CLIC Background Studies and optimization of the innermost tracker elements

TL;DR

This paper evaluates background levels and optimizes the design of the innermost tracker components for CLIC, adapting ILC detector concepts to meet the collider's specific background constraints.

Contribution

It introduces a new layout for the CLIC vertex detector and forward disks, analyzing background dependencies on technology parameters.

Findings

Optimized detector layout for CLIC innermost tracker

Background levels characterized for new detector design

Background dependence on layer thickness and detection threshold

Abstract

The harsh machine background at the Compact Linear Collider (CLIC) forms a strong constraint on the design of the innermost part of the tracker. For the CLIC Conceptual Design Report, the detector concepts developed for the International Linear Collider (ILC) were adapted to the CLIC environment. We present the new layout for the Vertex Detector and the Forward Tracking Disks of the CLIC detector concepts, as well as the background levels in these detectors. We also study the dependence of the background rates on technology parameters like thickness of the active layer and detection threshold.