Trinucleon Electromagnetic Form Factors and the Light-Front Hamiltonian Dynamics

TL;DR

This paper presents preliminary calculations of the electromagnetic form factors of helium-3 and tritium using Light-front Relativistic Hamiltonian Dynamics, highlighting relativistic effects at high momentum transfer relevant for upcoming experiments.

Contribution

It introduces a method to compute nuclear form factors with a Poincaré covariant current operator and realistic bound states, without dynamical two-body currents.

Findings

Relativistic effects become significant for Q^2 > 2.5 (GeV/c)^2.

The approach is relevant for interpreting upcoming TJLAB experimental data.

Preliminary results suggest observable signatures of relativistic dynamics in nuclear form factors.

Abstract

This contribution briefly illustrates preliminary calculations of the electromagnetic form factors of $^3$He and $^3$H, obtained within the Light-front Relativistic Hamiltonian Dynamics, adopting i) a Poincar\'e covariant current operator, without dynamical two-body currents, and ii) realistic nuclear bound states with $S$, $P$ and $D$ waves. The kinematical region of few $(GeV/c)^2$, relevant for forthcoming TJLAB experiments, has been investigated, obtaining possible signatures of relativistic effects for $Q^2>2.5 ~(GeV/c)^2$.