Moments of the neutron g₂ structure function at intermediate Q²
We present new experimental results of the ³He spin structure function g₂ in the resonance region at Q² values between 1.2 and 3.0 (GeV/c)². Spin dependent moments of the neutron were then extracted.Our main result, the inelastic contribution to the neutron d₂ matrix element, was found to be small (Q²) = 2.4 (GeV/c)² and in agreement with the Lattice QCD calculation. The Burkhardt-Cottingham sum rule for ³He neutron was tested with the measured data and using the Wandzura-Wilczek relation for the low x unmeasured region.
- Authors:
-
[1]
- Univ. of New Hampshire, Durham, NH (United States). et al.
- Publication Date:
- Report Number(s):
- JLAB-PHY-13-1718; DOE/OR/23177-2529; arXiv:1304.4497
Journal ID: ISSN 0556-2813; PRVCAN
- Grant/Contract Number:
- AC05-06OR23177; AC05-060R23177
- Type:
- Accepted Manuscript
- Journal Name:
- Physical Review. C, Nuclear Physics
- Additional Journal Information:
- Journal Volume: 92; Journal Issue: 1; Journal ID: ISSN 0556-2813
- Publisher:
- American Physical Society (APS)
- Research Org:
- Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
- Sponsoring Org:
- USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
- Contributing Orgs:
- Jefferson Lab E01-012 Collaboration
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS
- OSTI Identifier:
- 1194031
- Alternate Identifier(s):
- OSTI ID: 1194829
- Free Publicly Accessible Full Text
-
Accepted Manuscript (DOE)
- Publisher's Version of Record
- https://doi.org/10.1103/PhysRevC.92.015208