Monte-Carlo Based QCD Sum Rules Analysis of $X_0(2900)$ and $X_1(2900)$

TL;DR

This paper uses Monte-Carlo and traditional QCD Sum Rules to analyze the recently discovered exotic states $X_0(2900)$ and $X_1(2900)$, exploring their possible molecular or tetraquark structures and matching experimental masses.

Contribution

It introduces a Monte-Carlo based analysis within QCD Sum Rules to study the mass and decay constant distributions of these exotic states, providing new insights into their structures.

Findings

Mass results agree with experimental observations

Monte-Carlo analysis reveals possible structural assignments

Supports molecular and tetraquark interpretations

Abstract

Motivated by the very recent discovery of fully open-flavor exotic states $X_0(2900)$ and $X_1(2900)$ by the LHCb Collaboration, we study possible interpretations of these exotic states by QCD Sum Rules method. We have calculated mass and decay constant by traditional QCD Sum Rules analysis and Monte-Carlo based analysis. $X_0(2900)$ and $X_1(2900)$ are studied in molecular and diquark-antidiquark tetraquark pictures, respectively. Obtained mass results agree well with the masses observed in the experiment. We also made a Monte-Carlo based analysis within QCD Sum Rules for the mass and decay constant distributions to investigate the possible assignments for the structures of $X_0(2900)$ and $X_1(2900)$.