The null results from searches for standard weakly-interacting massive particles (WIMPs) have led to a variety of experiments aiming to test alternative dark matter (DM) hypothesis. In particular, several well-motivated DM production models predict sub-GeV candidates, and this fact has promoted a strong international effort to explore such regime.
In this context, the SuperCDMS SNOLAB...
The DAMIC-M experiment is a direct detection experiment searching for dark matter particles using thick, fully depleted silicon charge-coupled devices (CCDs), aiming for a target exposure of 1 kg-year. With the inclusion of skipper readout technology, the experiment is capable of achieving single-electron resolution through multiple non-destructive measurements of individual pixel charges,...
TREX-DM (TPC for Rare Event eXperiments-Dark Matter) at LSC is an experiment looking for low-mass WIMPs with a TPC equipped with large microbulk Micromegas. An update on the background after the installation of an improved version of the detectors is discussed, as well as the method developed to calibrate in the low-energy range (few and sub keV). Likewise, the latest R&D results using a GEM...
The DarkSide-20k experiment will search for dark matter using double-phase time projection chamber filled with 50 tonnes of liquid argon. The activity of the atmospheric argon in the atmosphere is too large to operate this detector, so a cornerstone for the success of this program is the procurement of low radioactivity argon, which is extracted from underground sources and results in a...
ANAIS is an experiment aimed at directly detecting dark matter, with the objective to either verify or refute the annual modulation signal observed by DAMA/LIBRA. ANAIS-112, which consist of 112.5 kg of NaI(Tl) scintillators, has been taking data at the Canfranc Underground Laboratory in Spain since August 2017. The results obtained from the first three years of collected data do not indicate...
In this work we study the reach of future Direct Detection Dark Matter experiments within the framework of effective field theory (EFT) to describe the DM-nucleus scattering cross section. To extract as much information as possible, we perform a Bayesian analysis using Machine Learning techniques which allow us to assess the discovery potential of each parameter point in an easy and fast way....
BabyIAXO is the first implementation of the International AXion Observatory. Currently, works have begun in construction site in Desy, Hamburg, Germany. University of Zaragoza is developing the baseline X-ray detectors, gaseus detectors with Micromegas as readout plane. Two prototipes have been in operation during last year: Iaxo-D0 in Zaragoza with a veto system designed to identify muons and...
ANTARES had been searching for cosmic neutrinos from the bottom of the Mediterranean Sea from 2006 until 2022, when KM3NeT, which since 2015 is being built in two sites in the same sea, overtook its sensitivity taking the baton. ANTARES is now preparing the final analyses with its complete data set while at the same time the first results with KM3NeT are coming out. This contribution aims to...
KM3NeT/ORCA is a water Cherenkov detector that is currently under con-
struction in the Mediterranean Sea. The main objective of ORCA is the precise
measurement of atmospheric neutrino oscillations but the detector also pro-
vides the possibility to investigate various Beyond Standard Model theories.
Even though the construction is not jet finished, data is already being taken
and a...
DUNE (Deep Underground Neutrino Experiment) is a long-baseline neutrino experiment that will measure the neutrino mass ordering and CP-violation by observing neutrino oscillations. It is planned to be made of four far-site LAr-TPCs (Liquid Argon Time Projection Chamber) of ~17kT each, located at SURF (Sanford Underground Research Facility at 1300 km from the neutrino source, 1.5km below...
The Deep Underground Neutrino Experiment (DUNE), one of the future long-baseline neutrino experiments, is mainly devoted to investigate unequivocally the 3-neutrino oscillation parameter paradigm. Moreover, it has a broad physics program beyond long-baseline neutrino physics, encompassing Beyond Standard Model physics as well as a variety of non-accelerator searches, such as supernova...
The NEXT (Neutrino Experiment with a Xenon TPC) project is an international collaboration aimed at finding evidence of neutrinoless double beta decay in Xe-136, using a high-pressure gaseous time projection chamber with electroluminescence and optical read-out. After an initial phase of research and development, the team was able to run a small-scale experiment called NEXT-White, which took...
In this talk, I will analyse the effect of the resonant production of low-mass vector mediators from neutrino-antineutrino coalescence in the core of proto-neutron stars on the supernova neutrino flux duration. First, I will argue that, in the regime where neutrino-antineutrino interactions via the new vector mediator dominate over the Standard Model neutrino-nucleon scattering, a...
In this seminar, I will explore the potential for uncovering new neutrino physics through the use of dark matter direct detection experiments and its complementarity with spallation source experiments. In particular, I will analyse the Sterile Baryonic Neutrino Model, an extension of the SM in which we add a sterile massive neutrino. I will show how the sterile neutrino can be generated...
We investigate how the resonant conversion at a temperature $\overline{T}=25$-$65$ keV of a fraction of the CMB photons into an axion-like majoron affects BBN. The scenario, that assumes the presence of a primordial magnetic field and the subsequent decay of the majorons into neutrinos at $T\approx 1$ eV, has been proposed to solve the $H_0$ tension. We find two main effects. First, since we...
The process of Coherent Elastic Neutrino-Nucleus Scattering (CEvNS), first observed in 2017 by the COHERENT collaboration, has provided a powerful tool to study physics beyond the Standard Model within the neutrino sector. In this talk, we present the current bounds on non-standard interactions and electromagnetic properties of neutrinos obtained from CEvNS measurements. Our analysis includes...
Continuous gravitational waves are long-duration gravitational-wave signals
that still remain to be detected. These signals are expected to be produced
by rapidly-spinning non-axisymmetric neutron stars,
and would provide valuable information on the physics of such compact objects;
additionally, they would allow us to probe the galactic population of
EM-dark neutron stars, whose...
