Jul 3 – 8, 2016
The University of Melbourne
Australia/Melbourne timezone

Naturalness and light Higgsinos: a powerful reason to build the ILC

Jul 7, 2016, 2:40 PM
Sidney Myer Asia G02-G03

Sidney Myer Asia G02-G03

Talk Experimental and Collider Aspects of SUSY Experimental and Collider Aspects of SUSY


Suvi-Leena Lehtinen (DESY)


Natural SUSY with light, nearly mass-degenerate Higgsinos is a theoretically well motivated scenario which would in general escape LHC searches. An
electron-positron collider would provide a clean environment where the Higgsinos would be either discovered or excluded. We present a detailed study of
precision measurements of Higgsinos at the proposed International Linear Collider with $\sqrt{s}$ = 500 GeV, using a Geant4-based simulation of the International
Large Detector concept. The scenarios considered have Higgsino mass differences of 10 - 20 GeV and a heavy scalar sector. The precision measurements can be used
to determine the parameters of NUHM2. Alternatively, weak scale gaugino masses can be extracted which allows for tests of gaugino mass unification.

Primary authors

Howard Baer (University of Oklahoma) Jacqueline Yan (The University of Tokyo) Jenny List (Deutsches Elektronen-Synchrotron (DE)) Keisuke Fujii (High Energy Accelerator Research Organization (JP)) Mikael Berggren (Deutsches Elektronen-Synchrotron (DE)) Suvi-Leena Lehtinen (DESY) Tomohiko Tanabe

Presentation materials