Equally, those particles sometimes described as elementary or fundamental, although first recognized in the cosmic radiation, soon assumed a role of importance in nuclear problems, especially in the understanding of the forces between neutrons and protons. The nucleus entered physics as a necessary component of the atomic model and nuclear effects in spectroscopy and solid state physics now provide not only elegant methods for determination of nuclear properties but also convincing demonstrations of the powers of quantum mechanics. Rigid adherence to such limits would, however, exclude much that is both exciting and informative. Introductory Nuclear Physics 3rd Edition ISBN-13: 9780471805533 ISBN: 3-X Authors: David Halliday, Kenneth S Krane Rent Buy This is an alternate ISBN. 1.1 General survey It is customary to regard nuclear physics as the field of study that includes the structure of atomic nuclei, the reactions that take place between them, and the techniques, both experimental and theoretical, that shed light on these subjects.