Response of the High Granularity Calorimeter HGCAL and Characterisation of the Higgs Boson : With the CMS Experiment at the LHC / Matteo Bonanomi.

Format:

Book

Author/Creator:

Bonanomi, Matteo, author.

Series:

Springer theses.

Springer Theses Series

Language:

English

Subjects (All):

Higgs bosons.

Z bosons.

Physical Description:

1 online resource (XIX, 267 p. 148 illus., 118 illus. in color.)

Edition:

First edition.

Place of Publication:

Cham, Switzerland : Springer, [2023]

Summary:

This book highlights the most complete characterization of the Higgs boson properties performed to date in the "golden channel," i.e., decay into a pair of Z bosons which subsequently decay into four leptons. The data collected by the CMS experiment in the so-called Run-II data-taking period of the LHC are used to produce an extensive set of results that test in detail the predictions of the Standard Model. Given the remarkable predictive power of the SM when including the Higgs boson, possible new physics will require even more extensive studies at higher statistics. A massive upgrade of the detectors is necessary to maintain the current physics performance in the harsh environment of the High-Luminosity LHC (HL-LHC) project, expected to start by the end of 2027. The CMS Collaboration will replace the current endcap calorimeters with a High Granularity Calorimeter (HGCAL). The HGCAL will be the very first large-scale silicon-based imaging calorimeter ever employed in a high-energy physics experiment. This book presents the results of the analysis of the test beam data collected with the first large-scale prototype of the HGCAL. The results of this analysis are used to corroborate the final design of the HGCAL and its nominal physics performance expected for the HL-LHC operations.

Contents:

Introduction

The CMS detector at the LHC

The CMS endcap calorimeters upgrade for the HL-LHC

The "golden channel" and its properties

Events selection and categorization

Signal and background modelling

The Higgs boson properties in the "golden channel"

Conclusions.

Notes:

Description based on print version record.

Includes bibliographical references.

ISBN:

3-031-26833-4