Measurement E151M1377

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:	0.0628
Q²:	0.0348 GeV²
W:	1415.0 GeV
E_beam:	1.0539 GeV
ε:	0.6858

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.25	42.0	0.1368	0.6678
0.25	54.0	-1.3004	0.8374
0.35	30.0	-0.6707	0.9066
0.35	42.0	0.0282	0.7109
0.35	54.0	-0.4381	0.6487
0.45	30.0	0.6159	0.9273
0.45	42.0	-0.1863	0.6202
0.45	54.0	-0.5952	0.7872
0.45	234.0	-0.2731	0.8099
0.45	246.0	-0.5948	0.8218
0.45	258.0	0.1091	0.8713
0.55	42.0	0.324	0.7603
0.55	54.0	-1.0854	0.8689
0.55	150.0	-0.1569	0.8987
0.55	222.0	0.3841	0.8233
0.55	234.0	-0.5954	0.6947
0.55	246.0	0.2361	0.6351
0.55	258.0	0.1312	0.7059
0.65	138.0	0.0462	0.9912
0.65	150.0	-1.3949	0.6873
0.65	162.0	-0.443	0.8913
0.65	222.0	-0.6097	0.6862
0.65	234.0	-0.1325	0.4864
0.65	246.0	0.4419	0.5079
0.65	258.0	-0.0959	0.608
0.65	270.0	-0.149	0.9114
0.75	138.0	0.1692	0.7793
0.75	150.0	-0.0364	0.7862
0.75	162.0	-0.9804	0.8535
0.75	174.0	-0.348	0.845
0.75	210.0	0.9459	0.8736
0.75	222.0	-1.0429	0.686
0.75	234.0	-0.558	0.6367
0.75	246.0	-0.076	0.5087
0.75	258.0	-0.463	0.5012
0.75	270.0	-0.3945	0.7076
0.85	138.0	0.9983	0.9076
0.85	150.0	0.2535	0.8968
0.85	222.0	-0.0821	0.77
0.85	234.0	0.0678	0.4917
0.85	246.0	-0.075	0.4875
0.85	258.0	-0.7941	0.5048
0.85	270.0	0.3127	0.6497
0.95	138.0	0.6319	0.7276
0.95	234.0	-0.2022	0.664
0.95	246.0	-0.7408	0.5938
0.95	258.0	0.5321	0.6429

CLAS Physics Database