MAP-Fis Research Conference

Session

High Energy Physics & Cosmology II (Chair: Carlos Herdeiro, Universidade de Aveiro) - Sala Sousa Pinto, DM (11.2.6)

11 Oct 2024, 14:30

University of Aveiro

125. Probing first interaction properties of ultra high energy cosmic rays by measuring the low muon number distribution tail using underground muon detectors

Alexandra Fernandes

11/10/2024, 14:30

Contributed Talk (20 minutes)

The Pierre Auger Observatory, the world’s largest experiment in the study of the highest energy astroparticles, is being upgraded with new detector technologies to reduce its current systematic uncertainties and accurately determine the mass composition of Ultra High Energy Cosmic Rays (UHECRs). The Underground Muon Detector (UMD), a part of the recent low-energy extension of the observatory,...

116. Numerical tests of the large charge expansion

José Guilherme Boura de Matos (FCUP)

11/10/2024, 14:50

Contributed Talk (20 minutes)

We perform Monte-Carlo measurements of two and three-point functions of
charged operators in the critical O(2) model in 3 dimensions. Our results are compatible
with the predictions of the large charge superfluid effective field theory. We improved the Worm algorithm to obtain reliable
measurements for large charge values. We devised
a measurement scheme that mitigates the uncertainties...

126. Searching for dark matter with the ATLAS detector using unconventional signatures

Maura Barros (Laboratory of Instrumentation and Experimental Particle Physics (PT))

11/10/2024, 15:10

Contributed Talk (20 minutes)

The Standard Model (SM) can be considered an effective low-energy expression of a more fundamental theory.
Several observed phenomena cannot be explained by the SM, the existence of dark matter (DM) being one of them.
At the Large Hadron Collider (LHC), protons can stay intact after the interaction and be scattered by very small angles, which are then detected by the ATLAS Forward Proton...

136. Using Machine Learning to Scan Beyond Standard Model Parameter Spaces

Fernando Souza

11/10/2024, 15:30

Contributed Talk (20 minutes)

In High Energy Physics, when testing theoretical models of new physics against
experimental results, the customary approach is to simply sample random points from
the parameter space of the model, calculate their predicted values for the desired
observables and compare them to experimental data. However, due to the typically
large number of parameters in these models, this process is...