Measurement E151M1393

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:	0.0311
Q²:	0.0205 GeV²
W:	1445.0 GeV
E_beam:	1.0539 GeV
ε:	0.6495

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.25	30.0	0.0586	0.8683
0.25	42.0	0.3967	0.8712
0.25	54.0	0.2234	0.7758
0.35	42.0	-0.8849	0.5526
0.35	54.0	-0.9376	0.5706
0.35	66.0	-1.5175	1.0217
0.45	30.0	1.5785	0.6436
0.45	42.0	0.2091	0.5946
0.45	54.0	-0.3376	0.5418
0.45	66.0	1.676	0.7869
0.45	222.0	-0.1818	0.7008
0.45	234.0	-1.5453	0.7202
0.45	246.0	2.0905	0.6117
0.45	258.0	-0.8633	0.8088
0.55	30.0	0.7076	0.8052
0.55	42.0	-1.1002	0.6653
0.55	54.0	-0.5888	0.6828
0.55	138.0	0.4657	0.9878
0.55	150.0	-2.4072	0.6632
0.55	162.0	-0.3177	0.8716
0.55	222.0	-0.9448	0.6679
0.55	234.0	-1.8626	0.5087
0.55	246.0	0.4042	0.5563
0.55	258.0	0.1732	0.8083
0.65	138.0	-0.9512	0.7898
0.65	150.0	0.8095	0.7537
0.65	162.0	-0.8815	0.6765
0.65	174.0	-0.6735	0.9059
0.65	210.0	-0.5616	0.8282
0.65	222.0	-0.1251	0.6606
0.65	234.0	0.1826	0.517
0.65	246.0	0.5021	0.5141
0.65	258.0	-0.502	0.6433
0.75	42.0	1.2798	0.8609
0.75	138.0	0.9089	0.8472
0.75	150.0	-0.5815	0.8756
0.75	162.0	0.5398	0.8804
0.75	210.0	0.4459	0.8161
0.75	222.0	-1.0828	0.597
0.75	234.0	-0.4463	0.5486
0.75	246.0	-0.5	0.5496
0.75	258.0	-0.1741	0.5751
0.85	222.0	0.2494	0.5969
0.85	234.0	0.1359	0.5049
0.85	246.0	-0.5856	0.4858
0.85	258.0	0.8685	0.645
0.95	234.0	-0.254	0.6647

CLAS Physics Database