Measurement E151M1526

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:	0.3345
Q²:	0.1435 GeV²
W:	1355.0 GeV
E_beam:	1.3383 GeV
ε:	0.7997

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.55	258.0	-0.0624	0.6341
0.55	270.0	-1.2727	0.5967
0.65	126.0	0.4905	0.6368
0.65	234.0	0.6951	0.738
0.65	246.0	0.2261	0.5157
0.65	258.0	-0.8804	0.4235
0.65	270.0	1.0042	0.4753
0.75	102.0	1.0838	0.7393
0.75	114.0	0.0241	0.5823
0.75	126.0	-0.1446	0.5387
0.75	138.0	0.3939	0.6374
0.75	222.0	1.6109	0.6986
0.75	234.0	-0.194	0.4957
0.75	246.0	0.4978	0.5534
0.75	258.0	0.5385	0.4951
0.75	270.0	-0.0995	0.551
0.75	282.0	0.8004	0.5496
0.85	102.0	-0.1177	0.6331
0.85	114.0	0.7858	0.5345
0.85	126.0	0.1032	0.5443
0.85	138.0	0.8014	0.5238
0.85	150.0	0.5108	0.5873
0.85	162.0	-0.4003	1.0988
0.85	234.0	0.1467	0.5464
0.85	246.0	-0.5242	0.533
0.85	258.0	0.8755	0.5265
0.85	270.0	0.0729	0.4877
0.85	282.0	0.4081	0.391
0.85	294.0	0.5299	0.4741
0.95	78.0	-0.3421	0.5167
0.95	90.0	-0.1671	0.7901
0.95	102.0	0.5804	0.6962
0.95	126.0	0.161	1.0688
0.95	138.0	0.7063	0.7125
0.95	150.0	-0.4393	0.6708
0.95	174.0	-0.14	0.8115
0.95	234.0	0.1394	0.5687
0.95	246.0	-0.5323	0.7682
0.95	258.0	0.2206	0.478
0.95	270.0	0.2621	0.7915
0.95	282.0	0.5752	0.4963
0.95	294.0	-0.6536	0.4576

CLAS Physics Database