Amazon.com description: Product Description: This is an extensively revised and updated edition of a well-known undergraduate textbook on elementary particle physics. Professor Hughes has taken the opportunity to include a number of new chapters and bring the text completely up-to-date. Amongst other things, he includes details of the recent experimental evidence confirming the unification of the electromagnetic and weak interactions: the discovery of the W and Z bosons. In this field much can be learnt from the way the subject developed, and so, where this helps its understanding, the author uses an historical treatment. At all stages the theoretical development is closely linked to the relevant experimental measurements, providing a sound foundation for what might otherwise appear a rather abstract subject.