CLAS Physics Database

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Measurement E25M46

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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 :	2.71 — 2.88 GeV²
x_b :	0.306 — 0.328

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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
0.321	2.8	0.175	16.383	0.197	0.346
0.328	2.8	0.178	44.571	0	0.192
0.322	2.77	0.178	72.893	0.316	0.238
0.319	2.76	0.174	101.909	0.217	0.238
0.316	2.74	0.188	130.584	-0.317	0.462
0.306	2.71	0.185	167.721	0.421	0.543
0.317	2.71	0.189	196.822	-0.208	0.365
0.317	2.72	0.185	225.693	-0.289	0.408
0.319	2.77	0.183	252.552	0	0.221
0.328	2.88	0.176	281.3	-0.035	0.216
0.324	2.81	0.178	314.19	0.028	0.205
0.321	2.75	0.18	343.433	0.191	0.26