Reggeon field theory RFT as an effective theory for QCD in Regge Limit

Effective field theory (EFT) is a general method for describing quantum systems with multiple-length scales in a tractable fashion. It allows us to perform precise calculations in established models (such as the standard models of particle physics and cosmology), as well as to concisely parametrize possible effects from physics beyond the standard models. EFTs have become key tools in the theoretical analysis of particle physics experiments and cosmological observations, despite being absent from many textbooks. This volume aims to provide a comprehensive introduction to many of the EFTs in use today, and covers topics that include large-scale structure, WIMPs, dark matter, heavy quark effective theory, flavour physics, soft-collinear effective theory, and more.

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Conformal Regge theory at finite boost

Journal of High Energy Physics ◽

10.1007/jhep05(2021)059 ◽

2021 ◽

Vol 2021 (5) ◽

Author(s):

Simon Caron-Huot ◽

Joshua Sandor

Keyword(s):

Field Theory ◽

Operator Product Expansion ◽

Operator Product ◽

Exact Results ◽

Double Integral ◽

Regge Theory ◽

Conformal Field ◽

Regge Trajectories ◽

Continuous Spins ◽

Regge Limit

Abstract The Operator Product Expansion is a useful tool to represent correlation functions. In this note we extend Conformal Regge theory to provide an exact OPE representation of Lorenzian four-point correlators in conformal field theory, valid even away from Regge limit. The representation extends convergence of the OPE by rewriting it as a double integral over continuous spins and dimensions, and features a novel “Regge block”. We test the formula in the conformal fishnet theory, where exact results involving nontrivial Regge trajectories are available.

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Failure of Bartel's scheme of applying Reggeon field theory to a spontaneously broken Yang-Mills theory

Physics Letters B ◽

10.1016/0370-2693(77)90749-3 ◽

1977 ◽

Vol 71 (1) ◽

pp. 97-98 ◽

Cited By ~ 2

Author(s):

Barry M. McCoy ◽

Tai Tsun Wu

Keyword(s):

Field Theory ◽

Yang Mills ◽

Reggeon Field Theory

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EFFECTIVE FIELD THEORY OF IDEAL-FLUID HYDRODYNAMICS

Modern Physics Letters B ◽

10.1142/s0217984996001139 ◽

1996 ◽

Vol 10 (21) ◽

pp. 999-1010 ◽

Cited By ~ 13

Author(s):

ADRIAAN M.J. SCHAKEL

Keyword(s):

Field Theory ◽

Effective Field Theory ◽

Effective Field ◽

Effective Theory ◽

Goldstone Mode ◽

Hydrodynamic Equations ◽

Standard Description ◽

Spontaneous Breakdown ◽

Sound Mode ◽

Fluid Hydrodynamics

Starting from a standard description of an ideal, isentropic fluid, we derive the effective theory governing a gapless non-relativistic mode — the sound mode. The theory, which is dictated by the requirement of Galilei invariance, entails the entire set of hydrodynamic equations. The gaplessness of the sound mode is explained by identifying it as the Goldstone mode associated with the spontaneous breakdown of Galilei invariance. Differences with a superfluid are pointed out.

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