Conveners
Morning session 1
- Riccardo Acquaviva (Istituto Nazionale di Fisica Nucleare)
- Davide Milillo (Istituto Nazionale di Fisica Nucleare)
-
Francesca Lecce (Istituto Nazionale di Fisica Nucleare)15/12/2025, 10:30
Axion-like particles (ALPs) coupled to nucleons can be efficiently produced in core-collapse supernovae (SNe) and then, if they couple to photons, convert into gamma rays in cosmic magnetic fields, generating short gamma-ray bursts. Though ALPs from a Galactic SN would induce an intense and easily detectable gamma-ray signal, such events are exceedingly rare. In contrast, a few SNe per year...
Go to contribution page -
Danilo Lepenne15/12/2025, 10:42
I will give an overview of the derivation of the master equation for open quantum systems, from both a physical and mathematical perspective.
After discussing the structure of the master equation and its derivation along with its key physical assumptions, I will introduce the mathematical instruments needed to formalize the problem: such tools range from Van Hove's "λ²t" limit and...
Go to contribution page -
Giuseppe Roselli (Istituto Nazionale di Fisica Nucleare & Università degli Studi di Bari)15/12/2025, 10:54
The study of semileptonic $B$ decays into charmed mesons $D^{(*)}$ plays a crucial role in the determination of CKM matrix element $V_{cb}$, improving and studying the nonperturbative dynamics of QCD, in testing heavy-quark symmetry. Indeed, these processes are described by matrix elements between hadronic states, which are nonperturbative. They can be expressed in terms of functions of $q^2$...
Go to contribution page -
Carlo la Torre15/12/2025, 11:06
I consider semileptonic B-meson decay to the orbitally excited charmed meson $D^*_2$, having spin parity $J^P=2^+$. In particular, I apply the QCD sum rules method (using the original formulation known as short distance sum rules) to compute the decay constant of $D_2^*$ that is a preliminary ingredient for the calculation of the form factors describing the transition B $\rightarrow$...
Go to contribution page -
Fabio Aprile15/12/2025, 11:18
Topological defects are stable singular structures that naturally emerge in ordered media. In three-dimensional nematic liquid crystals, extended defects such as disclination loops display a remarkably rich phenomenology, whose full structure and dynamical role are still not completely understood. In particular, we focus on a class of these loops and show that they can be endowed with a...
Go to contribution page