We explore flavored resonant leptogenesis embedded in a neutrinophilic 2HDM. The mass pattern of the right-handed neutrinos~(RHNs) is generated by invoking a softly broken U(1) lepton family number difference symmetry. Such a symmetry features two degenerate heavy RHNs and a massless one. The soft breaking then generates a small splitting between the two heavier one, while also generating mass...
Lepton number violation (LNV) is a key signal of physics beyond the Standard Model, often linked to neutrino mass generation and baryogenesis. In this talk, I will present our study of dimension-seven $\Delta L = 2$ SMEFT operators at a same-sign muon collider, focusing on the process $\mu^+\mu^+ → W^+W^+ / W^+qq'$ at $\sqrt{s} = 2$ TeV with 1 ab$^{-1}$ luminosity, inspired by the $\mu$TRISTAN...
At extreme temperature and energy density conditions, achievable in the laboratory by colliding heavy nuclei at ultra-relativistic energies, strongly-interacting matter undergoes a transition from its condensed, hadronic phase to the deconfined, partonic phase named quark-gluon plasma (QGP). The main goal of the ALICE physics program is to investigate the properties of the QGP at the CERN LHC,...
The high center-of-mass energy and luminosity of the LHC have enabled the production of millions of top quarks, providing an unprecedented opportunity to study top quark properties and related observables with high precision. As the heaviest known elementary particle, the top quark plays a unique role in the Standard Model and is a sensitive probe for potential new physics. This talk will...
We present a model independent study of the semileptonic decay $\Lambda_c^- \to \Lambda \mu^- \bar\nu_{\mu}$ in the presence of right-handed neutrinos, focusing on possible new physics contributions to the second-generation transition $\bar{c} \to \bar{s} \mu^- \nu_{\mu}$. Our analysis is carried out within the Standard Model Effective Field Theory (SMEFT) framework, where we parameterize new...
Measurements of the Cabibbo-Kobayashi-Maskawa quark-mixing matrix at Belle and Belle II
Toponium is the color-singlet bound state of top quark and antitop quark. We study the signature of toponium formation at the LHC.
The existence of magnetic monopoles (MMs) remains one of the most enduring questions in particle physics. They are theorized to play a crucial role in explaining the quantization of electric charge. According to the Grand Unified Theory (GUT), MMs were produced during the separation of the strong and electroweak forces, an event that occurred shortly after the Big Bang. Previous efforts to...
Measurements of electroweak penguin and lepton-flavour violating $B$ decays to final states with missing energy at Belle and Belle II
