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Renormalization
New post in Renormalization
Degree of divergence of a Feynman diagram
August 1st, 2022
quantum-field-theory
renormalization
feynman-diagrams
$\phi^{4}$ Propagator - Feynman Diagram: internal vertex that loops back to itself
August 1st, 2022
feynman-diagrams
regularization
dimensional-regularization
quantum-field-theory
renormalization
Is QCD free from all divergences?
July 20th, 2020
regularization
renormalization
quantum-chromodynamics
Why is mass renormalization insufficient to explain electron mass?
March 13th, 2020
fermions
standard-model
renormalization
higgs
mass
Explanation of Cardy's "a theorem"
November 22nd, 2020
quantum-field-theory
conformal-field-theory
renormalization
Pole Mass vs. Running Mass vs. Other Running Parameters
April 8th, 2020
renormalization
quantum-field-theory
Charge Renormalization and Photon Propagator
October 5th, 2020
scattering
renormalization
quantum-electrodynamics
quantum-field-theory
Renormalized mass
January 13th, 2021
mass
quantum-field-theory
renormalization
Are the bare parameters of a renormalizable field theory infinitesimal or infinite?
March 25th, 2020
renormalization
quantum-field-theory
Peskin's book page 334 proof of $Z_1=Z_2$ to all orders in QED perturbation theory
February 7th, 2020
renormalization
ward-identity
quantum-field-theory
perturbation-theory
quantum-electrodynamics
Massless $\lambda \phi^4$ QFT
August 1st, 2022
quantum-field-theory
renormalization
quantum-electrodynamics
Unitarity and renormalizability
August 1st, 2022
quantum-field-theory
renormalization
unitarity
What happens when you apply the path integral to the Einstein-Hilbert action?
October 8th, 2020
general-relativity
quantum-gravity
renormalization
path-integral
quantum-field-theory
What does it mean to renormalize an effective field theory?
August 2nd, 2020
quantum-field-theory
string-theory
renormalization
regularization
effective-field-theory
What is meant by “factorization scale factor” in QCD calculations?
April 4th, 2020
quantum-chromodynamics
quantum-field-theory
experimental-physics
renormalization
Are the rest masses of fundamental particles certainly constants?
June 6th, 2020
quantum-field-theory
particle-physics
mass
renormalization
Does the Standard Model have a Landau pole?
August 6th, 2020
quantum-field-theory
standard-model
renormalization
What constant varies in the fine structure constant?
September 1st, 2020
standard-model
renormalization
physical-constants
What forbids the existence of a $\lambda (A^\mu A_\mu)^2$ term in the Stueckelberg action?
February 22nd, 2020
lagrangian-formalism
gauge-theory
quantum-electrodynamics
renormalization
higgs
Basic question about the S-Matrix, Unitarity and Effective Field Theory
December 20th, 2020
quantum-field-theory
renormalization
unitarity
s-matrix-theory
effective-field-theory
Renormalizing composite operators
April 7th, 2020
quantum-field-theory
renormalization
effective-field-theory
Is Wilson-Fisher fixed point unique?
September 2nd, 2020
quantum-field-theory
critical-phenomena
renormalization
condensed-matter
Why are only logarithmic divergence relevant for the Callan-Symanzik equation? Intuitive understanding?
March 10th, 2020
quantum-field-theory
regularization
renormalization
In $d=4$ $g\phi^3$-theory where does the divergence in the 3-point one-loop diagram come from?
September 17th, 2020
renormalization
homework-and-exercises
singularities
feynman-diagrams
quantum-field-theory
Is there a way to justify perturbation theory in QFT?
April 19th, 2020
quantum-mechanics
quantum-field-theory
mathematical-physics
renormalization
A question about running coupling constant
May 24th, 2021
quantum-field-theory
renormalization
Massive vector boson propagators and renormalizability
September 16th, 2021
quantum-field-theory
standard-model
renormalization
Why is the correlation function a power law at the critical point?
August 1st, 2022
renormalization
correlation-functions
critical-phenomena
statistical-mechanics
Modified Maxwell's equations
March 31st, 2020
renormalization
quantum-electrodynamics
causality
magnetic-monopoles
electromagnetism
The relation between anomalous dimensions and renormalization constants
June 9th, 2020
renormalization
quantum-field-theory
research-level
dimensional-regularization
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