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Measurement E15M90

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Experiment: E99-105, 2002

Spokespersons: M. Garçon, M. Guidal, E. S. Smith

Measurement comment: Omega spin matrix elements from method of moments, background unsubtracted. Data were integrated up to t' = t0 - t < 0.5 GeV2. Errors include systematics, added in quadrature.

Publication:

Quantity measured: Im r1-12, dimensionless
Spin matrix element.
Beam: e, polarization: none
Target: p (Z=1, A=1), polarization: none
Final state: ω p, polarization: none

Q2 : 1.89 — 3.818 GeV2
W : 1.855 — 2.469 GeV
xb : 0.267 — 0.579

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Measured data:

Q2,
GeV2
x,
dimensionless
W,
GeV
ε,
dimensionless
-t,
GeV2
Im r1-12,
dimensionless
Data errors,
dimensionless
1.89 0.267 2.469 0.566 0.481 -1.01 0.18
2.532 0.365 2.3 0.574 0.64 -0.15 0.17
2.028 0.348 2.171 0.706 0.611 -0.14 0.1
3.18 0.471 2.114 0.582 0.895 -0.73 0.24
2.534 0.463 1.957 0.735 0.906 -0.06 0.1
2.11 0.44 1.89 0.804 0.886 -0.09 0.09
3.818 0.579 1.914 0.591 1.363 -0.48 0.2
3.007 0.54 1.855 0.719 1.232 0.01 0.1