III IPARCOS Congress

Session

PhD students

11 Dec 2024, 11:00

Aula Magna M1 (Facultad de Ciencias Físicas, UCM)

6. Dark Matter production from Phase Transitions

Mr Jesús Luque del Castillo

11/12/2024, 11:00

We consider a Bubble Expansion mechanism for the production of scalar dark matter during a first-order phase transition in the early Universe. Seeking for a dark matter energy density in agreement with observations, we study different renormalizable and non-renormalizable interactions between the dark matter species and the field undergoing the transition, considering all the possible regimes...

5. Transverse diffeomorphisms: basic ideas and cosmological consequences

Mr Diego Tessainer, Mr Jaramillo Darío

11/12/2024, 11:10

We reflect on the possibility of breaking the diffeomorphism (Diff) invariance in the gravitational couplings of matter down to only transverse diffeomorphisms (TDiff), and study the consequences on scalar field theories. We begin by analyzing the general implications of this restricted symmetry for a single scalar field within a general setting. Afterwards, we study the cosmological scenario...

29. First β-decay spectroscopy of Cd132

Marcos Llanos Exposito

11/12/2024, 11:20

Isotopes close to the doubly-magic nuclei 132Sn are of strong interest from the point of view
of nuclear structure. Spectroscopic studies are performed with the aim of obtaining a better un-
derstanding of the evolution of shell orbits in nuclei with large N/Z ratios, and providing critical
tests of theoretical models. The information on the nuclear structure and decay properties of...

4. Phenomenology of Twist 3 PDFs

Mr Guillermo Portela Maller

11/12/2024, 11:30

These past years the theoretical particle physics community has been, once more, gradually shifting their attention to the phenomenology of highly energetic processes. And rightfully so, as the next big project in the particle physics landscape, the EIC (Electron-Ion Collider), while still undergoing construction, is expected to enter commission with the coming of the new decade. The EIC will...

7. Cosmological production of dark matter in the Universe and in the laboratory

Mr Álvaro Parra-López

11/12/2024, 11:40

This work explores cosmological particle production within Quantum Field Theory in Curved Spacetimes, focusing on its potential as a dark matter production mechanism. It also investigates the use of Bose-Einstein condensates to simulate this process. The study examines how particles are generated from the vacuum due to spacetime dynamics, especially during periods of inflation in the early...

8. No black holes from light

Mr Álvaro Álvarez Domínguez

11/12/2024, 11:50

General Relativity theoretically allows the formation of black holes through the gravitational collapse of purely electromagnetic radiation. However, this scenario would involve electromagnetic strengths surpassing the critical Schwinger limit, resulting in the generation of electron-positron pairs. This quantum phenomenon counteracts the collapse, with the created particles scattering out of...

1. Giant CP violation in charmless three-body B meson decays at LHCb: all order formalism for meson-meson final state interactions

Alba reyes Torrecilla (Universidad Complutense de Madrid)

11/12/2024, 12:00

LHCb has observed giant CP violation in localized regions of the Dalitz plots of B to three charmless light mesons. This has been interpreted as an enhancement due to strong two-body final state interactions. In this talk, we show how such interactions, described with dispersive analyses of data, can be implemented beyond the leading order expansion in the two-body re-scattering amplitude.

9. Deep-learning techniques in ground-based imaging gamma-ray observatories and the CTLearn package

Alexander Cervino

11/12/2024, 12:10

Gamma rays are key when it comes to studying topics such as dark matter from an indirect perspective or the Lorentz invariance, as well as probing a wide range of astrophysical phenomena that provide a deeper understanding of the most energetic events in the universe. They can be detected through Imaging Atmospheric Cherenkov Telescopes (IACTs), which capture images of extensive air showers...

14. Unveiling the mechanisms that drive star formation in galaxies

Mr Guillermo Valé Arteaga

11/12/2024, 12:20

Understanding the mechanisms governing star formation in galaxies is key to unravel their evolution. This work employs Bayesian statistics and data mining techniques to analyze metallicity gradients, which provide valuable insights into the processing and enrichment of gas in galaxies. A notable trend is the manifestation of the downsizing effect the in resolved properties of galaxies, where...

11. Characterization and modeling of SiPMs

Víctor Moya

11/12/2024, 12:30