• A1n error 
• cartoon for A1 definition 
• d/u ratio  used to extract Dq/q

• CTEQ PDF at Q^2 = 5.0 (GeV/c)^2: color, no error  color, with error  color, no error, logx
• Feynman diagram for one photon exchange    gluon radiative correction at infinite and finite Q2
• Polar and azimuthal angles of the target spin
• nucleon response, 3D plot all  coherent  DIS
• World data on F2's: from NMC  from PDG F2p  F2d

• Polarized scattering longitudinal  transverse  with 3q
• Illustration of PDF: unpolarized  polarized: up-down  up  down
• The nucleon in CQM  PQCD  SU6
• The nucleon at high x  low x
• The quark spin as used in Science online  or DNP website

• The accelerator: ariel view with texts  schematic 2D topview and 3D view
• Hall A: picture  schematic floor plan
• HRS: schematic side-view  Gas Cherenkov ADC spectrum
• Helicity signal sequence: pseudo-random  toggle

• 3He ground state wavefunction
• He3 = neutron

• Schematic setup  Picture in the hall
• Picture of target cells with texts 40cm  25cm (Tilghman)
• 3He target laser setup
• target performance during E99-117  or summer 2001

Xiaochao Zheng
xiaochao@jlab.org
9700 S. Cass Ave.
Argonne, IL 60439
Tel: (630)252-3431
Back to Xiaochao's Homepage