منابع مشابه
Properties of Chiral Wilson Loops
We study a class of Wilson Loops in N = 4,D = 4 Yang-Mills theory belonging to the chiral ring of a N = 2, d = 1 subalgebra. We show that the expectation value of these loops is independent of their shape. Using properties of the chiral ring, we also show that the expectation value is identically 1. We find the same result for chiral loops in maximally supersymmetric Yang-Mills theory in three,...
متن کاملHard Thermal Loops and Chiral Lagrangians
Chiral symmetry is used as the guiding principle to derive hard thermal loop effects in chiral perturbation theory. This is done by using a chiral invariant background field method for the non-linear sigma model and the WessZumino-Witten lagrangian, with and without external vector and axial vector sources. It is then shown that the n-point hard thermal loop is the leading thermal correction fo...
متن کاملThe φNN coupling from chiral loops
Starting from effective Lagrangians which combine a gauge formulation of Vector Meson Dominance with Chiral Lagrangians, the coupling of the φ to the nucleon, which is zero at tree level due to the OZI rule, is calculated perturbatively considering loop contributions to the electric and magnetic form factors. We obtain reasonably smaller values for both form factors than those for ρN N and cons...
متن کاملChiral Meson Physics at Two Loops∗
An overview of Chiral Perturbation Theory calculations in the mesonic sector at the two Loop level is given. Discussed in some detail are the partially quenched case relevant for lattice QCD, the general fitting procedures and ππ ,πK scattering as well as the determination of Vus and Kl3 decays. ∗ Invited plenary talk presented at the 19th European Few-Body conference, Groningen, The Netherland...
متن کامل- 069 Properties of Chiral Wilson Loops
We study a class of Wilson Loops in N = 4, D = 4 Yang-Mills theory belonging to the chiral ring of a N = 2, d = 1 subalgebra. We show that the expectation value of these loops is independent of their shape. Using properties of the chiral ring, we also show that the expectation value is identically 1. We find the same result for chiral loops in maximally supersymmetric Yang-Mills theory in three...
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: Nuclear Physics B
سال: 1972
ISSN: 0550-3213
DOI: 10.1016/0550-3213(72)90299-4