The $bard-\bar{u}$ asymmetry of the proton in a Pion Cloud Model approach

Abstract

We study the $bard-\bar{u}$ asymmetry of the proton in a model approach in which hadronic fluctuations of the nucleon are generated through gluon splitting and recombination mechanisms. Within this framework, it is shown that the \ud asymmetry of the proton is consistently described by including only nucleon fluctuations to $|\pi N>$ and $|\pi \Delta >$ bound states. Predictions of the model closely agree with the recent experimental data of the E866/NuSea Collaboration.

Final version. To appear in Phys. Rev. D

References in corpus (5)

• Measurement of the Light Antiquark Flavor Asymmetry in the Nucleon Sea
• dbar/ubar Asymmetry and the Origin of the Nucleon Sea
• Dynamics of Light Antiquarks in the Proton
• Strange / anti-strange asymmetry in the nucleon sea
• A model for the parton distributions in hadrons

Cited by in corpus (12)

• Nucleon sea in the effective chiral quark model
• Next-to-Leading Order Constituent Quark Structure and Hadronic Structure Functions
• Parton distributions from nonlocal chiral SU(3) effective theory: Flavor asymmetries
• Sea quark contents of octet baryons
• Quark sea asymmetries of the octet baryons
• Physics of the Nucleon Sea Quark Distributions
• Sea Quark Flavor Asymmetry of Hadrons in Statistical Balance Model
• Pion and kaon parton distribution functions in a meson cloud model
• Gluon distributions in nucleons and pions at a low resolution scale
• Low $Q^2$ wave-functions of pions and kaons and their parton distribution functions
• Estimating proton radius and proportion of other non-perturbative components in the proton by the Maximum Entropy Method
• A New Method for Calculating the Energies Associated with Particle Reactions