# Valence and sea quarks in the nucleon

@article{Bijker2014ValenceAS,
title={Valence and sea quarks in the nucleon},
author={Roelof Bijker and Elena Santopinto},
journal={Journal of Physics: Conference Series},
year={2014},
volume={578},
pages={012015}
}
• Published 17 December 2014
• Physics
• Journal of Physics: Conference Series
In this contribution, we discuss the spin and flavor content of the proton in the framework of the unquenched quark model, and address the role of valence and sea quarks in the nucleon.

## Tables from this paper

The spin structure of the nucleon
• Physics
Reports on progress in physics. Physical Society
• 2019
Analytic calculations of the hadron spectrum have now being realized using light-front holography and superconformal quantum mechanics, a novel approach providing a well-founded semiclassical approximation to QCD.
Can sea quark asymmetry shed light on the orbital angular momentum of the proton
• Physics
• 2016
A striking prediction of several extensions of the constituent quark model, including the unquenched quark model, the pion cloud model and the chiral quark model, is a proportionality relationship
RPA treatment of a motivated QCD Hamiltonian in the SO(4) (2 + 1)-flavor limit: Light and strange mesons
• Physics
• 2017
The SO(4) symmetry of a sector of the quantum chromodynamics (QCD) Hamiltonian was analyzed in a previous work. The numerical calculations were then restricted to a particle–hole (ph) space and the

## References

SHOWING 1-10 OF 14 REFERENCES
Flavor asymmetry of the nucleon sea and the five-quark components of the nucleons.
• Physics
Physical review letters
• 2011
The qualitative agreement between the data and the calculations is interpreted as evidence for the existence of the intrinsic light-quark sea in the nucleons.
Flavor and spin contents of the nucleon in the quark model with chiral symmetry.
• Cheng, Li
• Physics
Physical review letters
• 1995
A simple calculation in the framework of the chiral quark theory of Manohar and Georgi yields results that can account for many of the failures'' of the naive quark model: significant strange quark
Unquenched quark model for baryons: Magnetic moments, spins, and orbital angular momenta
• Physics
• 2009
We present an unquenched quark model for baryons in which the effects of the quark-antiquark pairs (uū, dđ, and ss) are taken into account in an explicit form via a microscopic, QCD-inspired,
Pion fluctuation in deep inelastic scattering
• Physics
• 2006
Abstract.The forward neutron production in the ep collisions at 300GeV measured by H1 and ZEUS Collaborations at DESY has been used to estimate the total probability for proton fluctuation into nπ+
Mesonic Contributions to the Spin and Flavor Structure of the Nucleon
• Physics
• 1996
Since its initial investigation at SLAC in the late 60's, deep inelastic lepton scattering has provided a wonderful tool to explore perturbative QCD and to test many features of the Standard Model.
Flavor asymmetry in the light-quark sea of the nucleon.
• Physics
Physical review. D, Particles and fields
• 1992
A model calculation in chiral field theory shows how an up-down asymmetry can arise from the dissociation of a quarks into a quark plus a pion within the nucleon.
General method of calculation of any hadronic decay in the3P0 model
• Physics
• 1992
The3P0 pair creation model of hadron decays is generalized to be applicable to the decay of any hadron. The wave function of the decaying hadron is expanded in terms of two clusters. The transition
Orbital angular momentum in the nucleon
Analysis of the measured value of the integrated $\mathrm{d\ifmmode \bar{}\else \={}\fi{}}$-$\mathrm{u\ifmmode \bar{}\else \={}\fi{}}$ asymmetry (${I}_{\mathrm{fas}}$ $=$ 0.147