Determination of Chargino and Neutralino Masses in high-mass SUSY scenarios at CLIC

TL;DR

This study evaluates the precision of measuring chargino and neutralino masses in high-mass SUSY scenarios at a multi-TeV e+e- collider, considering realistic experimental effects and comparing generator-level and full simulation results.

Contribution

It provides a detailed analysis of mass determination accuracy using kinematic endpoints and threshold scans, incorporating effects like initial state radiation and beamstrahlung.

Findings

Mass measurement precision achieved for charginos and neutralinos.

Impact of initial state radiation and beamstrahlung on measurement accuracy.

Comparison between generator-level and full simulation results.

Abstract

This note reports the results of a study of the accuracy in the determination of chargino and neutralino masses in two high-mass supersymmetric scenarios through kinematic endpoints and threshold scans at a multi-TeV e+e- collider. The effects of initial state radiation, beamstrahlung and parton energy resolution are studied in fully hadronic final states of inclusive SUSY samples. Results obtained at generator level are compared to those from fully simulated and reconstructed events for selected channels.