{"paper":{"title":"New limits on $\\mathbf{\\tan\\beta}$ for 2HDMs with $\\mathbf{Z_2}$ symmetry","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Dipankar Das","submitted_at":"2015-01-12T11:47:31Z","abstract_excerpt":"In two-Higgs-doublet models with exact $Z_2$ symmetry, putting $m_h \\simeq 125$ GeV at the alignment limit, the following limits on the heavy scalar masses are obtained from the conditions of unitarity and stability of the scalar potential: $m_H,~m_A,~m_{H^+} < 1$ TeV and $1/8 <\\tan\\beta <8$. The constraints from $b \\to s \\gamma$ and neutral meson mass differences, when superimposed on the unitarity constraints, put a tighter lower limit on $\\tan\\beta$ depending on $m_{H^+}$. It has also been shown that larger values of $\\tan\\beta$ can be allowed by introducing soft breaking term in the potent"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1501.02610","kind":"arxiv","version":2},"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"}