Luminosity Measurement at the Compact Muon Solenoid Experiment of the Lhc

ISBN-13: 9783030065997 / Angielski / Miękka / 2019 / 142 str.

Olena Karacheban

Spis treści

Introduction to Collider Physics.- Measurement of the Luminosity at Colliders.- BCM1F Detector as Luminometer.- Measurements of the Luminosity Using BCM1F.- Upgrade of the Luminometers for High Luminosity LHC.

O autorze

Olena Karacheban was born in the small city of Izmail in Ukraine. Following school she entered Kiev National University, where she received a bachelors and then a masters degree. Thanks to her university supervisor and the collaboration with DESY and Fermilab she was able to gain work experience on major physics experiments whilst still a student. Her dreams were realized when she started the PhD program at the Brandenburgische Technical University, Cottbus, supported by a grant from the German-Israel Foundation, and thence she began her career at CERN.

Blurb

This book describes the application of a novel technology for beam instrumentation and luminosity measurement and first results on a cutting edge technology potentially to be used after the upgrade of the Large Hadron Collider to higher luminosity.

It presents a unique diamond-based luminometer with a detailed performance study.

The online bunch-by-bunch luminosity measurements made provide an invaluable feedback to the Collider for beam optimisation and the understanding of the beam dynamics.

The precision of the luminosity measurement is crucial for all physics analyses. This book highlights the Van der Meer method, which is used for the calibration of the luminometers of the CMS (Compact Muon Solenoid) experiment, and describes the estimate of systematic uncertainties, e.g. due to radiation damage of sensors and electronics and uncertainties of beam parameters.

For the future high-luminosity upgrade of the collider, sapphire sensors are investigated in a test beam. It is demonstrated for the first time that sapphire sensors can be used as single particle detectors. A model for the charge transport in sapphire is developed and successfully applied.