1. Light-Front Dynamics and the $${{^{3}He}}$$ 3 H e Spectral Function
- Author
-
Alessio Del Dotto, Sergio Scopetta, Leonid Kaptari, Giovanni Salmè, Emanuele Pace, and Matteo Rinaldi
- Subjects
Physics ,Hamiltonian mechanics ,010308 nuclear & particles physics ,EMC effect ,Order (ring theory) ,01 natural sciences ,Atomic and Molecular Physics, and Optics ,Momentum ,symbols.namesake ,Pion ,Theory of relativity ,0103 physical sciences ,symbols ,Covariant transformation ,Sum rule in quantum mechanics ,010306 general physics ,Mathematical physics - Abstract
Two topics are presented. The first one is a novel approach for a Poincare covariant description of nuclear dynamics based on light-front Hamiltonian dynamics. The key quantity is the light-front spectral function, where both normalization and momentum sum rule can be satisfied at the same time. Preliminary results are discussed for an initial analysis of the role of relativity in the EMC effect in \({{^{3}He}}\). A second issue, very challenging, is considered in a non-relativistic framework, namely a distorted spin-dependent spectral function for \({{^{3}He}}\) in order to take care of the final state interaction between the observed pion and the remnant in semi-inclusive deep inelastic electron scattering off polarized \({{^{3}He}}\). The generalization of the analysis within the light-front dynamics is outlined.
- Published
- 2016