Flavor Asymmetry of Light Quarks in the Nucleon Sea
Gerald T. Garvey, Jen-Chieh Peng
Abstract
A surprisingly large asymmetry between the up and down sea quark distributions in the nucleon has been observed in recent deep inelastic scattering and Drell-Yan experiments. This result strongly suggests that the mesonic degrees of freedom play an important role in the description of the parton distributions of the hadronic sea. In this article, we review the current status of our knowledge of the flavor structure of the nucleon sea. The implications of various theoretical models as well as possible future measurements are also discussed.
Create a lesson
Related papers
The 3He(α,γ)7Be γ-ray angular distribution: measured, and calculated by effective field theory
S. Turkat, P. Hempel, X. Zhang et al.
Letter of Intent for Alpha Knockout from Nuclei in Hard Exclusive Processes with ALERT
Whitney R. Armstrong†, Ian Cloët, Fernando A. Flor et al.
Probing high-momentum components in 16O via zero-degree (p,d) cross-section ratios
FRS Experiment Collaboration, X. Wang, H. J. Ong et al.
Double-differential neutron-induced cross sections on Fe-nat at GANIL-NFS
L. de Arruda, D. Tarrío, X. Ledoux et al.
Event-by-event net-charge fluctuations in pp, OO, Ne-Ne, and Pb-Pb collisions with ALICE at the LHC
Nida Malik
Charge exchange reactions with central and tensor interactions and nuclear matrix elements associated with double-beta-decay neutrinos and astro neutrinos
Hiroyasu Ejiri, Yoritaka Iwata