Light gluinos and heavy squarks confront the collider data
1985; Elsevier BV; Volume: 261; Linguagem: Inglês
10.1016/0550-3213(85)90589-9
ISSN1873-1562
Autores Tópico(s)Black Holes and Theoretical Physics
ResumoWe analyze the missing transverse momentum events seen at the CERN pp collider within a supersymmetric model with light gluinos, m(g̃) ∼ few GeV, and medium heavy squarks, m(q̃) ⪖ 80 GeV. Gluino fragmentation, previously ignored, is crucial to the analysis, e.g., the published limit m(g̃) > 40 GeV does not survive. A model with m(g̃) ∼ 3 GeV, m(q̃) ∼ 80 GeV, successfully describes all features of the data, including the strikingly small mass of the observed monojets. A model with m(g̃) ∼ 7 GeV, O(1 TeV) > m(q̃) > 150 GeV is also acceptable. If one believes in relations between supermasses derived from models incorporating supergravity, the masses we "determine" lead to a contradiction with cosmological constraints on relic photinos. We choose to doubt these mass relations and we suggest further collider tests of models with light gluinos.
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