This book aims to provide a survey of the current state of research in the physics of neutrinos, which has undergone dramatic development during the last decade, in a form accessible to the nonspecialist and the graduate stu dent. The major issue during the last two decades has been the neutrino mass, whereas the interaction of neutrinos was well understood within the framework of the standard theory, which was established in the 1970s. In 1994, we published a textbook-format review article "Physics 01Neutrinos' in "Physics and Astrophysics 01 Neutrinos", in anticipation that the mass of the neutrino would be found in the near future. It was indeed found thanks to the Super-Kamiokande experiment four years after that book was written, and a flurry of activity followed in the phenomenology of the neutrino mass. From the theoretical point of view, the importance of this discovery sterns from the fact that it probably indicates the presence of a new energy scale beyond the standard theory. At the same time, the formalism for massive neutrinos and the techniques to find the neutrino mass have now realistic importance and have become the subject of standard physics. On the other hand, experiment revealed that the pattern of the neutrino mass and mixing among generations appears in a way different from what has been speculated on the basis of existing theoretical models.
From the reviews: "This neutrino survey is presented in a form accessible to non-specialists and graduate students, and will also be useful as a handbook for researchers in this field." (Physicalia 2005, 57, page 179) "Professors Fukugita and Yanagida have put together, in one volume of 11 chapters and more than 500 pages, a well presented and well laid out treatise on the Physics of Neutrinos and Applications to Astrophysics. Each chapter is essentially self-contained and as such the book is accessible to readers at all levels." (Professor K. Green (University of Sussex & Rutherford Appleton Laboratory), Contemporary Physics 2004, vol. 45, page 362) "This book provides a survey of the current state of research into the physics of neutrinos, which has observed important development during the last decade. ... This neutrino survey is presented in a form accessible to non-specialists and graduate students, and will also be useful as a handbook for researchers in this field. ... Starting from the standard theory of electroweak interactions, the key notions are explained in detail and the fundamental equations are derived explicitly, so that readers can understand their precise content." (Laurent Favart, Physicalia, Vol. 57 (2), 2005) "Professors Fukugita and Yanagida have put together ... a well presented and well laid out treatise on The Physics of Neuturinos and Applications to Astrophysics. Each chapter is essentially self-contained and as such the book is accessible to readers at all levels. ... The text ... is a valuable source of reference material. ... This book is an excellent starting point for graduate students and an opportunity for all those interested in Particle Physics research to keep abreast of the field." (Professor K. Green, Contemporary Physics, Vol. 45 (4), 2004)