The large-scale distribution of galaxies retains imprints of acoustic waves that propagated through the primordial baryon-photon plasma. These waves leave a characteristic signature in the galaxy two-point correlation function, known as the Linear Point (LP). The LP is defined as the midpoint between the peak and dip of the correlation function at scales around 150 Mpc, and in recent years, it...
At high enough neutrino densities, the phenomenology of flavor conversion may be governed by neutrino-neutrino coherent forward scattering. In contrast to neutral current scattering on charged leptons, this process can be flavor-changing. The coherent nature of the interaction then implies that a large amount of neutrinos can undergo flavor conversion simultaneously. This collective effect is...
The Standard Model (SM) has long provided a remarkably successful framework for describing fundamental interactions. However, persistent anomalies in the neutrino sector, most notably the long-standing Gallium Anomaly, suggest potential deviations that warrant further investigation. In this talk, I address both the reinterpretation of the neutrino-gallium cross section and precision...
Neutrinos are among the most mysterious particles in the Standard Model, and their possible electromagnetic properties offer a compelling window into physics beyond the standard framework. Features such as a non-zero magnetic moment, a finite charge radius, or a tiny electric charge (millicharge) are not only theoretically intriguing, but also experimentally accessible through precision...
The recent observation of Coherent Elastic Neutrino–Nucleus Scattering (CEνNS) from solar $\rm ^8B$ neutrinos by dark matter direct detection experiments marks the first detection of the so-called “neutrino floor”. Far from being a mere background for dark matter searches, this signal opens a novel window to probe light new physics.
In this talk, I will present new constraints on light...
Vector boson mediation between visible and dark sectors is a popular theoretical proposal awaiting experimental test for different model parameter ranges. We take advantage of the enhancement on thermally averaged annihilation cross section $\langle \sigma v \rangle$ in the present day universe as compared to its early universe value from two parameter scenarios, namely the resonance...
Quantum gravitational effects are expected to reveal themselves at extreme energies, cosmological distances, in a break-down of standard quantum mechanics, or in the breaking of global symmetries. Neutrinos offer a unique potential to probe such effects: they are perfect quantum probes, their masses may be related to lepton number or flavor and thus global symmetry breaking and extra-galactic...
