منابع مشابه
Complexification of Gauge Theories
For the case of a first-class constrained system with equivariant momentum map, we study the conditions under which the double process of reducing to the constraint surface and dividing out by the group of gauge transformations G is equivalent to the single process of dividing out the initial phase space by the complexification GC of G. For the particular case of a phase space action that is th...
متن کاملGauge dependence in topological gauge theories
We parametrize the gauge-fixing freedom in choosing the Lagrangian of a topological gauge theory. We compute the gauge-fixing dependence of correlators of equivariant operators when the compactified moduli space has a non-empty boundary and verify that only a subset of these has a gauge independent meaning. We analyze in detail a simple example of such anomalous topological theories, 4D topolog...
متن کاملChiral gauge theories revisited
A characteristic feature of the electroweak interactions is that the leftand righthanded components of the fermion fields do not couple to the gauge fields in the same way. The term chiral gauge theory is reserved for field theories of this type, while all other gauge theories (such as QCD) are referred to as vector-like, since the gauge fields only couple to vector currents in this case. At fi...
متن کاملIntroduction to Gauge Theories
This report is divided into three parts. In the first part, we describe some nonlinear equations of classical physics. Certain of these equations, for example the Yang-Mills equations, have a geometrical significance. Their solutions are harmonic connection forms on a principal bundle; the structure group of the bundle is called the "gauge group" in physics. The purely mathematical questions co...
متن کاملAsymptotically Free Gauge Theories -
Asymptotically free gauge theories of the strong interactions are constructed and analyzed. The reasons for doing this are recounted, including a review of renormalization group techniques and their application to scaling phenomena. The renormalization group equations are derived for Yang-Mills theories. The parameters that enter into the equations are calculated to lowest order and it is shown...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Geometry and Physics
سال: 1996
ISSN: 0393-0440
DOI: 10.1016/0393-0440(94)00053-0