Measurement E151M1269

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:	0.1168
Q²:	0.0205 GeV²
W:	1265.0 GeV
E_beam:	1.0539 GeV
ε:	0.8868

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.15	42.0	0.8249	0.7288
0.25	42.0	-0.3812	0.5301
0.25	54.0	-0.2174	0.5524
0.35	30.0	-0.6886	0.6486
0.35	42.0	-0.0345	0.5332
0.35	54.0	0.0819	0.5845
0.35	66.0	-0.0518	0.6404
0.45	30.0	-0.9445	0.6009
0.45	42.0	-0.9926	0.4419
0.45	54.0	0.7583	0.6083
0.45	258.0	0.237	0.6192
0.45	270.0	0.0712	0.586
0.45	282.0	0.0603	0.6852
0.55	42.0	-0.1364	0.5453
0.55	54.0	-0.1731	0.6971
0.55	234.0	0.3347	0.5232
0.55	246.0	-0.0416	0.4112
0.55	258.0	0.3576	0.3459
0.55	270.0	0.2483	0.3959
0.55	282.0	0.7674	0.459
0.65	138.0	-1.0704	0.5883
0.65	150.0	-0.7767	0.6995
0.65	162.0	0.5554	0.6309
0.65	174.0	-1.2822	0.6467
0.65	186.0	0.0305	0.6774
0.65	198.0	0.6039	0.7028
0.65	222.0	0.1512	0.5702
0.65	234.0	0.3171	0.3724
0.65	246.0	-0.1762	0.3174
0.65	258.0	-0.2803	0.2856
0.65	270.0	-0.644	0.3791
0.65	282.0	0.1921	0.5265
0.75	138.0	-1.1965	0.5378
0.75	150.0	0.0802	0.442
0.75	162.0	-0.7148	0.4369
0.75	174.0	0.2648	0.4362
0.75	186.0	0.3787	0.4707
0.75	198.0	0.9787	0.5165
0.75	210.0	0.1538	0.5051
0.75	222.0	-0.8436	0.431
0.75	234.0	-0.1431	0.3844
0.75	246.0	-0.1551	0.3019
0.75	258.0	0.2315	0.2818
0.75	270.0	0.5238	0.3433
0.75	282.0	0.5728	0.432
0.85	138.0	0.1674	0.5428
0.85	150.0	-0.1596	0.429
0.85	162.0	-0.8133	0.4403
0.85	174.0	0.2928	0.4802
0.85	186.0	0.4403	0.5368
0.85	198.0	0.2013	0.5594
0.85	210.0	-0.1234	0.5421
0.85	222.0	-0.1711	0.4998
0.85	234.0	0.1897	0.3616
0.85	246.0	-0.1865	0.3048
0.85	258.0	-0.2232	0.3235
0.85	270.0	0.3004	0.4467

CLAS Physics Database