Proton spin in the valon model

Journal Article · Mon Aug 01 04:00:00 EDT 1994 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.50.1946· OSTI ID:7272528

Arash, F ^[1]

---

1. Centre for Theoretical Physics and Mathematics, Atomic Energy Organization of Iran (AEOI), P.O. Box 11365-8486, Tehran (Iran, Islamic Republic of) and Physics Department, Amir Kabir University of Technology, Hafez Avenue, Tehran (Iran, Islamic Republic of)

The valon model description of the proton is used to calculate contributions of the constituents of the proton to its spin. It is shown that the results of the model calculation agree rather well with the EMC results. It is conjectured that in probing the nucleon with high [ital Q][sup 2] one actually probes its valon structure. It is further conjectured that the valence quark contribution to the proton spin cancels out the sea contribution, and gluons almost exclusively carry the spin of the proton. Our results satisfy various theoretical constraints on the sea polarization.

• OSTI ID: 7272528
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 50:3; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

662240 -- Models for Strong Interactions-- (1992-)
662330 -- Photon & Charged-Lepton Interactions with Hadrons-- (1992)
662410 -- Properties of Baryons & Baryon Resonances-- (1992-)
663300* -- Nuclear Reactions & Scattering
General-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR MOMENTUM
BARYONS
BOSONS
ELEMENTARY PARTICLES
EMC EFFECT
FERMIONS
GLUONS
HADRONS
MATHEMATICAL MODELS
MOMENTUM TRANSFER
NUCLEONS
PARTICLE MODELS
PARTICLE PROPERTIES
POLARIZATION
POSTULATED PARTICLES
PROTONS
QUARKS
SPIN