CLAS Physics Database

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Measurement E25M18

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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 :	0.229 — 0.274

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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
0.272	1.75	0.478	20.448	-0.137	0.094
0.253	1.7	0.492	46.23	0.139	0.035
0.246	1.7	0.493	71.09	0.096	0.04
0.229	1.65	0.466	102.089	0.14	0.098
0.255	1.67	0.485	136.014	0.24	0.15
0.258	1.68	0.487	165.961	-0.137	0.106
0.255	1.68	0.486	195.686	-0.106	0.139
0.262	1.74	0.488	220.393	-0.191	0.171
0.231	1.65	0.478	262.106	0.106	0.09
0.243	1.69	0.49	286.095	-0.103	0.039
0.253	1.7	0.494	314.66	-0.058	0.039
0.274	1.76	0.485	338.755	-0.017	0.077