Search for Scalar Top Quarks and Higgsino-Like Neutralinos

The region with M (the mass difference between stop and neutralino) < 70 GeV is excluded for the first time at stop mass of less than 210 GeV. The author also excludes the signals with M > 120 GeV up to 600 GeV of stop mass with neutralino mass of less than 280 GeV.

Regiunea cu M (diferenta de masa intre oprire si neutralino) <70 GeV este exclusa pentru prima data la masa de oprire mai mica de 210 GeV. De asemenea, autorul exclude semnalele cu M> 120 GeV pana la 600 GeV de masa stop cu masa neutralino mai mica de 280 GeV.