scholarly journals Four-loop wave function renormalization in QCD and QED

2018 ◽  
Vol 97 (5) ◽  
Author(s):  
Peter Marquard ◽  
Alexander V. Smirnov ◽  
Vladimir A. Smirnov ◽  
Matthias Steinhauser
Keyword(s):  
Wave Function ◽  
Wave Function Renormalization

scholarly journals Photon splitting in strongly magnetized medium with taking into account positronium influence

2018 ◽  
Vol 191 ◽  
pp. 08011
Author(s):  
R.A. Anikin ◽  
M.V. Chistyakov ◽  
D.A. Rumyantsev ◽  
D.M. Shlenev
Keyword(s):  
Wave Function ◽  
Absorption Rate ◽  
Wave Function Renormalization ◽  
Selection Rules ◽  
Dispersion Properties ◽  
Photon Splitting

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.

PHASE STRUCTURE OF QED3 AT FINITE CHEMICAL POTENTIAL AND TEMPERATURE

2007 ◽  
Vol 22 (06) ◽  
pp. 449-456 ◽  
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.

scholarly journals FIRST LATTICE EVIDENCE FOR A NONTRIVIAL RENORMALIZATION OF THE HIGGS CONDENSATE

1998 ◽  
Vol 13 (29) ◽  
pp. 2361-2367 ◽  
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.

Wave function renormalization and nuclear parity nonconservation

1983 ◽  
Vol 125 (6) ◽  
pp. 509-512 ◽  
Author(s):  
John F. Donoghue ◽  
Barry R. Holstein
Keyword(s):  
Wave Function ◽  
Parity Nonconservation ◽  
Wave Function Renormalization
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