{"arxiv_id":"hep-ph/0305212","title":"Phenomenological Constraints on Patterns of Supersymmetry Breaking","abstract":"Specific models of supersymmetry breaking predict relations between the trilinear and bilinear soft supersymmetry breaking parameters A_0 and B_0 at the input scale. In such models, the value of tan beta can be calculated as a function of the scalar masses m_0 and the gaugino masses m_{1/2}, which we assume to be universal. The experimental constraints on sparticle and Higgs masses, b to s gamma decay and the cold dark matter density Omega_{CDM} h^2 can then be used to constrain tan beta in such specific models of supersymmetry breaking. In the simplest Polonyi model with A_0 = (3 - sqrt{3})m_0 = B_0 + m_0, we find 11 < tan beta < 20 (tan beta ~ 4.15) for mu > 0 (mu < 0). We also discuss other models with A_0 = B_0 + m_0, finding that only the range -1.9 < A_0/m_0 < 2.5 is allowed for mu > 0, and the range 1.25 < A_0/m_0 < 4.8 for mu < 0. In these models, we find no solutions in the rapid-annihilation `funnels' or in the `focus-point' region. We also discuss the allowed range of tan beta in the no-scale model with A_0 = B_0 = 0. In all these models, most of the allowed regions are in the chi - stau_1 coannihilation `tail'.","primary_cat":"hep-ph","cross_cats":["astro-ph"],"submitted_at":"2003-05-20T16:48:50+00:00","latest_version":1,"source":"arxiv","source_label":"arXiv","source_url":null,"has_pdf":true,"has_source":false,"verdict":"CONDITIONAL","confidence":"MODERATE","one_line_summary":"For minimal supergravity and no-scale breaking patterns, the relations A0 = B0 + m0 (or A0 = B0 = 0) plus LEP, b to s gamma and WMAP constraints restrict tan beta to narrow ranges, for example 11 to 20 in the Polonyi model with positive mu.","novelty_score":4.0,"correctness_risk":"medium","formal_verification":"none","upvotes":0,"downvotes":0,"pith_score":0,"inbound_count":20,"_links":{"html":"https://pith.science/paper/hep-ph/0305212","verdict":"/api/v1/verdicts/hep-ph/0305212"}}