CLAS Physics Database

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Measurement E25M24

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Experiment: e1-dvcs E06-003, 2007

Spokespersons: V. D. Burkert, L. Elouadrhiri, M. Gar�on, S. Stepanyan

Publication:

R. De Masi, M. Gar�on, B. Zhao, and CLAS Collaboration Beam spin asymmetry in deep and exclusive π⁰ electroproduction // arXiv:0711.4736

Quantity measured: A, dimensionless
Beam spin asymmetry.
Beam: e, polarization: polarized
Target: p (Z=1, A=1), polarization: none
Final state: π⁰p, polarization: none

Q² :	1.89 — 2 GeV²
x_b :	0.234 — 0.26

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

Measured data:

x, dimensionless	Q², GeV2	-t, GeV2	φ, deg	A, dimensionless	Data errors, dimensionless
0.247	1.94	0.821	26.261	-0.097	0.167
0.251	1.96	0.779	47.119	0.04	0.04
0.249	1.95	0.762	72.577	0.026	0.041
0.234	1.89	0.715	99.799	0.151	0.083
0.26	2	0.755	133.082	0.2	0.228
0.256	1.99	0.717	166.356	-0.065	0.179
0.259	1.97	0.856	193.772	0.139	0.226
0.245	1.93	0.732	226.919	0.236	0.214
0.237	1.91	0.737	260.377	-0.073	0.075
0.247	1.94	0.766	284.832	-0.075	0.038
0.252	1.96	0.784	313.598	-0.082	0.044
0.244	1.9	0.843	333.459	-0.566	0.227