CLAS Physics Database

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Measurement E42M1

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Experiment: eg1b, 2000

Spokespersons: H.Avakian

Publication:

H. Avakian, P. Bosted, V.D. Burkert, L. Elouadrhiri, and CLAS Collaboration Measurement of Single and Double Spin Asymmetries in Deep Inelastic Pion Electroproduction with a Longitudinally Polarized Target // Phys. Rev. Lett. 105:262002,2010

Quantity measured: A₁, dimensionless
Double-spin asymmetry.
Beam: e, polarization: polarized
Target: p (Z=1, A=1), polarization: longitudinal
Final state: π⁺+X, polarization: none

Q² :	0 GeV²
x_b :	0.15 — 0.45

Observable quantity measured (Y axis): A₁, dimensionless
Plot measurement data

Parameter (X axis): x, dimensionless

Click here to get data in text file, delimited with tabs.

Measured data:

x, dimensionless	A₁, dimensionless	Data errors, dimensionless
0.15	0.2352	0.0466
0.21	0.3169	0.026
0.27	0.371	0.0253
0.33	0.468	0.03
0.39	0.5084	0.0384
0.45	0.6268	0.0544