{
  "abstract": "Penning ionization allows {\\it in situ} generation of ionic complexes to launch vibrational relaxation and dissociation dynamics for rare gas--H$_2^+$/HD$^+$ complexes. The ensuing translational kinetic energy release (TKER) spectra characterizing the diatomic cation are a particularly sensitive way to probe the long range part of the intermolecular interactions. TKER distributions from quasi-classical trajectory (QCT) simulations for the Ne--H$_2^+$ and Ne--HD$^+$ complexes quantitatively match measured positions and relative intensities of most experimentally observed features and are also on par with time-dependent quantum simulations. Specifically, the QCT-simulations allow to separate signatures arising from H$_2^+$/HD$^+$ relaxation into different final vibrational states, such as for $(v=2) \\rightarrow (v' = 0/1 )$. Trajectory-resolved QCT analysis also provides mechanistic interpretations of the spatial and time-dependent dynamics underlying the TKER distributions. Rare gas--H$_2^+$/HD$^+$ complex lifetimes directly correlate with the final rotational quantum number $j'$ of the diatomic. Low-$j'$ products are associated primarily with an initial axial approach of the rare gas atom, whereas formation of higher-$j'$ states predominantly results from an initial T-shaped approach geometry.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.23412",
  "author_total": 6,
  "authors": [
    {
      "name": "Meenu Upadhyay"
    },
    {
      "name": "Baruch Margulis"
    },
    {
      "name": "Octavio Roncero"
    },
    {
      "name": "Karl Horn"
    },
    {
      "name": "Edvardas Narevicius"
    },
    {
      "name": "Markus Meuwly"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/c8ja98y62qx9e.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.23412",
  "fulltext_url": null,
  "id": "c8ja98y62qx9e",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.23412",
  "language": null,
  "licence": "CC-BY-NC-SA-4.0",
  "licence_label": "CC BY-NC-SA 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "physics.chem-ph"
    ],
    [
      "openalex",
      "3107|Atomic and Molecular Physics"
    ]
  ],
  "openalex": "W7214004257",
  "pdf_url": "https://arxiv.org/pdf/2609.23412",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-20",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/c8ja98y62qx9e.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:23:19Z",
      "native_id": "2609.23412",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.23412"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "arxiv:physics.chem-ph",
      "subfield": "physical"
    }
  ],
  "title": "Quantitative Classical Relaxation Dynamics of Penning-Ionized He/Ne--H$_2^+$/HD$^+$ Complexes",
  "title_text": "Quantitative Classical Relaxation Dynamics of Penning-Ionized He/Ne--H_2^+/HD^+ Complexes",
  "type": "preprint",
  "updated_at": "2026-10-30T12:23:19Z",
  "url": "https://research.draconitic.com/paper/c8ja98y62qx9e",
  "venue": "arXiv",
  "versions": []
}