{"paper":{"title":"Wavelength-driven photoelectron momentum tilt in XUV Ionization","license":"http://creativecommons.org/licenses/by/4.0/","headline":"The radial node in argon's 3p orbital causes reversal of the photoelectron momentum tilt in XUV ionization via d-wave interference.","cross_cats":[],"primary_cat":"physics.atom-ph","authors_text":"Amol R. Holkundkar, Neha Kukreti","submitted_at":"2026-05-13T11:55:38Z","abstract_excerpt":"We investigate how atomic structure influences photoelectron momentum distributions (PMDs) in single-photon ionization by a linearly polarized extreme-ultraviolet (XUV) pulse. We demonstrate that the PMD tilt is governed not only by the magnetic quantum number but also by the radial structure of the bound atomic orbital. While neon exhibits a smooth wavelength dependence of the PMD tilt, argon displays a non-monotonic behavior characterized by suppression and reversal of the tilt at a critical wavelength. A partial-wave analysis reveals that this behavior arises from interference between $s$- "},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"A partial-wave analysis reveals that this behavior arises from interference between s- and d-wave channels, with the reversal originating from a minimum in the d-wave radial dipole matrix element induced by the radial node in the argon 3p orbital.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"The numerical or analytic treatment of the continuum waves and dipole matrix elements accurately isolates the radial-node effect without significant contamination from other partial waves, correlation, or numerical artifacts.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"Argon XUV ionization exhibits wavelength-driven reversal of PMD tilt from radial-node-induced minimum in the d-wave channel, unlike neon's smooth dependence.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"The radial node in argon's 3p orbital causes reversal of the photoelectron momentum tilt in XUV ionization via d-wave interference.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"2a5081d7b1bbf54dbedb9e79afa11b9f760b8eca75fa7c540361f818ebd7373d"},"source":{"id":"2605.13400","kind":"arxiv","version":1},"verdict":{"id":"bf80c733-f000-426b-8fe5-5be54a5c771e","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-14T18:40:03.088171Z","strongest_claim":"A partial-wave analysis reveals that this behavior arises from interference between s- and d-wave channels, with the reversal originating from a minimum in the d-wave radial dipole matrix element induced by the radial node in the argon 3p orbital.","one_line_summary":"Argon XUV ionization exhibits wavelength-driven reversal of PMD tilt from radial-node-induced minimum in the d-wave channel, unlike neon's smooth dependence.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"The numerical or analytic treatment of the continuum waves and dipole matrix elements accurately isolates the radial-node effect without significant contamination from other partial waves, correlation, or numerical artifacts.","pith_extraction_headline":"The radial node in argon's 3p orbital causes reversal of the photoelectron momentum tilt in XUV ionization via d-wave interference."},"references":{"count":44,"sample":[{"doi":"","year":2009,"title":"F. Krausz and M. Ivanov, Rev. Mod. Phys.81, 163 (2009)","work_id":"e7ec5697-6e6f-4422-8836-78b09aa8198c","ref_index":1,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2007,"title":"P. B. Corkum and F. Krausz, Nat. Phys.3, 381 (2007)","work_id":"9409efe0-6017-491b-b883-2c1bbc6acffd","ref_index":2,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2017,"title":"M. Nisoli, P. Decleva, F. Calegari, A. Palacios, and F. Martín, Chem. Rev.117, 10760 (2017)","work_id":"15d116ad-efb4-46f7-af1b-56519c3f654c","ref_index":3,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":1994,"title":"P. B. Corkum, Phys. Rev. Lett.71, 1994 (1993)","work_id":"774f3ad7-022c-43a4-8c0b-44e41afa21e1","ref_index":4,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":1994,"title":"M. Lewenstein, P. Balcou, M. Y . Ivanov, A. L’Huillier, and P. B. Corkum, Phys. Rev. A49, 2117 (1994)","work_id":"773421d0-b57d-4b35-86f0-5222b8ba0b7d","ref_index":5,"cited_arxiv_id":"","is_internal_anchor":false}],"resolved_work":44,"snapshot_sha256":"03756a967ba2f5bf2e1a1ceee74c66ca71824e2b3f576d97b21f260028f73430","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"}