Nuclear physics is the field of physics that studies the building blocks and interactions of atomic nuclei. Nuclear power and nuclear bombs are the most commonly known applications of nuclear physics, but the research field is also the basis for a far wider range of less common applications. High Energy Physics focuses on a number of enigmatic issues that go beyond the very successful Standat Model of particle physics. Among these are the problem of neutrino mass, the (as yet) unobserved Higgs particle, the quark-gluon plasma, quantum aspects of gravity. Nuclear energy in the nucleus.(core) of an atom. Atoms are tiny particles that make up every object in the uriverse. There is enormous energy in the bonds that hold atoms together. Nuclear energy can be used to make electricity. But first the energy must be released. It can be released from atoms in two ways: nuclear fusion and nuclear fission. In nuclear fusion, energy is released when atoms are combined or fused together to form a larger atom. This is how the sun produces energy. In nuclear fission, atoms are split apart to form smaller atoms, releasing energy Nuclear power plants use nuclear fission to produce electricity. This book is useful to the advanced graduate student who has familiarity with quantum field theory, the Standard Model, and the general theory of relativity, and will also provide a useful reference for working scientists.