{"paper":{"title":"Comprehensive Ab Initio Quantum Computations of CO$_{\\rm 2}$-H$_{\\rm 2}$ and CO$_{\\rm 2}$-He Collisional Properties","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"physics.chem-ph","authors_text":"Cooper Loughlin, Deborah Woods, Iouli E. Gordon, Jeremy Kepner, Julien de Wit, Laurent Wiesenfeld, Nejmeddine Ja\\\"idane, Prajwal Niraula, Robert J. Hargreaves","submitted_at":"2025-10-01T18:12:24Z","abstract_excerpt":"We present comprehensive \\textsl{ab initio} fully quantum calculations of CO$_{\\rm 2}$--H$_{\\rm 2}$ and CO$_{\\rm 2}$--He collisional properties. Our framework combines CCSD(T) potential-energy-surface calculations with close-coupling dynamical scattering in the \\YUMI~framework to derive elastic and inelastic cross sections, rate coefficients, and pressure broadening parameters. We characterize the rotational dependence of the broadening coefficients up to $j=25$ for CO$_{\\rm 2}$--H$_{\\rm 2}$ and $j=40$ for CO$_{\\rm 2}$--He, and their temperature dependence over 40--800 K. We also provide Pad\\'"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2510.03327","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2510.03327/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"}