Twocomponent spinors are the basic ingredients for describing fermions in quantum field theory in . 3+1 spacetime dimensions. We develop and review the techniques of the twocomponent spinor formalism and provide a complete set of Feynman rules for…
High Energy Physics
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In this review article, we discuss the current status of particle dark matter, including experimental evidence and theoretical motivations. We discuss a wide array of candidates for particle dark matter, but focus on neutralinos in models of…

These lectures consisted of an elementary introduction to conformal field theory, with some applications to statistical mechanical systems, and fewer to string theory. Contents: 1. Conformal theories in d dimensions 2. Conformal theories in 2…

We present an update of the results presented in 1, using 3.1 pb1. In this update the analysis underwent only minor modifications due to changes in the trigger. No resonances were found in the updated sample. We improved the limits set on the…

The results gathered here on simple Lie algebras have been selected with attention to the needs of unified model builders who study YangMills theories based on simple, localsymmetry groups that contain as a subgroup the SUw2 × Uw1 × SUc3 symmetry…

In the classical theory black holes can only absorb and not emit particles. However it is shown that quantum mechanical effects cause black holes to create and emit particles as if they were hot bodies with temperature ~ ~ 10 where ~ is the surface…

The OPERA neutrino experiment at the underground Gran Sasso Laboratory has measured the velocity of neutrinos from the CERN CNGS beam over a baseline of about 730 km with much higher accuracy than previous studies conducted with accelerator…

Advances in mathematics and physics have often occurred together. The development of Newton’s theory of mechanics and the simultaneous development of the techniques of calculus constitute a classic example of this phenomenon. However, as mathematics…

We review the holographic correspondence between field theories and string/M theory, focusing on the relation between compactifications of string/M theory on Antide Sitter spaces and conformal field theories. We review the background for this…

The 1983 book, free at last, with corrections and bookmarks. From the original troff, but now with CM (TeX) fonts.

Choosing good problems is essential for being a good scientist. But what is a good problem, and how do you choose one? The subject is not usually discussed explicitly within our profession. Scientists are expected to be smart enough to figure it out…

· A Preview of Particle Physics· Symmetries and Quarks· Antiparticles· Electrodynamics of Spinless Particles· The Dirac Equation· Electrodynamics of Spin1/2 Particles· Loops, Renormalization, Running Coupling Constants, and All That· The Structure…

We argue that the following three statements cannot all be true: (i) Hawking radiation is in a pure state, (ii) the information carried by the radiation is emitted from the region near the horizon, with low energy effective field theory valid beyond…

A combination of results on the rare decays B 0 s ! m +m and B 0 d ! m +m from the CMS and LHCb experiments is performed. After accounting for known correlations, the average timeintegrated branching fraction of the decay B 0 s ! m +m is determined…

We give a short introduction to N = 1 supersymmetry and supergravity and review the attempts to construct models in which the breakdown scale of the weak interactions is related to supersymmetry breaking.

We establish a direct connection between scattering amplitudes in planar fourdimensional theories and a remarkable mathematical structure known as the positive Grassmannian. The central physical idea is to focus on onshell diagrams as objects of…

A gauge theory with colour gauge group U(N) and quarks having a colour index running from one to N is considered in the limit N → ∞, g^2N fixed. It is shown that only planar diagrams with the quarks at the edges dominate; the topological structure…

General conditions for dynamical supersymmetry breaking are discussed. Very small effects that would usually be ignored, such as instantons of a grand unified theory, might break supersymmetry at a low energy scale. Examples are given (in 0 + 1 and…

In a framework of the renormalizable theory of weak interaction, problems of CPviolation are studied. It is concluded that no realistic models of CPviolation exist in the quartet scheme without introducing any other new fields. Some possible…

A general introduction to the topological mechanism responsible for the absolute confinement of quarks inside hadronic bound states is given, including the effects of a finite instanton angle. We then propose a calculational technique for computing…
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