CLAS Physics Database

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Measurement E151M320

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Experiment: EG4, 2016

Spokespersons: Xiaochao Zheng

Experiment comment: Final asymmetry results for the ep-> e pi+ (n) channel extracted from CLAS/EG4 data obtained using a longitudinally polarized beam and a longitudinally polarized NH3 target (CAA HS07-02).

No publications available for this experiment

Quantity measured: A_UL,
Target spin asymmetry.
Beam: e, polarization: longitudinal
Target: p (Z=1, A=1), polarization: longitudinal
Final state: π⁺n, polarization: none

Q² :	0.0707 GeV²
W :	1385 GeV
ε :	0.824
E_beam :	1.3383 GeV
ε_L:	0.1671

Select data slice:
cos(θ_π⁺) =

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

Parameter (X axis): φ(π⁺), degrees

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

Measured data:

cos(θ_π⁺)	φ(π⁺), degrees	A_UL	Data errors	Systematic errors
0.55	234	0.2169	0.6422	0.0329
0.55	246	-0.0273	0.4912	0.0302
0.55	258	-0.8705	0.4563	0.0752
0.65	126	-0.7462	0.4772	0.0553
0.65	138	-0.257	0.4862	0.034
0.65	222	-0.4967	0.5383	0.0493
0.65	234	-0.1336	0.4659	0.0334
0.65	246	0.5924	0.3678	0.0472
0.65	258	0.0195	0.3781	0.0337
0.65	270	-0.4241	0.4017	0.0458
0.75	114	-1.1612	0.4322	0.0944
0.75	126	0.4931	0.4017	0.0524
0.75	138	-0.4193	0.4242	0.0455
0.75	150	0.1801	0.4778	0.033
0.75	162	-1.0333	0.6828	0.0691
0.75	210	0.372	0.6033	0.0378
0.75	222	-0.2101	0.442	0.0422
0.75	234	0.1753	0.4177	0.0348
0.75	246	0.2045	0.3507	0.0357
0.75	258	-0.2618	0.3031	0.0357
0.75	270	0.7807	0.515	0.0567
0.85	102	0.2617	0.6236	0.0341
0.85	114	-0.3357	0.6367	0.0365
0.85	126	-0.6581	0.3681	0.0503
0.85	138	-0.6439	0.4927	0.0608
0.85	150	-0.8172	0.3784	0.0602
0.85	162	0.0262	0.5574	0.03
0.85	222	0.1544	0.7908	0.0314
0.85	234	-0.3176	0.3682	0.0412
0.85	246	0.3011	0.341	0.0353
0.85	258	0.3233	0.3623	0.0413
0.85	270	0.0802	0.3307	0.0352
0.95	102	-0.0083	0.7547	0.03
0.95	114	1.2775	0.9412	0.0826
0.95	234	-0.7312	0.4957	0.0533
0.95	246	0.7476	0.7474	0.0541
0.95	258	0.7109	0.7425	0.0523
0.95	270	-0.5013	0.5562	0.0426
0.95	282	-0.3408	0.5663	0.0363
0.85	282	-0.395	0.5361	0.0387
0.95	90	0.3127	0.5939	0.0357
0.95	102	-0.1375	0.4343	0.0312
0.95	114	-0.9592	0.4049	0.0665
0.95	126	-0.7048	0.4811	0.053
0.95	138	-0.0263	0.5786	0.03
0.95	234	0.5666	0.4487	0.0462
0.95	246	0.556	0.4464	0.0457
0.95	258	-0.086	0.4006	0.0305
0.95	270	-0.2794	0.4214	0.0346