Squark Mass Measurement in the Long-lived Stau Scenario at the LHC

Understand

The long-lived stau scenario is an interesting possibility at the LHC.

• We study squark mass measurements in this scenario; in particular, we show that left- and right-handed squark masses are both measurable.
• In SUSY events, multiple jets are expected, which become a source of combinatorial backgrounds.
• In order to reduce such backgrounds a hemisphere analysis is applied, and we discuss mass measurements of squarks in decay modes of left-handed squark into quark + (neutral / charged) Wino and also right-handed squark into quark + Bino.