Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1999-04-06
Phys.Rev.Lett.83:1731-1734,1999
Physics
High Energy Physics
High Energy Physics - Phenomenology
9 pages, 3 figures; Fig.1 corrected, discussion generalized, references added
Scientific paper
10.1103/PhysRevLett.83.1731
In supersymmetric models, Winos, partners of the SU(2) gauge bosons, may be the lightest supersymmetric particles (LSPs). For generic parameters, charged and neutral Winos are highly degenerate. Charged Winos travel macroscopic distances, but can decay to neutral Winos and extremely soft leptons or pions before reaching the muon chambers, thereby circumventing conventional trigger requirements based on energetic decay products or muon chamber hits. However, these charginos are detectable, and can be triggered on when produced in association with jets. In addition, we propose a new trigger for events with a high p_T track and low hadronic activity. For Tevatron Run II with luminosity 2 fb^-1, the proposed searches can discover Winos with masses up to 300 GeV and explore a substantial portion of the parameter space in sequestered sector models.
Feng Jonathan L.
Moroi Takeo
Randall Lisa
Strassler Matthew
Su Shufang
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