Scaling analysis of the 0(4) symmetric Phi**4 theory in the broken phase

Jun, 1992
34 pages
Published in:
  • Nucl.Phys.B 404 (1993) 517-555
e-Print:
Report number:
  • HLRZ-92-35,
  • PITHA-92-21

Citations per year

1993200120092017202502468
Abstract:
We study the O(4)O(4)--symmetric Φ 4 \Phi~4 --theory in the scaling region of the broken phase using the standard and a Symanzik improved action with infinite bare self-coupling λ\lambda. A high precision Monte Carlo simulation is performed by applying the reflection cluster algorithm. Employing the histogram method we analytically continue to a sequence of values of the hopping parameter κ\kappa neighbouring the actually simulated ones. In the investigated vicinity of the critical point κc\kappa_{c} finite volume effects affecting, e.g., the determination of the field expectation value Σ\Sigma and the mass mσm_\sigma of the σ\sigma--particle are very well described by 11--loop renormalized perturbation theory. We carry out a detailed scaling analysis on a high level of precision. Finally we discuss the upper bound on the Higgs mass for both kinds of actions.
  • phi**n model: 4
  • symmetry: O(4)
  • lattice field theory: action
  • scaling
  • Higgs particle: mass
  • mass: Higgs particle
  • upper limit
  • effect: finite size
  • renormalization
  • perturbation theory