{"paper":{"title":"Shedding light on the nature of $\\phi(2170)$ with the parton and hadron cascade model PACIAE","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["nucl-th"],"primary_cat":"hep-ph","authors_text":"An-Ke Lei, Ben-Hao Sa, Bo Feng, Dai-Mei Zhou, Hua Zheng, Jian Cao, Li-Lin Zhu, Wen-Chao Zhang, Ya-Hui Hou, Yu-Liang Yan, Zhi-Lei She","submitted_at":"2026-07-01T15:34:29Z","abstract_excerpt":"The nature of $\\phi(2170)$ remains open. We simulate its production in $e^+e^-$ collisions at $\\sqrt{s}=4.95$ GeV using PACIAE 4.0, which sequentially generates the final partonic state (FPS) and the final hadronic state (FHS). While previous studies have interpreted $\\phi(2170)$ as an $ss\\bar{s}\\bar{s}$ or $u\\bar{u}s\\bar{s}$ state, the $U(1)$ anomaly coupling allows non-strange quarks to couple to a vector $s\\bar{s}$ component via soft-gluon interactions. This motivates us to also explore the $d\\bar{d}s\\bar{s}$ tetraquark configuration. In addition, we consider $\\phi(2170)$ as an excited stra"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.01075","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/2607.01075/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"}