The Tokai to Kamioka (T2K) project is a neutrino experiment located in Japan. It studies the properties of neutrinos, which are subatomic particles that are difficult to detect. The experiment sends a beam of neutrinos from the Tokai facility to the Kamioka underground laboratory, approximately 295 kilometers away. The main goal of T2K is to investigate neutrino oscillation, a phenomenon where neutrinos change types as they travel. By analyzing the differences between the neutrinos produced at Tokai and those detected at Kamioka, researchers aim to gain insights into the fundamental nature of matter and the universe.