CLAS Physics Database

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Measurement E25M31

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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 :	1.83 — 1.97 GeV²
x_b :	0.315 — 0.331

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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
0.323	1.96	0.174	12.97	0.036	0.151
0.323	1.94	0.168	45.123	0.148	0.123
0.322	1.97	0.176	71.06	0.135	0.163
0.32	1.9	0.185	101.01	0.63	0.315
0.322	1.97	0.162	128.313	-0.409	0.747
0.315	1.89	0.191	202.315	-1.243	1.243
0.319	1.83	0.182	230.807	-0.252	0.574
0.321	1.92	0.17	253.233	-0.182	0.28
0.331	1.96	0.182	288.798	0.148	0.217
0.32	1.94	0.172	315.357	0.08	0.134
0.323	1.94	0.175	342.237	-0.201	0.145