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Title: Direct observation of quark-hadron duality in the free neutron F2 structure function

Using data from the recent BONuS experiment at Jefferson Lab, which utilized a novel spectator tagging technique to extract the inclusive electron-free neutron scattering cross section, we obtain the first direct observation of quark-hadron duality in the neutron F2 structure function. In addition, the data are used to reconstruct the lowest few (N = 2, 4 and 6) moments of F2 in the three prominent nucleon resonance regions, as well as the moments integrated over the entire resonance region. Comparison with moments computed from global parametrizations of parton distribution functions suggest that quark--hadron duality holds locally for the neutron in the second and third resonance regions down to Q2 ≈ 1 GeV2, with violations possibly up to 20% observed in the first resonance region.
Authors:
 [1] ;  [1] ;  [2] ;  [3] ;  [4] ;  [2] ;  [5] ;  [4] ;  [2] ;  [6] ;  [7] ;  [7]
  1. James Madison Univ., Harrisonburg, VA (United States)
  2. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
  3. Argonne National Lab. (ANL), Argonne, IL (United States)
  4. Hampton Univ., Hampton, VA (United States)
  5. College of William and Mary, Williamsburg, VA (United States)
  6. Old Dominion Univ., Norfolk, VA (United States)
  7. Univ. of Virginia, Charlottesville, VA (United States)
Publication Date:
OSTI Identifier:
1182365
DOE Contract Number:
PHY-1307196; PHY-1002644; AC05-06OR23177; FG02-96ER40960; AC02-06CH11357; FG02-97ER41025; FG02-96ER41003
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. C, Nuclear Physics; Journal Volume: 91; Journal Issue: 5
Publisher:
American Physical Society (APS)
Research Org:
Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS