Banca de DEFESA: LETÍCIA MARIA VALENÇA GUEDES

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : LETÍCIA MARIA VALENÇA GUEDES
DATE: 04/10/2024
TIME: 14:00
LOCAL: Auditório do DFTE
TITLE:

Constraining Dark Matter Signals Through Indirect Detection

KEY WORDS:

Dark Matter. Indirect Detection. Gamma Rays. Standard Model of Particle Physics.

PAGES: 85
BIG AREA: Ciências Exatas e da Terra
AREA: Física
SUMMARY:

In this work, we briefly review the main ingredients of the Standard Model of particle physics and lay the groundwork for dark
matter physics. Although not yet detected, the existence of dark matter is strongly supported by numerous observational
evidence in astrophysics. By assuming fundamental characteristics of dark matter particles, inferred from their observed
effects, we consider a specific candidate and describe the detection strategies for this case. In particular, we investigate the
indirect detection method using gamma-ray lines produced by dark matter annihilation, which are one of the most robust and
distinct signals of dark matter, providing a direct window into the nature of its interactions. We develop a framework based on
effective field theory to describe the annihilation of dark matter particles into photons and study the detectability of these
signals using the Fermi Large Area Telescope (Fermi-LAT) and the High Energy Stereoscopic System (H.E.S.S.) telescopes to
constrain the parameter space of these effective dark matter interactions. Our results demonstrate that gamma-ray lines can
probe dark matter interactions up to the TeV scale, contributing to the ongoing effort to understand the particle nature of dark
matter.

 

COMMITTEE MEMBERS:
Externo à Instituição - CARLOS ALBERTO SANTOS DE ALMEIDA - UFC
Presidente - 1043096 - FARINALDO DA SILVA QUEIROZ
Interno - 3214164 - LEONARDO ANDRADE DE ALMEIDA
Interno - 1390849 - RODRIGO FERNANDES LIRA DE HOLANDA