CLAS Physics Database

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Measurement E25M52

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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 :	2.53 — 2.83 GeV²
x_b :	0.43 — 0.453

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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
0.447	2.75	0.505	14.108	-0.054	0.071
0.445	2.76	0.509	44.42	0.062	0.08
0.453	2.83	0.498	72.625	0	0.12
0.45	2.73	0.493	103.733	0.187	0.189
0.433	2.58	0.523	131.17	0.222	0.185
0.43	2.53	0.492	229.415	0.208	0.258
0.452	2.77	0.496	252.629	-0.114	0.155
0.451	2.78	0.5	285.555	-0.266	0.161
0.443	2.76	0.503	317.438	0.021	0.076
0.449	2.76	0.502	344.426	-0.059	0.065