Analysis of the light-flavor scalar and axial-vector diquark states with QCD sum rules

TL;DR

This paper uses QCD sum rules to systematically analyze light-flavor scalar and axial-vector diquark states in vacuum and nuclear matter, predicting their masses and exploring their properties.

Contribution

It provides the first systematic QCD sum rule analysis of these diquark states both in vacuum and nuclear matter, offering new mass predictions.

Findings

Predicted diquark masses in vacuum and nuclear matter

Identified differences in diquark properties between vacuum and nuclear matter

Provided insights into diquark roles in hadronic structure

Abstract

In this article, we study the light-flavor scalar and axial-vector diquark states in the vacuum and in the nuclear matter using the QCD sum rules in an systematic way, and make reasonable predictions for their masses in the vacuum and in the nuclear matter.