Speaker
Dr
Kazuki Sakurai
(Cambridge University)
Description
A method is proposed for determining the masses of the new particles in collider events containing a pair of effectively identical decay chains. By first determining the upper edge of the dilepton invariant mass spectrum, we reduce the problem to a curve for each event in the 3-dimensional space of
mass-squared differences. A statistical approach is applied to take account of mismeasurement
of jet and missing momenta. The method is easily visualized and rather robust against
combinatorial ambiguities and finite detector resolution. It can be successful even for small
event samples, since it makes full use of the kinematical information from every event.
Primary author
Dr
Kazuki Sakurai
(Cambridge University)
