{"paper":{"title":"Cosmological Implications of the Supergravity Tracking Potential","license":"","headline":"","cross_cats":["gr-qc","hep-ph","hep-th"],"primary_cat":"astro-ph","authors_text":"Jerome Martin, Philippe Brax","submitted_at":"1999-12-01T02:16:54Z","abstract_excerpt":"It is demonstrated that any realistic model of quintessence should be based on Supergravity since, when the scalar field is on tracks today, $Q\\approx m_{\\rm Pl}$. This improves the agreement between theoretical predictions and the current observations. In particular, a generic property is that ratio $\\omega_{\\rm Q}\\equiv p_{\\rm Q}/\\rho_{\\rm Q}$ is pushed towards -1. A string-inspired model is proposed where the potential is given by $V(Q)= \\frac{\\Lambda ^{4+\\alpha}}{Q^{\\alpha}}e^{\\frac{\\kappa}{2}Q^2}$. The model predicts $\\omega_{\\rm Q}\\approx -0.82$, a value less that one sigma from the curr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9912005","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/astro-ph/9912005/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"}