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Measurement E15M80

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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. The abscissa (arguments n = 1 - 15) corresponds to the following list of matrix elements: r0004, Re r1004, r1-104, r001, r111, Re r101, r1-11, Im r102, Im r1-12, r005, r115, Re r105, r1-15, Im r106, Im r1-16. Virtual photon polarization parameter ε = 0.591. Mandelstam variable –t = 1.363 GeV2. Errors include systematics, added in quadrature.

Publication:

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

Q2 : 3.818 GeV2
W : 1.914 GeV
xb : 0.579
ε : 0.591

Observable quantity measured (Y axis): r, dimensionless
Plot measurement data

Parameter (X axis): n, number of argument from the list

Click here to get data in text file, delimited with tabs.

Measured data:

n,
number of argument from the list
r,
dimensionless
Data errors,
dimensionless
1 0.31 0.09
2 0.15 0.06
3 -0.1 0.09
4 0.2 0.25
5 0.11 0.14
6 -0.17 0.14
7 -0.46 0.19
8 -0.25 0.13
9 -0.48 0.2
10 -0.25 0.1
11 -0.16 0.07
12 -0.13 0.06
13 -0.03 0.09
14 -0.06 0.07
15 -0.02 0.09