Publications [#246156] of Haiyan Gao

Papers Published

1. Horn, T; Qian, X; al, E, Scaling Study of the Pion Electroprodeuction Cross Sections, Physical Review C, vol. 78 no. 5 (2008), pp. 058201, American Physical Society (APS), ISSN 0556-2813 [doi]
   (last updated on 2026/01/14)

   Abstract:
   The 1H(e,e'π+)n cross section was measured for arange of four-momentum transfer up to Q2=3.91 GeV2 at values of the invariant mass W above the resonance region. The Q2 dependence of the longitudinal component was found to be consistent with the Q2-scaling prediction for hard exclusive processes. This suggests that the QCD factorization theorem is applicable at rather low values of Q2. The transverse term falls off slower than the naive Q-8 expectation and remains appreciable even at Q2=3.91 GeV2. © 2008 The American Physical Society.