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:
http://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
- publisher
- American Physical Society
- external identifiers
-
- scopus:8644233025
- 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
- 2007-12-11 13:18:16
- date last changed
- 2019-02-03 05:04:56
@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.}, articleno = {022301}, 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}, volume = {92}, year = {2004}, }