Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2002-04-08
Phys.Rev. D66 (2002) 115004
Physics
High Energy Physics
High Energy Physics - Phenomenology
4 pages in PRL format, 4 Postscript figures, uses revtex4
Scientific paper
10.1103/PhysRevD.66.115004
In the minimal supersymmetric standard model (MSSM) properties of the third generation sfermions are important from the viewpoint of discriminating the SUSY breaking models and in the determination of the Higgs boson mass. If gluinos are copiously produced at CERN LHC, gluino decays into tb through stop and sbottom can be studied using hadronic decays of the top quark. The kinematical endpoint of the gluino decays can be evaluated using a W sideband method to estimate combinatorial backgrounds. This implies that fundamental parameters related to the third generation squarks can be reliably measured. The top-quark polarization dependence in the decay process may also be extracted by looking at the b jet distribution near the kinematical endpoint.
Hisano Junji
Kawagoe Kiyotomo
Kitano Ryuichiro
Nojiri Mihoko M.
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