{"paper":{"title":"Probing the Electroweak Phase Transition in the Flipped Two-Higgs-Doublet Model at the LHC","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"The high-luminosity LHC can detect multi-bottom signals from heavy Higgs bosons in the flipped two-Higgs-doublet model that support strong first-order electroweak phase transitions.","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Jidong Du, Wei Su, Yun Jiang","submitted_at":"2026-05-13T16:47:41Z","abstract_excerpt":"We study the CP-conserving flipped (Type-Y) Two-Higgs-Doublet Model (2HDM) in the large-$\\tan\\beta$ regime ($\\tan\\beta>30$), focusing on its implications for electroweak phase transitions (EWPTs) and LHC phenomenology. Viable parameter regions supporting a strong first-order EWPT fall into two heavy-Higgs hierarchies: (A) $m_{H^\\pm}\\simeq m_H<m_A$ and (B) $m_H<m_{H^\\pm} \\simeq m_A$, both featuring a heaviest CP-odd Higgs $A$. Scenario~A typically proceeds via one-step transitions with lower nucleation temperatures, while Scenario~B allows one-step or two-step transitions, opening the decay $A\\"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"These results indicate that the HL-LHC can realistically probe the BSM Higgs sector responsible for a strong first-order EWPT and provide insight into the underlying phase transition dynamics in the flipped 2HDM.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"The viability of the identified parameter regions and the quoted signal significances depend on the accuracy of the thermal effective potential calculations and the BDT-based multivariate analysis selections, which are not detailed in the abstract.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"In the flipped 2HDM with tan beta >30, two heavy Higgs mass hierarchies enable strong first-order EWPTs, with HL-LHC reaching significances up to z~100 in 4b channels and z~6.8 in cascades for scenario B.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"The high-luminosity LHC can detect multi-bottom signals from heavy Higgs bosons in the flipped two-Higgs-doublet model that support strong first-order electroweak phase transitions.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"bf09e3fdc761a313f8191bcdb5fe1aa8a0f6fdce8a139acdd3901d60f2c4e7e4"},"source":{"id":"2605.13939","kind":"arxiv","version":1},"verdict":{"id":"94eef62e-bcef-4cc1-96da-05c0e4286155","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-15T02:45:11.413490Z","strongest_claim":"These results indicate that the HL-LHC can realistically probe the BSM Higgs sector responsible for a strong first-order EWPT and provide insight into the underlying phase transition dynamics in the flipped 2HDM.","one_line_summary":"In the flipped 2HDM with tan beta >30, two heavy Higgs mass hierarchies enable strong first-order EWPTs, with HL-LHC reaching significances up to z~100 in 4b channels and z~6.8 in cascades for scenario B.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"The viability of the identified parameter regions and the quoted signal significances depend on the accuracy of the thermal effective potential calculations and the BDT-based multivariate analysis selections, which are not detailed in the abstract.","pith_extraction_headline":"The high-luminosity LHC can detect multi-bottom signals from heavy Higgs bosons in the flipped two-Higgs-doublet model that support strong first-order electroweak phase transitions."},"references":{"count":67,"sample":[{"doi":"","year":2012,"title":"Observation of a new particle in the search for the Standard Model Higgs boson with the AT- LAS detector at the LHC","work_id":"737be771-b99c-4648-8fbd-f77f11440223","ref_index":1,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2012,"title":"Observation of a New Boson at a Mass of 125 GeV with the CMS Experiment at the LHC","work_id":"51cd0a3f-978b-4ea5-9e94-7c11b0373fd8","ref_index":2,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2013,"title":"C. L. Bennett et al. Nine-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Final Maps and Results. Astrophys. J. Suppl., 208:20, 2013","work_id":"2f20813a-931f-4ad5-ae05-51aca644d5a9","ref_index":3,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2012,"title":"Morrissey and Michael J","work_id":"4f34f5bc-6166-496c-a023-85d271ebfb68","ref_index":4,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":1967,"title":"A. D. Sakharov. Violation of CP Invariance, C asymme- try, and baryon asymmetry of the universe. Pisma Zh. Eksp. Teor. Fiz., 5:32–35, 1967","work_id":"0ba09ec6-7d99-4668-a985-06115ee402cb","ref_index":5,"cited_arxiv_id":"","is_internal_anchor":false}],"resolved_work":67,"snapshot_sha256":"48ae49424dda18f56259ebf41689da6ddb81a81d3e2f281480130581991d9df6","internal_anchors":0},"formal_canon":{"evidence_count":2,"snapshot_sha256":"dffc52cf2e0639dd6eb0fb7136210d0841cef11261c6edb4fc8b4d45461daf0b"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}