1.

Record Nr.

UNINA9910520078703321

Autore

Defranchis Matteo M.

Titolo

First Measurement of the Running of the Top Quark Mass / / by Matteo M. Defranchis

Pubbl/distr/stampa

Cham : , : Springer International Publishing : , : Imprint : Springer, , 2021

ISBN

9783030903763

9783030903756

Edizione

[1st ed. 2021.]

Descrizione fisica

1 online resource (170 pages)

Collana

Springer Theses, Recognizing Outstanding Ph.D. Research, , 2190-5061

Disciplina

531.140287

539.72167

Soggetti

Particles (Nuclear physics)

Quantum field theory

Quantitative research

Elementary Particles, Quantum Field Theory

Data Analysis and Big Data

Particle Physics

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Nota di contenuto

Introduction -- The Standard Model of Particle Physics and the Top Quark -- The LHC and the CMS Detector -- Event Reconstruction in CMS -- Appendices.

Sommario/riassunto

In this thesis, the first measurement of the running of the top quark mass is presented. This is a fundamental quantum effect that had never been studied before. Any deviation from the expected behaviour can be interpreted as a hint of the presence of physics beyond the Standard Model. All relevant aspects of the analysis are extensively described and documented. This thesis also describes a simultaneous measurement of the inclusive top quark-antiquark production cross section and the top quark mass in the simulation. The measured cross section is also used to precisely determine the values of the top quark mass and the strong coupling constant by comparing to state-of-the-art theoretical predictions. All the theoretical and experimental aspects



relevant to the results presented in this thesis are discussed in the initial chapters in a concise but complete way, which makes the material accessible to a wider audience.