General scalar renormalisation group equations at three-loop order
نویسندگان
چکیده
منابع مشابه
Perturbation theory and renormalisation group equations
Renormalisation group (RG) methods are an essential ingredient in the study of non-perturbative problems in continuum and lattice formulations of quantum field theory. A number of RG equations have been proposed, where the starting point is the (infrared) regularised one loop effective action. Taking the derivative w.r.t. the infrared scale together with a subsequent one loop improvement leads ...
متن کامل2-Loop Supersymmetric Renormalisation Group Equations Including R-Parity Violation and Aspects of Unification
We present the complete 2-loop renormalisation group equations of the superpotential parameters for the supersymmetric standard model including the full set of R-parity violating couplings. We use these equations to do a study of (a) gauge coupling unification, (b) bottom-tau unification, (c) the fixed-point structure of the top quark Yukawa coupling, and (d) two-loop bounds from perturbative u...
متن کاملOne - loop renormalisation of general N = 12 supersymmetric gauge theory
We investigate the one-loop renormalisability of a general N = 1 2 supersymmetric gauge theory coupled to chiral matter, and show the existence of an N =
متن کاملScheme Independence at First Order Phase Transitions and the Renormalisation Group
We analyse approximate solutions to an exact renormalisation group equation with particular emphasis on their dependence on the regularisation scheme, which is kept arbitrary. Physical quantities related to the coarse-grained potential of scalar QED display universal behaviour for strongly first-order phase transitions. Only subleading corrections depend on the regularisation scheme and are sup...
متن کاملMath 220: First Order Scalar Semilinear Equations
(4) v′ r(s) = c(xr(s), yr(s), vr(s)). Note that here the subscript r denotes a parameter, not a derivative! We may equally well write xr(s) = x(r, s), yr(s) = y(r, s), and we will do so; we adopted the subscript notation to emphasize that along each integral curve r is fixed, i.e. is a constant. Which parameterization should we use? We are normally also given initial conditions along a curve Γ ...
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 High Energy Physics
سال: 2020
ISSN: 1029-8479
DOI: 10.1007/jhep12(2020)012