Quark-hadron duality in neutron (3He) spin structure.

نویسندگان

  • P Solvignon
  • N Liyanage
  • J-P Chen
  • Seonho Choi
  • K Aniol
  • T Averett
  • W Boeglin
  • A Camsonne
  • G D Cates
  • C C Chang
  • E Chudakov
  • B Craver
  • F Cusanno
  • A Deur
  • D Dutta
  • R Ent
  • R Feuerbach
  • S Frullani
  • H Gao
  • F Garibaldi
  • R Gilman
  • C Glashausser
  • V Gorbenko
  • O Hansen
  • D W Higinbotham
  • H Ibrahim
  • X Jiang
  • M Jones
  • A Kelleher
  • J Kelly
  • C Keppel
  • W Kim
  • W Korsch
  • K Kramer
  • G Kumbartzki
  • J J Lerose
  • R Lindgren
  • B Ma
  • D J Margaziotis
  • P Markowitz
  • K McCormick
  • Z-E Meziani
  • R Michaels
  • B Moffit
  • P Monaghan
  • C Munoz Camacho
  • K Paschke
  • B Reitz
  • A Saha
  • R Sheyor
  • J Singh
  • K Slifer
  • V Sulkosky
  • A Tobias
  • G M Urciuoli
  • K Wang
  • K Wijesooriya
  • B Wojtsekhowski
  • S Woo
  • J-C Yang
  • X Zheng
  • L Zhu
چکیده

We present experimental results of the first high-precision test of quark-hadron duality in the spin-structure function g_{1} of the neutron and 3He using a polarized 3He target in the four-momentum-transfer-squared range from 0.7 to 4.0 (GeV/c);{2}. Global duality is observed for the spin-structure function g_{1} down to at least Q;{2}=1.8 (GeV/c);{2} in both targets. We have also formed the photon-nucleon asymmetry A1 in the resonance region for 3He and found no strong Q2 dependence above 2.2 (GeV/c);{2}.

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عنوان ژورنال:
  • Physical review letters

دوره 101 18  شماره 

صفحات  -

تاریخ انتشار 2008