Proton Sea Quark Flavour Asymmetry and Roper Resonance

TL;DR

This paper investigates the proton's sea quark flavor asymmetry and the Roper resonance using a meson cloud model, successfully reproducing key properties through a Hamiltonian eigenvalue approach.

Contribution

It introduces a unified scheme combining the proton and Roper resonance within a meson cloud model using Hamiltonian matrix methods.

Findings

Reproduces proton sea quark flavor asymmetry

Models Roper resonance properties

Uses Hamiltonian eigenvalue solutions

Abstract

We study the proton and the Roper resonance together with the meson cloud model, by constructing a Hamiltonian matrix and solving the eigenvalue equation. The proton sea quark flavour asymmetry and some properties of the Roper resonance are thus reproduced in one scheme.