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Getting a Handle on Correlation Functions

delete2026-05-12
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Gernot Eichmann *
DOI:10.3390/particles9020052delete
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Abstract

Abstract

En 中文
The central objects in a quantum field theory are its n-point correlation functions and matrix elements. Their structure is determined by Lorentz invariance and leads to tensor decompositions, the Lorentz-invariant coefficient functions of which encode the physics of the process. For growing n, the complexity of these objects may increase considerably and make it challenging to deal with them. Here, we give a pedagogical introduction to the topic and provide some tools to manage this complexity, and we will show how symmetries can be used as organizing principles.
Keywords:
n-point functions
tensor bases
permutation symmetries

Journal

P
Particles
IF:
2.3
Papers:
79
Citations:
0

Organization

U
university of graz
Scholars:
866
Papers: 429
Citations: 0
Cited Papers

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