Banca de DEFESA: RICARDO CESAR SILVA REGO

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : RICARDO CESAR SILVA REGO
DATE: 01/10/2024
TIME: 14:00
LOCAL: Plataforma Google Meet
TITLE:

Search for new physics at the Compact Linear Collider

KEY WORDS:

Standard Model; leptophilic Z’ boson; collider physics; CLIC.

PAGES: 87
BIG AREA: Ciências Exatas e da Terra
AREA: Física
SUMMARY:

In this work, we first review the fundamental aspects of the Standard Model of electroweak
interactions, addressing theoretical foundations such as the importance of gauge symmetries
and spontaneous symmetry breaking in the generation of particle masses and the emergence
of interactions between fermions and gauge bosons. We then advance to Physics Beyond the
Standard Model within the scope of collider physics, motivated by future planned colliders,
particularly the Compact Linear Collider (CLIC). Our objective is to estimate the CLIC’s
capability to discover a new massive vector boson, a leptophilic Z’. To this end, we perform
simulations of electron-positron collisions at the CLIC for both signal and background events
as functions of certain kinematic variables and implement cuts that enhance the signal-to-
background ratio. From this, we conclude that the CLIC has a high potential to discover a
leptophilic Z’ with masses up to 3 TeV with less than 10 f b−1 of integrated luminosity, and a
Z’ with a mass of 5 TeV with an integrated luminosity of 1000 f b−1. Our work underscores the
CLIC’s capability to achieve significant sensitivities in the detection of a Z’ vector boson and to
establish the existence of a new fundamental force in nature.

 

COMMITTEE MEMBERS:
Presidente - 1043096 - FARINALDO DA SILVA QUEIROZ
Externo à Instituição - LUCIANO MELO ABREU - UFBA
Interno - 1294916 - MADRAS VISWANATHAN GANDHI MOHAN
Externo à Instituição - SANDRO FONSECA DE SOUZA - UERJ
Externo à Instituição - YOHAN MAURICIO OVIEDO TORRES - UFPB