Matches in SemOpenAlex for { <https://semopenalex.org/work/W1582219713> ?p ?o ?g. }
- W1582219713 endingPage "4616" @default.
- W1582219713 startingPage "4595" @default.
- W1582219713 abstract "In this paper we discuss possible signatures for the production of scalar ${stackrel{ifmmode tilde{}else ~{}fi{}}{t}}_{1}{stackrel{ifmmode tilde{}else ~{}fi{}}{t}}_{1}^{*}$ (top squarkonium) bound states ${ensuremath{sigma}}_{{stackrel{ifmmode tilde{}else ~{}fi{}}{t}}_{1}}$ at hadron colliders, where ${stackrel{ifmmode tilde{}else ~{}fi{}}{t}}_{1}$ is the lighter scalar top eigenstate. We first study the decay of ${ensuremath{sigma}}_{{stackrel{ifmmode tilde{}else ~{}fi{}}{t}}_{1}}$; explicit expressions are given for all potentially important decay modes. If ${stackrel{ifmmode tilde{}else ~{}fi{}}{t}}_{1}$ has unsuppressed two-body decays, they will always overwhelm the annihilation decays of ${ensuremath{sigma}}_{{stackrel{ifmmode tilde{}else ~{}fi{}}{t}}_{1}}$. Among the latter, we find that usually either the $mathrm{gg}$ or $mathrm{hh}$ final state dominates, depending on the size of the off-diagonal entry of the top squark mass matrix; $h$ is the lighter neutral scalar Higgs boson of the minimal supersymmetric model. If ${m}_{{ensuremath{sigma}}_{stackrel{ifmmode tilde{}else ~{}fi{}}{t}}}$ happens to be close to the mass of one of the neutral scalar Higgs bosons, $Qoverline{Q}$ final states dominate ($Q=b or t$). ${W}^{+}{W}^{ensuremath{-}}$ and $mathrm{ZZ}$ final states are subdominant. We argue that ${ensuremath{sigma}}_{{stackrel{ifmmode tilde{}else ~{}fi{}}{t}}_{1}}ensuremath{rightarrow}ensuremath{gamma}ensuremath{gamma}$ decays offer the best signal for top squarkonium production at hadron colliders. The Fermilab Tevatron should be able to close the light top squark window left open by CERN LEP searches, but its mass reach is limited to ${m}_{{ensuremath{sigma}}_{stackrel{ifmmode tilde{}else ~{}fi{}}{t}}}ensuremath{le}90$ GeV. In contrast, at the CERN LHC one should ultimately be able to probe the region ${m}_{{ensuremath{sigma}}_{stackrel{ifmmode tilde{}else ~{}fi{}}{t}}}ensuremath{le}700$ GeV, if the $mathrm{hh}$ partial width is not too large. We also comment on the feasibility of searching for ${ensuremath{sigma}}_{{stackrel{ifmmode tilde{}else ~{}fi{}}{t}}_{1}}$ production at hadron colliders in the $mathrm{ZZ}$, $Zensuremath{gamma}$, and ${ensuremath{tau}}^{+}{ensuremath{tau}}^{+}{ensuremath{tau}}^{ensuremath{-}}{ensuremath{tau}}^{ensuremath{-}}$ final states, and briefly mention ${ensuremath{sigma}}_{{stackrel{ifmmode tilde{}else ~{}fi{}}{t}}_{1}}$ production at $ensuremath{gamma}ensuremath{gamma}$ colliders." @default.
- W1582219713 created "2016-06-24" @default.
- W1582219713 creator A5026386506 @default.
- W1582219713 creator A5069406937 @default.
- W1582219713 date "1994-05-01" @default.
- W1582219713 modified "2023-09-26" @default.
- W1582219713 title "Production and decay of scalar top squarkonium bound states" @default.
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