Introduction to Elementary Particles by David
Griffiths
This
is the first quantitative treatment of elementary particle theory that
is accessible to undergraduates. Using a lively, informal writing style,
the author strikes a balance between quantitative rigor and intuitive
understanding. The first chapter provides a detailed historical introduction
to the subject. Subsequent chapters offer a consistent and modern presentation,
covering the quark model, Feynman diagrams, quantum electrodynamics, and
gauge theories. A clear introduction to the Feynman rules, using a simple
model, helps readers learn the calculational techniques without the complications
of spin. And an accessible treatment of QED shows how to evaluate tree-level
diagrams.

An Introduction to the Standard
Model of Particle Physics by W. M. Cottingham,
D. A. Greenwood, W. N. Cottingham
This
introductory graduate textbook provides a concise but accessible introduction
to the theory central to particle physics--the so-called Standard Model.
Chapters developing the theory are interspersed with chapters describing
some of the wealth of experimental data. The book assumes only standard
mathematics acquired from undergraduate physics; more sophisticated mathematical
ideas are developed in the text and in appendices.

Introduction to High Energy Physics by Donald
H. Perkins
The
4th edition of a textbook that has dominated advanced undergraduate and
graduate particle physics teaching for the last 25 years. The author is
a senior figure of modern day particle physics and brings a unique authority
and depth of understanding to the subject. The new edition has been extensively
rewritten and completely updated. Completely new chapters have been added
to cover the burgeoning field connecting particle physics with cosmology,
and another new chapter introduces exciting new topics such as supersymmetry,
superstrings, neutrino masses and grand unified theories

Quarks and Leptons : An Introductory
Course in Modern Particle Physics by Francis Halzen, Alan D. Martin (Contributor)
This
self-contained textbook in computing high energy scattering amplitudes
describes particle physics computations for graduate students with little
or no exposure to quantum field theory. It provides students of theoretical
or experimental physics with the mathematical tools for engaging in the
study of high energy particle physics. It's an easier book than Quigg's
below but covers similar material.

Gauge Theory of Elementary Particle
Physics by Ta-Pei Cheng, Ling-Fong
Li (Contributor)
This
comprehensive book graduate text in particle physics is on the theoretical
side but has plenty of good detail about amplitude calculations. Topics
covered include electroweak guage theory, monopoles, instantons, chiral
symmetry and partons. The author is releasing a companion volume with
problems and solutions, available by the end of this year.

Gauge Theories of the Strong, Weak,
and Electromagnetic Interactions by
Chris Quigg
This
book is suitable for someone who already understands the basics of quantum
field theory or relativistic quantum mechanics and wants to learn how
to perform complex calculations in high energy particle physics, in all
of their gory detail. It also makes a good reference with very helpful
appendices on Feynman rules, phase space formulas, and regularization
procedures.