Measurement E151M2118

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:	0.0457
Q²:	0.0496 GeV²
W:	1625.0 GeV
E_beam:	2.2596 GeV
ε:	0.8561

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.45	78.0	0.0597	0.8672
0.45	102.0	-1.3787	0.9323
0.45	258.0	0.1734	0.7721
0.45	270.0	0.1358	0.72
0.55	258.0	0.2176	0.8554
0.55	270.0	0.4855	0.6449
0.65	114.0	0.9803	0.8494
0.65	126.0	1.3749	0.9018
0.65	138.0	-1.6995	0.9252
0.65	210.0	0.2276	0.8473
0.65	282.0	0.1911	0.7823
0.75	126.0	-1.5808	0.8722
0.75	198.0	-0.0999	1.0179
0.75	210.0	0.32	0.9326
0.75	222.0	-0.2708	0.8775
0.75	270.0	0.2798	0.6134
0.75	282.0	-1.0476	0.6043
0.85	90.0	-0.5626	1.0995
0.85	102.0	0.4658	1.0611
0.85	114.0	-0.7917	0.8859
0.85	126.0	-0.5127	1.0993
0.85	198.0	-1.758	0.9525
0.85	222.0	-0.3443	0.8351
0.85	246.0	-1.5749	0.9107
0.35	78.0	-0.7753	0.6826
0.45	126.0	-0.2923	0.9363
0.45	270.0	-0.2714	0.8323
0.55	138.0	-0.6095	0.9094
0.55	246.0	0.3575	0.9189
0.55	258.0	-0.3582	0.8358
0.55	270.0	0.1236	0.7668
0.55	282.0	-1.8684	0.6745
0.65	78.0	-0.6588	0.7909
0.65	114.0	0.5421	0.7931
0.65	126.0	0.1673	0.6952
0.65	198.0	-1.7509	0.9532
0.65	210.0	0.1559	0.86
0.65	222.0	0.6664	0.9302
0.65	282.0	-0.8154	0.7699
0.65	294.0	1.2408	0.7548
0.75	66.0	-0.4058	0.6756
0.75	210.0	-0.3067	0.968
0.75	222.0	0.3638	0.8934
0.75	270.0	-0.1699	0.8367
0.75	282.0	-0.7148	0.823
0.75	294.0	0.4316	0.7758
0.85	102.0	-0.2828	0.7945
0.85	114.0	0.3264	0.8871
0.85	198.0	-1.2817	1.0094
0.85	210.0	-0.7965	0.838
0.85	270.0	0.8231	0.9079

CLAS Physics Database