CLAS Physics Database

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Measurement E25M27

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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 :	2.09 — 2.38 GeV²
x_b :	0.237 — 0.287

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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
0.287	2.38	0.279	20.451	0	0.294
0.259	2.23	0.3	48.472	0.052	0.075
0.254	2.21	0.3	76.527	0.02	0.047
0.25	2.19	0.296	103.707	0.044	0.042
0.245	2.16	0.302	134.169	0.027	0.059
0.237	2.09	0.287	163.848	0.117	0.075
0.249	2.2	0.29	198.136	0.064	0.056
0.251	2.2	0.305	224.996	-0.113	0.051
0.252	2.2	0.298	256.273	-0.215	0.043
0.251	2.19	0.303	283.327	-0.02	0.045
0.261	2.25	0.291	310.422	-0.064	0.074
0.283	2.32	0.248	339.467	-0.369	0.267