Measurement E151M1618

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:	0.0807
Q²:	0.0707 GeV²
W:	1505.0 GeV
E_beam:	1.3383 GeV
ε:	0.6863

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.55	126.0	0.3077	0.7398
0.55	138.0	0.9256	0.5595
0.55	150.0	-1.8429	0.7357
0.55	162.0	-1.509	0.8353
0.55	222.0	0.3758	0.6282
0.55	234.0	-0.9864	0.5012
0.55	246.0	0.1617	0.6127
0.65	126.0	-0.4256	0.7083
0.65	138.0	0.0473	0.6856
0.65	150.0	-0.2222	0.7918
0.65	210.0	-0.1341	0.78
0.65	222.0	0.2995	0.7188
0.65	234.0	-0.2121	0.6152
0.65	246.0	-1.3102	0.5262
0.65	258.0	0.961	0.8137
0.75	126.0	-0.8226	0.6498
0.75	138.0	-0.4076	0.6
0.75	150.0	-0.7202	0.7199
0.75	210.0	-1.5303	0.6924
0.75	222.0	-0.6578	0.6893
0.75	234.0	-0.0012	0.5372
0.75	246.0	-0.7236	0.589
0.75	258.0	0.943	0.6487
0.85	150.0	-0.2688	0.7795
0.85	222.0	0.1384	0.6844
0.85	234.0	0.2822	0.7548
0.85	246.0	-0.2401	0.5361
0.85	258.0	-1.0259	0.6809
0.95	126.0	0.2277	0.6138
0.95	138.0	0.5931	0.6891
0.95	246.0	-0.8089	0.6427
0.55	258.0	1.5944	0.8062
0.65	138.0	-0.4375	1.1097
0.65	150.0	0.6825	0.7878
0.65	210.0	-1.2208	0.7875
0.65	222.0	0.0686	0.752
0.65	234.0	-0.2004	0.8699
0.65	246.0	0.0234	0.9194
0.75	138.0	-2.0243	0.6046
0.75	150.0	-1.3173	1.0028
0.75	222.0	-0.0715	0.8485
0.75	234.0	-0.7765	0.8525
0.75	246.0	0.0716	0.6722
0.75	258.0	0.6051	0.7822
0.85	126.0	-0.1879	0.9757
0.85	222.0	0.0876	0.9252
0.85	234.0	-0.0971	0.6611
0.85	246.0	0.023	0.7408
0.85	258.0	0.3119	0.8093
0.95	246.0	-0.1821	0.8973

CLAS Physics Database