Measurement E151M1980

Experiment:	EG4
Year:	2016	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).
Spokesperson:	Xiaochao Zheng
Reaction:	ep → π⁺n
Polarization:	beam (longitudinal), target (longitudinal)
Quantity:	A_LL
ε_L:	0.6101
Q²:	0.1715 GeV²
W:	1295.0 GeV
E_beam:	2.2596 GeV
ε:	0.9468

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.25	66.0	-0.0667	0.4391
0.35	66.0	-0.576	0.4349
0.35	78.0	-0.1201	0.6051
0.65	102.0	-0.0442	0.6285
0.65	258.0	-0.59	0.5429
0.65	270.0	0.2922	0.4269
0.65	282.0	0.2725	0.6053
0.75	78.0	0.8721	0.4718
0.75	90.0	0.2564	0.6259
0.75	102.0	-0.7278	0.5479
0.75	114.0	0.7684	0.59
0.75	258.0	0.3555	0.5548
0.75	270.0	0.5126	0.4955
0.75	282.0	-0.2867	0.4408
0.75	294.0	0.1105	0.5389
0.85	78.0	-0.2753	0.6282
0.85	90.0	0.4873	0.4852
0.85	102.0	0.0443	0.5096
0.85	114.0	0.0082	0.449
0.85	126.0	0.1483	0.6587
0.85	234.0	-0.7364	0.7547
0.85	246.0	0.4635	0.6473
0.85	258.0	-0.7066	0.5038
0.85	270.0	-0.3291	0.4285
0.85	282.0	0.154	0.533
0.85	294.0	-0.8583	0.478
0.95	102.0	1.3611	0.8666
0.95	114.0	0.6242	0.874
0.95	126.0	1.1748	0.9653
0.95	138.0	-0.8672	0.8791
0.95	246.0	-0.5854	1.1008
0.95	258.0	0.5853	0.8892
0.95	270.0	0.6976	0.9324
0.95	282.0	0.0089	0.8309
0.95	294.0	0.2242	0.9509
0.15	66.0	-0.992	1.8157
0.35	66.0	0.8596	1.7096
0.45	78.0	-1.1068	1.8289
0.55	282.0	1.5808	1.5176
0.65	270.0	2.1034	1.288
0.65	282.0	0.1277	1.4866
0.65	294.0	-0.9287	1.5928
0.75	90.0	2.9703	1.7986
0.75	102.0	-0.23	1.4907
0.75	246.0	5.3212	5.3212
0.75	258.0	-0.6539	1.502
0.75	270.0	0.1681	1.2959
0.75	282.0	-0.6143	1.3813
0.85	78.0	0.6644	2.1362
0.85	90.0	2.7735	1.8177
0.85	102.0	1.2186	1.6894
0.85	114.0	1.0484	1.89
0.85	126.0	-0.8169	2.2621
0.85	138.0	-1.9184	2.3382
0.85	246.0	-0.2433	1.6078
0.85	258.0	2.559	1.5186
0.85	270.0	-0.4914	1.3671
0.85	282.0	-0.6942	1.6384
0.85	294.0	0.9015	1.8552
0.95	90.0	2.8165	5.3428
0.95	102.0	9.0509	5.209
0.95	114.0	-2.0303	5.6757
0.95	126.0	-5.0459	6.0513
0.95	138.0	-2.4218	6.153
0.95	246.0	0.9171	5.2814
0.95	270.0	5.9821	4.5431
0.95	282.0	-3.2123	5.0302

CLAS Physics Database