Novel Perspectives from Light-Front QCD, Superconformal Algebra, and Light-Front Holography

TL;DR

This paper explores how Light-Front Quantization, holography, and superconformal algebra provide new insights into hadron structure, spectrum, and QCD dynamics, revealing supersymmetric relations and flavor-dependent nuclear effects.

Contribution

It introduces novel applications of Light-Front holography and superconformal algebra to hadron physics, offering new perspectives on nonperturbative QCD phenomena.

Findings

Insights into the hadronic mass scale and spectrum

Supersymmetric relations between mesons and baryons

Evidence of flavor-dependent antishadowing in nuclear structure functions

Abstract

Light-Front Quantization -- Dirac's "Front Form" -- provides a physical, frame-independent formalism for hadron dynamics and structure. Observables such as structure functions, transverse momentum distributions, and distribution amplitudes are defined from the hadronic LFWFs. One obtains new insights into the hadronic mass scale, the hadronic spectrum, and the functional form of the QCD running coupling in the nonperturbative domain using light-front holography. In addition, superconformal algebra leads to remarkable supersymmetric relations between mesons and baryons. I also discuss evidence that the antishadowing of nuclear structure functions is non-universal, i.e., flavor dependent, and why shadowing and antishadowing phenomena may be incompatible with the momentum and other sum rules for the nuclear parton distribution functions.