CLAS Physics Database

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Measurement E151M753

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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 :	1295 GeV
ε :	0.966
E_beam :	2.2596 GeV
ε_L:	0.3199

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	Stat. error	Syst. error
0.15	306	0.4555	0.4072	0.0442
0.25	66	-0.6173	0.3	0.053
0.25	78	0.4705	0.4854	0.0431
0.25	294	0.0068	0.3593	0.0573
0.25	306	-0.2669	0.3158	0.0354
0.35	66	-0.5303	0.272	0.0464
0.35	78	0.1402	0.2977	0.0321
0.35	282	0.4498	0.5176	0.0421
0.35	294	0.1637	0.3074	0.0322
0.35	306	-0.3839	0.3176	0.0436
0.45	66	0.0421	0.3017	0.0314
0.45	78	0.189	0.2895	0.0341
0.45	90	0.239	0.4713	0.0481
0.45	282	-0.3312	0.3563	0.0399
0.45	294	0.2071	0.3576	0.0334
0.55	66	0.0913	0.4374	0.0306
0.55	78	0.3219	0.3126	0.0367
0.55	90	1.2277	0.4369	0.086
0.55	270	-0.5242	0.3683	0.0456
0.55	282	-0.6522	0.3694	0.0523
0.55	294	0.0579	0.4898	0.0302
0.65	78	-0.1338	0.3791	0.0313
0.65	90	0.2197	0.4558	0.0333
0.65	102	0.518	0.4509	0.0453
0.65	114	0.3938	0.5041	0.0396
0.65	246	-0.3413	0.4067	0.0374
0.65	258	0.5265	0.4094	0.0458
0.65	270	0.1741	0.3754	0.0321
0.65	282	0.1191	0.4158	0.031
0.75	90	0.8146	0.4818	0.0613
0.75	102	-0.0476	0.3769	0.0302
0.75	114	0.2201	0.3745	0.0333
0.75	126	1.0087	0.3905	0.0727
0.75	138	0.9434	0.4908	0.0688
0.75	222	-0.2106	0.5972	0.033
0.75	234	-0.2423	0.3891	0.034
0.75	246	0.0482	0.3244	0.0302
0.75	258	-0.3493	0.3083	0.0378
0.75	270	-0.3457	0.3139	0.0376
0.75	282	-0.3257	0.4192	0.0368
0.85	102	0.5904	0.3817	0.049
0.85	114	0.0869	0.3426	0.0305
0.85	126	0.6611	0.4082	0.0527
0.85	138	0.8101	0.4233	0.061
0.85	150	-0.1645	0.4922	0.0319
0.85	162	-0.89	0.4712	0.0657
0.85	210	-0.1553	0.5644	0.0317
0.85	222	0.0395	0.4498	0.0301
0.85	234	0.0267	0.4313	0.0301
0.85	246	-0.0887	0.3334	0.0306
0.85	258	0.1502	0.3167	0.0316
0.85	270	0.0766	0.3565	0.0304
0.85	282	0.7768	0.609	0.0591
0.95	114	1.7179	0.9449	0.1167
0.95	126	-0.1621	0.7762	0.0318
0.95	138	1.0076	0.8735	0.0726
0.95	150	1.5315	0.8884	0.1049
0.95	162	-0.2163	0.8761	0.0332
0.95	174	-1.1967	0.8853	0.0841
0.95	186	-0.634	1.0339	0.0513
0.95	210	1.4021	1.0022	0.0968
0.95	222	0.816	0.904	0.0614
0.95	234	2.6302	0.7974	0.1752
0.95	246	0.7438	0.7864	0.0573
0.95	258	0.5779	0.8749	0.0484
0.95	270	-0.3012	0.8503	0.0359
0.45	306	-1.1478	1.1286	0.1101
0.55	66	-0.6038	1.5222	0.0633
0.55	78	-0.9715	1.0616	0.0946
0.55	90	-2.0717	1.1513	0.1935
0.55	270	-0.6212	1.1782	0.0647
0.55	282	0.1998	1.2524	0.0352
0.55	294	2.8101	1.2714	0.2611
0.65	78	-0.6374	1.1582	0.066
0.65	90	-1.2588	1.4914	0.12
0.65	102	1.5187	1.7168	0.1433
0.65	114	1.8191	1.6885	0.1706
0.65	246	0.6616	1.2959	0.068
0.65	258	1.5155	0.9804	0.143
0.65	270	-0.3981	0.984	0.0474
0.65	282	2.2927	1.2468	0.2137
0.75	102	0.4183	1.2586	0.0489
0.75	114	0.6765	1.1142	0.0693
0.75	126	-1.2528	1.0836	0.1195
0.75	138	0.1825	1.8465	0.0344
0.75	234	0.3483	1.2433	0.044
0.75	246	0.0161	1.1516	0.03
0.75	258	0.8232	0.9493	0.0817
0.75	270	-1.1316	0.988	0.1087
0.75	282	-1.4142	1.1547	0.1339
0.85	102	3.7207	1.5828	0.3447
0.85	114	-2.3297	1.1831	0.2171
0.85	126	-1.5239	1.1723	0.1438
0.85	138	-0.0276	1.2673	0.0301
0.85	150	3.5838	1.7708	0.3321
0.85	162	1.2727	1.6909	0.1212
0.85	186	-1.9069	1.7075	0.1785
0.85	210	-1.6948	1.6175	0.1593
0.85	222	-1.6401	1.4623	0.1543
0.85	234	-0.9511	1.2715	0.0928
0.85	246	-0.3871	1.0168	0.0467
0.85	258	0.8518	0.9278	0.0841
0.85	270	1.6371	1.2387	0.154
0.95	114	-0.9705	5.099	0.0945
0.95	126	-7.9626	3.6705	0.7355
0.95	138	9.8526	4.9762	0.9098
0.95	150	0.0113	5.2127	0.03
0.95	186	9.2207	5.6569	0.8515
0.95	198	-6.2758	4.4736	0.58
0.95	222	2.3918	4.6512	0.2228
0.95	234	-0.7444	4.0296	0.075
0.95	246	1.1182	4.1985	0.1075
0.95	258	-1.7645	4.1902	0.1656