On the wave function renormalization for Wilson actions and their one particle irreducible actions

The process of the photon splitting, γ → γγ, is investigated in strongly magnetized vacuum with taking into account positronium influence. The dispersion properties of photons and the new polarization selection rules are obtained. The absorption rate of the leading photon splitting channels are calculated with taking account of the photon dispersion and wave function renormalization.

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Infra-red behaviour of the wave function renormalization constant in covariant gauges

Il Nuovo Cimento ◽

10.1007/bf02750085 ◽

1965 ◽

Vol 38 (4) ◽

pp. 1644-1648

Author(s):

R. Perrin

Keyword(s):

Wave Function ◽

Renormalization Constant ◽

Wave Function Renormalization ◽

Infra Red ◽

Wave Function Renormalization Constant

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PHASE STRUCTURE OF QED3 AT FINITE CHEMICAL POTENTIAL AND TEMPERATURE

Modern Physics Letters A ◽

10.1142/s0217732307021251 ◽

2007 ◽

Vol 22 (06) ◽

pp. 449-456 ◽

Cited By ~ 16

Author(s):

MIN HE ◽

HONG-TAO FENG ◽

WEI-MIN SUN ◽

HONG-SHI ZONG

Keyword(s):

Phase Diagram ◽

Wave Function ◽

Symmetry Breaking ◽

Quantum Electrodynamics ◽

Phase Structure ◽

Chemical Potential ◽

Chiral Symmetry Breaking ◽

Three Dimensional ◽

Mass Function ◽

Wave Function Renormalization

We study the dynamical chiral symmetry breaking (DCSB) of three-dimensional quantum electrodynamics (QED3) at finite chemical potential and temperature in the framework of Dyson–Schwinger approach. Based on the rainbow approximation and assumption that the wave-function renormalization factor equals to one, the dynamically generated mass function is derived and then the corresponding phase diagram in the (T, μ) plane is obtained.

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FIRST LATTICE EVIDENCE FOR A NONTRIVIAL RENORMALIZATION OF THE HIGGS CONDENSATE

Modern Physics Letters A ◽

10.1142/s0217732398002515 ◽

1998 ◽

Vol 13 (29) ◽

pp. 2361-2367 ◽

Cited By ~ 6

Author(s):

P. CEA ◽

L. COSMAI ◽

M. CONSOLI

Keyword(s):

Wave Function ◽

Continuum Limit ◽

Higgs Mass ◽

Lattice Simulation ◽

Wave Function Renormalization ◽

Renormalization Factor ◽

Physical Mass ◽

The Difference ◽

Ising Limit ◽

The Continuum

General arguments related to "triviality" predict that, in the broken phase of (λΦ4)4 theory, the condensate <Φ> rescales by a factor Zφ different from the conventional wave function renormalization factor, Z prop . Using a lattice simulation in the Ising limit, we measure Zφ= m2χ from the physical mass and susceptibility and Z prop from the residue of the shifted-field propagator. We find that the two Z's differ, with the difference increasing rapidly as the continuum limit is approached. Since Zφ affects the relation of <Φ> to the Fermi constant, it can sizably affect the present bounds on the Higgs mass.

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