CLAS Physics Database

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Measurement E25M13

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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 :	1.43 — 1.57 GeV²
x_b :	0.159 — 0.185

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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
0.185	1.57	0.596	27.076	32.26	576
0.179	1.56	0.508	49.308	-0.015	0.084
0.177	1.56	0.488	75.168	0.052	0.059
0.178	1.57	0.493	103.746	0.186	0.055
0.176	1.55	0.486	133.259	0.126	0.071
0.172	1.54	0.476	164.016	0.051	0.081
0.173	1.55	0.483	194.895	0.027	0.082
0.173	1.54	0.483	226.254	0.016	0.065
0.175	1.55	0.49	256.092	-0.054	0.056
0.178	1.56	0.495	283.992	-0.063	0.056
0.177	1.56	0.502	308.831	0.065	0.102
0.159	1.43	0.56	340.647	-1.202	1.7