🔬 Three Decades of FCNC Research in the 3-3-1 Model
Particle physics continues to explore new ways to understand the fundamental forces of the universe. One important theoretical framework is the 3-3-1 model with right-handed neutrinos , which extends the Standard Model and predicts new particles and interactions. ⚛️ A key aspect of this model is Flavor-Changing Neutral Currents (FCNC) —rare processes where quarks change flavor without altering their electric charge. In the Standard Model these processes are highly suppressed, but in the 3-3-1 framework they can appear more prominently, making them powerful signals of new physics . 🔍 Early research mainly focused on the role of the Z′ boson , a hypothetical neutral gauge particle predicted by the model. This particle can mediate FCNC processes and influence rare decays and quark interactions. 🧪 More recent studies explore the alignment limit , a theoretical condition that reduces unwanted flavor violations while keeping the model consistent with experimental observations. 📊 After ...