CLAS Physics Database

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Measurement E151M2837

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

Q² :	0.0415 GeV²
W :	1505 GeV
ε :	0.7115
E_beam :	1.3383 GeV
ε_L:	0.0512

Select data slice:
cos(θ_π⁺) =

Observable quantity measured (Y axis): A_LU,
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_LU	Stat. error	Syst. error
0.45	30	0.1894	0.2162	0.0302
0.45	42	0.3124	0.2792	0.0306
0.45	222	-0.0594	0.2802	0.03
0.45	234	-0.4668	0.2289	0.0314
0.55	138	0.1967	0.2163	0.0303
0.55	162	0.3874	0.2201	0.031
0.55	210	0.384	0.2689	0.031
0.55	222	0.1339	0.2769	0.0301
0.55	234	-0.1521	0.2236	0.0302
0.55	246	-0.0597	0.2312	0.03
0.65	126	-0.2607	0.2521	0.0304
0.65	138	-0.021	0.2612	0.03
0.65	150	0.0305	0.2331	0.03
0.65	162	0.0461	0.2729	0.03
0.65	210	0.0148	0.211	0.03
0.65	222	-0.1211	0.1939	0.0301
0.65	234	-0.1275	0.1963	0.0301
0.65	246	-0.012	0.2155	0.03
0.65	258	-0.2517	0.249	0.0304
0.75	126	0.1264	0.2413	0.0301
0.75	138	-0.1925	0.2368	0.0302
0.75	150	-0.5711	0.2012	0.0321
0.75	162	0.4088	0.2135	0.0311
0.75	222	0.2158	0.2588	0.0303
0.75	234	-0.2099	0.2037	0.0303
0.75	246	0.2073	0.1965	0.0303
0.85	126	0.769	0.1967	0.0337
0.85	210	0.3713	0.2421	0.0309
0.85	222	-0.0589	0.2012	0.03
0.85	234	-0.0263	0.2067	0.03
0.85	246	-0.6144	0.1748	0.0324
0.35	30	0.0265	0.4163	0.03
0.35	42	-0.0654	0.345	0.03
0.45	30	-0.5198	0.3038	0.0318
0.45	42	0.9712	0.1114	0.0357
0.45	210	0.228	0.3894	0.0303
0.45	234	-0.2467	0.369	0.0304
0.45	246	-0.0071	0.431	0.03
0.55	42	0.409	0.3151	0.0311
0.55	138	0.0996	0.3717	0.0301
0.55	150	-0.0828	0.3899	0.03
0.55	210	0.1767	0.415	0.0302
0.55	222	0.1625	0.3351	0.0302
0.55	234	0.4667	0.2515	0.0314
0.55	246	-0.0723	0.3474	0.03
0.65	126	0.1143	0.3839	0.0301
0.65	150	-0.4205	0.3041	0.0312
0.65	210	0.2262	0.3002	0.0303
0.65	222	0.3236	0.2412	0.0307
0.65	234	-0.478	0.238	0.0315
0.65	246	-0.1397	0.2582	0.0301
0.75	138	-0.5841	0.2478	0.0322
0.75	150	-0.0486	0.3659	0.03
0.75	162	-0.2215	0.3021	0.0303
0.75	210	-0.5852	0.258	0.0322
0.75	222	0.1625	0.2957	0.0302
0.75	234	0.0716	0.3191	0.03
0.75	246	-0.2611	0.2423	0.0305
0.75	258	0.6879	0.2285	0.033
0.85	222	0.4166	0.2266	0.0311
0.85	234	0.1016	0.2922	0.0301
0.85	246	0.2966	0.2527	0.0306
0.85	258	0.4791	0.3663	0.0315
0.95	246	-0.3955	0.3358	0.031