{"paper":{"title":"Observation of enhanced rate coefficients in the H$_2^+$ + H$_2$ $\\rightarrow$ H$_3^+$ + H reaction at low collision energies","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.chem-ph","authors_text":"Fr\\'ed\\'eric Merkt, Johannes Deiglmayr, Katharina H\\\"oveler, Otto Schullian, Pitt Allmendinger","submitted_at":"2016-12-21T16:53:29Z","abstract_excerpt":"The energy dependence of the rate coefficient of the H$_2^+\\ + {\\rm H}_2 \\rightarrow {\\rm H}_3^+ + {\\rm H}$ reaction has been measured in the range of collision energies between $k_\\mathrm{B}\\cdot 10$ K and $k_\\mathrm{B}\\cdot 300$ mK. A clear deviation of the rate coefficient from the value expected on the basis of the classical Langevin-capture behavior has been observed at collision energies below $k_\\mathrm{B}\\cdot 1$ K, which is attributed to the joint effects of the ion-quadrupole and Coriolis interactions in collisions involving ortho-H$_2$ molecules in the $j = 1$ rotational level, whic"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1612.07232","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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"}