The discovery of the Higgs boson in 2012 was an important and exciting moment in the
world of high energy particle physics. But unanswered questions, including the Higgs mass …

We report the results of a search for long-lived particles produced in pairs in proton-proton
collisions at the LHC operating at a center-of-mass energy of√ s= 13 TeV. The data were …

This thesis presents a search for the production of a single top quark in association with a Z0
boson in the dileptonic decay channel as predicted by the Standard Model. The search uses …

Measurements of W and Z boson production cross sections in pp collisions at [square root]
s= 5.02 TeV and [square root] s= 13TeV are presented. Data was collected by the CMS …

This thesis presents the analysis of the data collected in 2016 and in 2017 by the CMS
detector at the Large Hadron Collider to perform a precise measurement of the cross section …

A study of inclusive four jet production in proton-proton collisions at a centre-of-mass energy
of 13 TeV is presented. The data sample was collected in 2016 with the CMS detector at the …

Since time immemorial, human beings have wondered about the causes of natural
phenomena taking place in the universe. A persistent question has been about the building …

The aim of the present thesis is to describe my work on the construction, installation,
commissioning, validation and operation of the position monitoring (called also alignment) …

Many of us have wondered, at some point in our lives, what the world is made out of and
how do they come together. This body of work is a humble attempt to contribute to the vast …

The following thesis is organized as fallow. The first chapter introduces the phe-nomenology
of the Standard Model and describes some aspects of the 2HDM and it finishes with a short …