Measurement E151M1331

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:	0.043
Q²:	0.0143 GeV²
W:	1355.0 GeV
E_beam:	1.0539 GeV
ε:	0.7998

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.25	42.0	-0.2386	0.937
0.25	54.0	0.5596	0.9178
0.35	30.0	1.6898	0.769
0.35	42.0	0.2772	0.6052
0.35	54.0	-0.5434	0.6469
0.35	66.0	-1.2348	0.8598
0.45	18.0	1.2086	0.9266
0.45	30.0	-0.1975	0.8615
0.45	42.0	-0.6427	0.5442
0.45	54.0	-0.6497	0.6497
0.45	66.0	0.9297	0.9988
0.45	234.0	0.9102	0.788
0.55	18.0	-0.5151	0.8139
0.55	30.0	-0.3532	0.5959
0.55	42.0	1.187	0.4788
0.55	54.0	-0.1431	0.5575
0.55	66.0	-0.3055	0.9697
0.55	138.0	-1.4713	0.7681
0.55	150.0	0.2088	0.8311
0.55	162.0	-0.7817	1.0011
0.55	222.0	-0.1308	0.7323
0.55	234.0	-0.0152	0.5893
0.55	246.0	0.3486	0.545
0.55	258.0	0.1296	0.6836
0.65	30.0	0.0715	0.949
0.65	42.0	0.39	0.7889
0.65	54.0	0.2133	0.7761
0.65	138.0	0.6078	0.7761
0.65	150.0	-0.2815	0.7297
0.65	162.0	0.6192	0.8037
0.65	174.0	-0.7608	0.9262
0.65	186.0	-1.4874	0.8105
0.65	210.0	-0.4752	0.7136
0.65	222.0	0.4216	0.7253
0.65	234.0	0.9516	0.4968
0.65	246.0	0.0326	0.5155
0.65	258.0	-0.1705	0.6743
0.75	138.0	1.5317	0.674
0.75	150.0	1.2142	0.699
0.75	162.0	0.2675	0.717
0.75	174.0	-0.2047	0.8923
0.75	210.0	-0.0226	0.7888
0.75	222.0	0.2214	0.6698
0.75	234.0	0.4408	0.4869
0.75	246.0	-0.0862	0.4708
0.75	258.0	0.2286	0.5679
0.85	162.0	1.7943	0.7711
0.85	210.0	0.3311	0.8219
0.85	222.0	0.3484	0.6445
0.85	234.0	-0.319	0.5229
0.85	246.0	-0.6839	0.4684
0.85	258.0	-0.9866	0.4891
0.85	270.0	0.8354	0.7679
0.95	234.0	-0.3641	0.6638

CLAS Physics Database