CLAS Physics Database

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Measurement E25M19

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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 :	1.65 — 1.76 GeV²
x_b :	0.246 — 0.278

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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
0.26	1.71	0.769	23.901	0.157	0.095
0.251	1.69	0.782	46.458	0.087	0.033
0.246	1.69	0.76	70.491	0.053	0.044
0.251	1.72	0.736	102.278	0.093	0.175
0.269	1.72	0.783	136.333	0	0.15
0.261	1.7	0.791	166.257	0.146	0.092
0.258	1.65	0.772	190.655	0.023	0.132
0.278	1.76	0.837	217.932	-0.179	0.165
0.246	1.67	0.816	259.691	-0.063	0.087
0.246	1.69	0.752	287.222	-0.023	0.041
0.253	1.7	0.772	314.745	-0.123	0.036
0.262	1.7	0.773	334.651	-0.12	0.105