This is the third and fully updated edition of the classic textbook on physics at the subatomic level. An up-to-date and lucid introduction to both particle and nuclear physics, the book is suitable for both experimental and theoretical physics students at the senior undergraduate and beginning graduate levels.
Topics are introduced with key experiments and their background, encouraging students to think and empowering them with the capability of doing back-of-the-envelope calculations in a diversity of situations. Earlier important experiments and concepts as well as topics of current interest are covered, with extensive use of photographs and figures to convey principal concepts and show experimental data.

The coverage includes new material on:
Detectors and accelerators
Nucleon elastic form factor data
Neutrinos, their masses and oscillations
Chiral theories and effective field theories, and lattice QCD
Relativistic heavy ions (RHIC)
Nuclear structure far from the region of stability
Particle astrophysics and cosmology 

Contents:
Background and Language
Tools:
Accelerators
Passage of Radiation Through Matter
Detectors
Particles and Nuclei:
The Subatomic Zoo
Structure of Subatomic Particles
Symmetries and Conservation Laws:
Additive Conservation Laws
Angular Momentum and Isospin
P, C, CP, and T
Interactions:
The Electromagnetic Interaction
The Weak Interaction
Introduction to Gauge Theories
The Electroweak Theory of the Standard Model
Strong Interactions
Models:
Quark Models of Mesons and Baryons
Liquid Drop Model, Fermi Gas Model, Heavy Ions
The Shell Model
Collective Model
Nuclear and Particle Astrophysics

Readership: Senior undergraduate students, beginning graduate students, and advanced engineering students. 

“Henley and García's presentation and style hold the reader's attention right from the start. The treatment is at just the right level to whet the reader's appetite, slake their thirst for understanding and assess the current ‘state of the art’ … this is a highly enlightening and up-to-date text, rather ambitious in its scope but successful in its aim to provide a comprehensive and comprehensible pedagogic overview of an exciting field of physics.”
Contemporary Physics