Happex publications
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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

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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)


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