Q2 Evolution of the Neutron Spin Structure Moments using a He-3 Target
(2004) In Physical Review Letters 92.- Abstract
- We have measured the spin structure functions g1 and g2 of 3He in a double-spin experiment by inclusively scattering polarized electrons at energies ranging from 0.862 to 5.058 GeV off a polarized 3He target at a 15.5° scattering angle. Excitation energies covered the resonance and the onset of the deep inelastic regions. We have determined for the first time the Q2 evolution of 1(Q2)=g1(x,Q2)dx, 2(Q2)=g2(x,Q2)dx, and d2(Q2)=x2[2g1(x,Q2)+3g2(x,Q2)]dx for the neutron in the range 0.1Q20.9 GeV2 with good precision. 1(Q2) displays a smooth variation from high to low Q2. The Burkhardt-Cottingham sum rule holds within uncertainties and d2 is nonzero over the measured range.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/713551
- author
- Amarian, M and Fissum, Kevin LU
- organization
- publishing date
- 2004
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review Letters
- volume
- 92
- article number
- 022301
- publisher
- American Physical Society
- external identifiers
-
- scopus:8644233025
- pmid:14753931
- ISSN
- 1079-7114
- DOI
- 10.1103/PhysRevLett.92.022301
- language
- English
- LU publication?
- yes
- id
- ab1f40e1-1e01-4c47-bbfc-66593e985f99 (old id 713551)
- date added to LUP
- 2016-04-04 12:14:23
- date last changed
- 2022-01-29 23:08:49
@article{ab1f40e1-1e01-4c47-bbfc-66593e985f99, abstract = {{We have measured the spin structure functions g1 and g2 of 3He in a double-spin experiment by inclusively scattering polarized electrons at energies ranging from 0.862 to 5.058 GeV off a polarized 3He target at a 15.5° scattering angle. Excitation energies covered the resonance and the onset of the deep inelastic regions. We have determined for the first time the Q2 evolution of 1(Q2)=g1(x,Q2)dx, 2(Q2)=g2(x,Q2)dx, and d2(Q2)=x2[2g1(x,Q2)+3g2(x,Q2)]dx for the neutron in the range 0.1Q20.9 GeV2 with good precision. 1(Q2) displays a smooth variation from high to low Q2. The Burkhardt-Cottingham sum rule holds within uncertainties and d2 is nonzero over the measured range.}}, author = {{Amarian, M and Fissum, Kevin}}, issn = {{1079-7114}}, language = {{eng}}, publisher = {{American Physical Society}}, series = {{Physical Review Letters}}, title = {{Q<sup>2</sup> Evolution of the Neutron Spin Structure Moments using a He-3 Target}}, url = {{http://dx.doi.org/10.1103/PhysRevLett.92.022301}}, doi = {{10.1103/PhysRevLett.92.022301}}, volume = {{92}}, year = {{2004}}, }