Gravitational form factors of the deuteron

TL;DR

This paper calculates the gravitational form factors of the deuteron using non-relativistic chiral effective field theory, providing a theoretical framework and comparison with existing models.

Contribution

It develops a non-relativistic reduction method for the energy-momentum tensor matrix element of spin-one systems and extracts deuteron gravitational form factors.

Findings

Form factors are derived within the chiral effective field theory framework.

Comparison shows consistency with existing model calculations.

Provides a new theoretical approach for analyzing deuteron structure.

Abstract

The gravitational form factors of the deuteron are calculated in the framework of non-relativistic chiral effective field theory. Non-relativistic reduction of the matrix element of the energy-momentum tensor operator for spin-one systems is worked out, and the gravitational form factors of the deuteron are extracted from the three-point function of the energy-momentum tensor using the LSZ reduction formula. The obtained form factors are compared to results of model calculations available in the literature.