Phys. Rev. D 63, 094008 (2001) [9 pages]Moments of the proton F2 structure function at low Q2 |
PRL Celebrates 50 Years
This Week's Milestone Letters are from 1981: |
C. S. Armstrong1, R. Ent1, C. E. Keppel1,2, S. Liuti3,4, G. Niculescu5, and I. Niculescu1,6
1Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606
2Hampton University, Hampton, Virginia 23668
3University of Virginia, Charlottesville, Virginia 22901
4INFN Sezione di Roma Tre, Roma, Italy
5Ohio University, Athens, Ohio 45071
6The George Washington University, Washington, D.C. 20052
Received 5 July 2000; published 30 March 2001
We investigate the Q2 dependence of inclusive electron-proton scattering F2 structure function data in both the nucleon resonance region and the deep inelastic region, at momentum transfers below 5 (GeV/c)2. From these data we construct moments of F2, down to momentum transfers of Q2≈0.1 (GeV/c)2. The second moment is only slowly varying with Q2 down to Q2≈1 (GeV/c)2, which is a reflection of duality. Below Q2 of 1 (GeV/c)2, the Q2 dependence of the moments is predominantly governed by the elastic contribution, whereas the inelastic channels still seem governed by local duality.
©2001 The American Physical Society
URL: http://link.aps.org/abstract/PRD/v63/e094008
DOI: 10.1103/PhysRevD.63.094008
PACS: 13.60.Hb, 12.38.Qk
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