Measurement E151M1609

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:	0.019
Q²:	0.0143 GeV²
W:	1505.0 GeV
E_beam:	1.3383 GeV
ε:	0.7348

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.45	42.0	-0.6239	0.9338
0.45	138.0	-0.0515	1.1514
0.45	222.0	-0.4144	1.0159
0.55	30.0	1.4159	0.5973
0.55	42.0	0.3341	0.8928
0.55	150.0	-0.7146	0.8867
0.55	210.0	0.385	0.8475
0.55	222.0	-1.4933	0.5501
0.55	234.0	0.9236	0.8859
0.55	246.0	0.5021	0.9829
0.65	42.0	0.3816	1.0874
0.65	138.0	-0.704	0.9647
0.65	150.0	-1.0159	0.9339
0.65	198.0	-1.9315	0.5631
0.65	222.0	-0.9529	0.7192
0.65	234.0	0.1775	0.7757
0.65	246.0	0.2147	0.9266
0.75	198.0	0.6176	0.9649
0.75	210.0	0.3627	0.9936
0.75	222.0	-1.1991	0.9128
0.75	234.0	0.8383	0.6444
0.75	246.0	1.2737	0.747
0.85	210.0	0.6191	1.0074
0.85	222.0	-0.7162	0.773
0.85	234.0	0.6279	0.7298
0.85	246.0	-1.5001	0.7161
0.35	30.0	-0.0782	0.8192
0.35	42.0	0.0172	0.8759
0.45	30.0	-1.2041	0.6946
0.45	54.0	-1.4496	0.7952
0.45	222.0	-0.701	0.7132
0.45	234.0	0.5412	0.7765
0.55	18.0	-0.2139	0.8172
0.55	42.0	0.0876	0.6971
0.55	126.0	-0.1714	0.7408
0.55	138.0	-0.4577	0.664
0.55	150.0	-1.0069	0.8018
0.55	162.0	-0.9177	0.76
0.55	210.0	-0.2363	0.6526
0.55	222.0	-0.5636	0.6792
0.55	234.0	0.0934	0.6831
0.55	246.0	0.6171	0.8202
0.65	126.0	-0.3405	0.7948
0.65	138.0	0.2918	0.7236
0.65	150.0	0.4096	0.6723
0.65	162.0	-0.2667	0.7424
0.65	210.0	-1.462	0.6651
0.65	222.0	-0.1307	0.6591
0.65	234.0	-0.2679	0.6422
0.65	246.0	-0.8496	0.697
0.75	138.0	-0.9446	0.8075
0.75	210.0	-0.2107	0.6611
0.75	222.0	0.9303	0.6295
0.75	234.0	0.0983	0.6367
0.85	138.0	-0.4765	0.7135
0.85	222.0	-0.5654	0.6813
0.85	234.0	0.2757	0.6805

CLAS Physics Database