Renormalization group improvement of the effective potential in massive phi**4 theory: Next-next-next-to-leading logarithm resummation

Nov, 1999
21 pages
Published in:
  • J.Korean Phys.Soc. 39 (2001) 971-979
e-Print:
Report number:
  • MIT-CTP-2929

Citations per year

19992005201120172022120
Abstract:
The renormalization group method is applied to the three-loop effective potential of the massive ϕ4\phi^4 theory in the MSˉ\bar{\rm MS} scheme in order to obtain the next-next-next-to-leading logarithm resummation. For this, we exploit four-loop parts of the renormalization group functions βλ\beta_\lambda, γm\gamma_m, γϕ\gamma_\phi, and βΛ\beta_\Lambda, which were already given to five-loop order via the renormalization of the zero-, two-, and four-point one-particle-irreducible Green's functions, to solve evolution equations for the parameters λ\lambda, m2m^2, ϕ\phi, and Λ\Lambda within the accuracy of the three-loop order.
  • phi**n model: 4
  • field theory: massive
  • effective potential
  • perturbation theory: higher-order
  • higher-order: 3
  • higher-order: 4
  • renormalization group