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Electron scattering from polarized deuterium at VEPP-3

Conference ·
OSTI ID:10105054

The experiment to measure the tensor analyzing power T{sub 20} of the deuteron using a tensor-polarized internal target at the VEPP-3 electron storage ring in Novosibirsk is currently in its second phase. Tensor-polarized deuterium atoms from an atomic beam source feed an active storage cell in the electron ring, serving as the target for a beam of 2 GeV unpolarized electrons. Analysis of the first Phase 2 data in the kinematic range Q{sup 2} = 0.36 {minus} 0.50 (GeV/c){sup 2} is reported here. Plans for the third phase of the experiment, which will use a high-density, laser-driven polarized deuterium target, are also discussed. The measurement of T{sub 20} from the second and third phases of the experiment will cover the kinematic region 0.36 {le} q {le} 0.90 (GeV/c){sup 2} where T{sub 20} is particularly sensitive to isoscalar meson exchange currents.

Research Organization:
Argonne National Lab., IL (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
W-31109-ENG-38
OSTI ID:
10105054
Report Number(s):
ANL/PHY/CP--80398; CONF-9308164--6; ON: DE94003204
Country of Publication:
United States
Language:
English