Measurement E151M1533

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:	0.0394
Q²:	0.0143 GeV²
W:	1385.0 GeV
E_beam:	1.3383 GeV
ε:	0.8632

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.35	42.0	1.0138	0.6544
0.55	42.0	-0.788	0.7582
0.55	126.0	-0.6407	0.8352
0.55	222.0	0.1387	0.8357
0.55	234.0	-0.8343	0.7392
0.55	246.0	0.8499	0.7298
0.65	42.0	1.0313	0.8569
0.65	126.0	-1.0505	0.9064
0.65	138.0	-0.4581	0.7594
0.65	150.0	-0.0108	0.7535
0.65	162.0	0.2405	0.8966
0.65	210.0	-0.8747	0.8051
0.65	222.0	0.663	0.7397
0.65	234.0	-0.1375	0.5512
0.65	246.0	0.3211	0.6649
0.75	138.0	-0.3157	0.8388
0.75	150.0	-1.1564	0.745
0.75	210.0	-0.4167	0.6546
0.75	222.0	-1.4938	0.587
0.75	234.0	0.0116	0.5898
0.75	246.0	-0.4143	0.6719
0.75	258.0	0.1988	0.6462
0.85	210.0	-1.3178	0.7864
0.85	222.0	-0.9921	0.6226
0.85	234.0	-0.7734	0.5584
0.85	246.0	-0.7447	0.6334
0.45	42.0	-1.416	0.835
0.55	42.0	0.1366	0.8791
0.55	222.0	-0.4542	0.8905
0.55	234.0	2.1219	0.5526
0.55	246.0	-1.0293	0.8
0.65	126.0	0.4218	1.1347
0.65	138.0	0.3027	1.0525
0.65	210.0	-0.6089	0.9789
0.65	222.0	1.1103	0.8332
0.65	234.0	-1.0931	0.604
0.65	246.0	-0.3122	0.8535
0.75	138.0	-0.3793	1.1857
0.75	150.0	-0.1683	1.0873
0.75	210.0	-0.6246	1.1149
0.75	222.0	-0.6445	0.9424
0.75	234.0	1.1893	0.7127
0.75	246.0	0.9402	0.7025
0.75	258.0	1.3312	0.8774
0.85	210.0	0.2146	0.9902
0.85	222.0	1.7882	0.5225
0.85	234.0	-0.8806	0.6934
0.85	246.0	-0.8515	0.7753

CLAS Physics Database