Measurement E151M642

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_UL
ε_L:	0.0779
Q²:	0.0707 GeV²
W:	1565.0 GeV
E_beam:	1.9889 GeV
ε:	0.8407

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.25	282.0	2.085	0.809
0.35	78.0	-0.7561	0.6843
0.35	270.0	-0.8266	0.6905
0.35	282.0	-0.4239	0.7294
0.45	66.0	0.3286	0.7301
0.45	78.0	-0.2071	0.6823
0.45	138.0	-0.3743	0.7628
0.45	258.0	1.2839	0.8154
0.45	270.0	-0.6461	0.566
0.45	282.0	-0.2726	0.5434
0.45	294.0	-0.6565	0.6127
0.55	78.0	0.493	0.7806
0.55	90.0	1.1368	0.8985
0.55	114.0	-0.5563	0.6814
0.55	210.0	1.6159	0.7528
0.55	222.0	1.172	0.6954
0.55	234.0	1.0304	0.6677
0.55	258.0	-0.2159	0.7115
0.55	270.0	0.2995	0.6161
0.55	282.0	-0.5565	0.5092
0.65	102.0	-0.4154	0.6529
0.65	114.0	0.7344	0.7393
0.65	126.0	-0.2646	0.5764
0.65	150.0	-0.1343	0.7089
0.65	198.0	0.7566	0.7677
0.65	210.0	0.2537	0.7065
0.65	222.0	0.8721	0.748
0.65	234.0	1.2007	0.6829
0.65	270.0	0.1016	0.71
0.65	282.0	-0.4354	0.7198
0.65	294.0	-0.0353	0.7943
0.75	66.0	-0.5023	0.6258
0.75	114.0	-0.2357	0.668
0.75	126.0	0.5956	0.6246
0.75	138.0	0.0793	0.7018
0.75	150.0	-0.9093	0.727
0.75	198.0	0.5367	0.8038
0.75	210.0	0.1651	0.7221
0.75	222.0	0.6964	0.5133
0.75	234.0	1.5874	0.5964
0.75	246.0	-0.2655	0.6757
0.75	270.0	-1.5098	0.5116
0.75	282.0	0.8548	0.6165
0.75	294.0	1.8045	0.6396
0.85	102.0	-0.71	0.6068
0.85	114.0	0.1629	0.6797
0.85	138.0	-1.6067	0.5061
0.85	198.0	0.4003	0.8608
0.85	210.0	-0.024	0.5475
0.85	222.0	0.1358	0.5623
0.85	234.0	0.6425	0.6095
0.85	246.0	0.7353	0.5332
0.95	114.0	0.7672	0.7585
0.95	222.0	1.2734	0.6901
0.95	234.0	0.5714	0.6281

CLAS Physics Database