, A.S. Kronfeld, A.X. El-Khadra, C. Bernard, C. Bouchard, C. DeTar, D. Du, D. Toussaint, E.D. Freeland, E. G\\'amiz, E.T. Neil, J. Foley, J. Kim, J. Komijani, J. Laiho, J.N. Simone, L. Levkova, P.B. Mackenzie, R.L. Sugar, R.S. Van de Water, R. Zhou, Steven Gottlieb, U.M. Heller","submitted_at":"2014-11-10T23:56:57Z","abstract_excerpt":"We compute the leptonic decay constants $f_{D^+}$, $f_{D_s}$, and $f_{K^+}$, and the quark-mass ratios $m_c/m_s$ and $m_s/m_l$ in unquenched lattice QCD. We use the MILC highly improved staggered quark (HISQ) ensembles with four dynamical quark flavors. Our primary results are $f_{D^+} = 212.6(0.4)({}^{+1.0}_{-1.2})\\ \\mathrm{MeV}$, $f_{D_s} = 249.0(0.3)({}^{+1.1}_{-1.5})\\ \\mathrm{MeV}$, and $f_{D_s}/f_{D^+} = 1.1712(10)({}^{+29}_{-32})$, where the errors are statistical and total systematic, respectively. 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