Publications [#246200] of Haiyan Gao

Papers Published
  1. with al, GLE, Measurement of the Generalized Polarizabilities of the proton, Physical Review Letters, vol. 93 no. 12 (2004), pp. 122001(Jefferson Lab Hall A Collaboration.) [doi] .

    The generalized polarizabilities (GP) of proton at low c.m. energies were investigated in virtual Compton scattering (VCS). At momentum transfer Q 2 = 0.92 and 1.76 GeV2, the structure functions and the electric and magnetic GP were determined. The global behavior of electric GP did not follow a simple dipole form and indicated a strong falloff with Q 2. A paramagnetic contribution from πN intermediate states at higher Q2 compensated the dominance of a long-distance diamagnetic pion cloud at low Q2.