In recent years, a great experimental effort has led to the discovery of some exotic states found in the charmonium and bottomonium spectra. Some examples of such states are the Zc(3900), Zc(4020), Zcs(3985), Zb(10610) and Zb(10650). These states do not fit the conventional qq¯ quark model given that they contain hidden-charm (cc¯) or hidden-bottom (bb¯) components, but they are also found to...
With the increasing sensitivity and precision of resonant Schottky detectors, this technology becomes more valuable in the determination of masses and lifetimes of the yet unstudied nuclei inside heavy ion storage rings but also in general storage ring physics. At present, information from these detectors is gained by high-end units with software and hardware interface that are not versatile...
In this presentation, we analyse how gender stereotypes influence the choice of professional career. In particular, we discuss how patriarchal social conditioning implies a lower presence of women in science. We depict possible measures to achieve greater equity in an area as masculinized as the scientific one.
Medical imaging has been one of the main tools employed during the COVID-19 pandemic for diagnosis and disease progression assessment. The most commonly used have been Chest X-Rays (CXR) and Computed Tomography (CT). However, CXR has a limited sensibility, while CT is more expensive, less accessible, gives more dose to the patients, and requires sanitizing the scanner after each patient...
The parton-level kinematics plays a crucial role for understanding the internal structure of hadrons and improving the precision of the calculations. To better understand the kinematics at the partonic level, we study the production of one hadron and a direct photon, including up to Next-to-Leading Order Quantum Chromodynamics and Leading-Order Quantum Electrodynamics corrections. Using a...
In this work we study the Σπ and Λπ production off free nucleons driven by the strangeness-changing weak charged current. We calculate the total cross sections for all possible channels and estimate the flux-averaged total cross sections for experiments like MiniBooNE, SciBooNE, T2K, and Minerva. The model is based on the lowest order effective SU(3) chiral Lagrangians in the presence of an...
Supernova (SN) explosions are one of the most energetic events in the observable universe.
Given that, they are the best natural laboratories to investigate extreme physical phenomena, that otherwise would not be reproducible on Earth.
During these powerful explosions chemical elements are also produced, that go to enrich the amount of heavy elements in the interstellar...
NEXT (Neutrino Experiment with a Xenon TPC) is a double beta decay experiment located in Huesca (Spain) at the Laboratorio Subterraneo de Canfranc (LSC). It searches for the neutrino-less double beta decay (ββ0ν) of 136Xe, a lepton-number-violation process that would prove the Majorana nature of neutrinos and eventually provide handles for a measurement of the neutrino absolute mass. The...
ANAIS (Annual modulation with NaI Scintillators) is a direct dark matter detection experiment whose goal is to confirm or refute in a model independent way the highly controversial positive annual modulation signal reported by DAMA/LIBRA collaboration for more than twenty cycles. ANAIS-112, consisting of 112.5 kg of NaI(Tl) scintillators, is presently in data taking phase at the Canfranc...
In this work, we provide a simple model that studies the probability to obtain a given hierarchy between two scales. In particular, we work in a theory with a light SU(2)L sector and a heavy SU(2)H sector, and two scalar doublets with each one corresponding to one sector. Furthermore, both sectors can interact by means of a U(1)X. By the Coleman-Weinberg mechanism, the gauge bosons and scalars...
In 2019 the LHCb experiment discovered for the first time a clear signal of direct CP violation in the charm sector, in particular in the decays of D0 mesons to π+π− and K+K−. However, the theoretical determination of the strong part of the related decay amplitudes in the SM remains uncertain, mainly due to the difficulties when dealing with charmed hadronic asymptotic states. A long-known...
Interest in searches for heavy neutral leptons (HNLs) at the LHC has increased considerably in the past few years. In the minimal scenario, HNLs are produced and decay via their mixing with active neutrinos in the Standard Model (SM) spectrum. However, many SM extensions with HNLs have been discussed in the literature, which sometimes change expectations for LHC sensitivities drastically. In...
The goal of the ASACUSA (Atomic Spectroscopy And Collisions Using Slow Antiprotons) experiment at CERN's Antiproton Decelerator is to measure the difference of the ground state hyperfine splitting of antihydrogen and hydrogen in order to test CPT symmetry.
The ASACUSA hodoscope is an octagonal barrel-type detector consisting of plastic scintillators and read out by silicon photo multipliers...
