Fermion-fermion scattering in a Yang-Mills theory at high energy: Sixth-order perturbation theory

1975 ◽  
Vol 12 (10) ◽  
pp. 3257-3271 ◽  
Author(s):  
Barry M. McCoy ◽  
Tai Tsun Wu
Keyword(s):  
Perturbation Theory ◽  
High Energy ◽  
Sixth Order ◽  
Order Perturbation ◽  
Order Perturbation Theory ◽  
Yang Mills

scholarly journals Einstein–Yang–Mills theory: gauge invariant charges and linearization instability

2021 ◽  
Vol 81 (7) ◽  
Author(s):  
Emel Altas ◽  
Ercan Kilicarslan ◽  
Bayram Tekin
Keyword(s):  
General Relativity ◽  
Perturbation Theory ◽  
Order Perturbation ◽  
Order Perturbation Theory ◽  
Gauge Fields ◽  
Gauge Invariant ◽  
Yang Mills ◽  
First Order ◽  
Flat Spacetime ◽  
First Order Perturbation

AbstractWe construct the gauge-invariant electric and magnetic charges in Yang–Mills theory coupled to cosmological general relativity (or any other geometric gravity), extending the flat spacetime construction of Abbott and Deser (Phys Lett B 116:259–263, 1982). For non-vanishing background gauge fields, the charges receive non-trivial contribution from the gravity part. In addition, we study the constraints on the first order perturbation theory and establish the conditions for linearization instability: that is the validity of the first order perturbation theory.

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