What can we learn from the recent measurements of the spin-dependent structure function [ital g][sub 1]([ital x])

Journal Article · Mon Nov 01 04:00:00 EST 1993 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.48.R3945· OSTI ID:6132939

Li, Z ^[1]

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1. Physics Department, Carnegie-Mellon University, Pittsburgh, Pennsylvania 15213-3890 (United States)

In this paper, we argue that the effects of the Drell-Hearn-Gerasimov (DHG) sum rule should be included to extract the sum rule of polarized neutrons from the recent Spin Muon Collaboration measurement of the spin-dependent structure function [ital g][sub 1]([ital x]) of the deuteron, since the measurement was obtained at fairly low [ital Q][sup 2]. The value [Gamma][equivalent to][integral][sub 0][sup 1][ital g][sub 1]([ital x])[ital dx] could be modified significantly at [ital Q][sup 2] around 2--4 GeV[sup 2] by the high twist effects connected with the DHG sum rule. More accurate data for the spin-dependent structure function in the resonance region are needed to obtain reliable information on [Gamma] for the polarized protons and neutrons.

• OSTI ID: 6132939
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 48:9; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

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72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR MOMENTUM
BARYONS
CHARGED PARTICLES
DEUTERONS
ELEMENTARY PARTICLES
EMC EFFECT
EQUATIONS
FERMIONS
FUNCTIONS
HADRONS
NEUTRONS
NUCLEONS
PARTICLE PROPERTIES
POLARIZATION
PROTONS
RESONANCE
SPIN
STRUCTURE FUNCTIONS
SUM RULES