Long-term Running Experience with the Silicon Micro-strip Tracker at the D{\O} detector

TL;DR

This paper discusses the long-term operation of the Silicon Micro-strip Tracker at D{ ext{O}} in Fermilab, highlighting upgrades, challenges, and the integration of a silicon readout test-stand for improved detector performance and training.

Contribution

It presents the operational experience of the SMT over many years, including the addition of 'Layer 0' and the integration of a test-stand into the trigger framework for enhanced study and training.

Findings

Successful long-term operation of SMT since 2001

Implementation of 'Layer 0' improved impact parameter resolution

Test-stand integration aids training and subtle effect studies

Abstract

The SiliconMicro-strip Tracker (SMT) at the D{\O} experiment in the Fermilab Tevatron collider has been operating since 2001. In 2006, an additional layer, referred to as 'Layer 0', was installed to improve impact parameter resolution and compensate for detector degradation due to radiation damage to the original innermost SMT layer. The SMT detector provides valuable tracking and vertexing information for the experiment. This contribution will highlight aspects of the long term operation of the SMT, including the impact of the silicon readout test-stand. Due to the full integration of the test-stand into the D{\O} trigger framework, this test-stand provides an advantageous tool for training of new experts and studying subtle effects in the SMT while minimizing impact on the global data acquisition.