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HAPPEX publications. We should aim to prepare three publications, this year. Source (Kent, Gordon, Snyder) Jlab PVeS experimental review paper (Riad) Transverse Asymmetry (Kent, Armstrong) G0 transverse (arXiv:0705.1525v2) Long Paper (Kent, Armstrong, Michaels, and all!).

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happex publications

HAPPEX publications

We should aim to prepare three publications, this year

  • Source (Kent, Gordon, Snyder)
    • Jlab PVeS experimental review paper (Riad)
  • Transverse Asymmetry (Kent, Armstrong)
    • G0 transverse (arXiv:0705.1525v2)
  • Long Paper (Kent, Armstrong, Michaels, and all!)
charge symmetry
Charge Symmetry

Incidentally, not consistent with _our_ published calculation

HAPPEX-He

Viviani, Schiavilla, Kubis, Lewis, Girlanda, Keivsky, Marcucci, Rosati, nucl-th/070305

0.003 +/- ?

0.008 +/- 0.003

HAPPEX-II

GsE + 0.09 GsM = 0.007 +/- 0.011 +/- 0.004 +/- 0.005 (FF)

0.004-0.009

Kubis & Lewis, Phys Rev C 74 015204 (2006)

Charge symmetry breaking is largest theoretical uncertainty

HAPPEX-III will face a similar story

GsE + 0.48 GsM = +/- 0.007 +/- 0.004 +/- 0.008 (FF)

happex iii issues
HAPPEX-III Issues
  • LH2 target design (25 cm?)
  • Finite Acceptance simulation
  • Optics Calibration - 1 pass needed?
  • Detectors (status?)
  • PMT linearity
  • Scanner design (Q2 monitor strategy)