Measurement E151M2265

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:	0.454
Q²:	0.4155 GeV²
W:	1475.0 GeV
E_beam:	2.999 GeV
ε:	0.9081

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.05	54.0	-0.0522	0.8567
0.05	66.0	-0.1406	0.9116
0.15	66.0	0.4438	0.8448
0.15	294.0	0.7071	0.7368
0.15	306.0	-0.1567	0.8074
0.25	66.0	-0.6506	0.8438
0.25	282.0	0.5405	0.8471
0.35	282.0	0.9219	0.829
0.35	294.0	0.4563	0.8078
0.45	78.0	0.0684	0.9102
0.45	90.0	-0.1083	0.7941
0.45	102.0	-0.5207	0.8291
0.45	282.0	0.1689	0.8404
0.55	78.0	-1.3078	0.7615
0.55	90.0	0.0624	0.694
0.55	102.0	-1.0739	0.7878
0.55	246.0	-1.7043	0.8077
0.55	258.0	0.6505	0.8556
0.65	54.0	2.0074	0.7803
0.65	78.0	-0.465	0.7372
0.65	90.0	0.8763	0.6179
0.65	102.0	0.4049	0.66
0.65	114.0	0.6659	0.7309
0.65	126.0	-0.241	0.9015
0.65	234.0	0.8731	0.9309
0.65	246.0	0.2885	0.9281
0.65	258.0	0.5873	0.6863
0.75	54.0	1.8619	0.6518
0.75	66.0	0.8198	0.8896
0.75	78.0	-0.1103	0.7162
0.75	90.0	-0.9231	0.6582
0.75	102.0	0.2849	0.5915
0.75	114.0	0.1872	0.7046
0.75	126.0	1.3574	0.8787
0.75	222.0	-0.8412	0.9264
0.75	234.0	-0.9998	0.764
0.75	246.0	0.2845	0.5935
0.75	258.0	0.7739	0.6334
0.75	270.0	0.4079	0.6503
0.75	282.0	-0.3434	0.7449
0.85	54.0	-0.0181	0.7418
0.85	66.0	0.1006	0.7204
0.85	90.0	0.0861	0.6951
0.85	102.0	1.1191	0.6518
0.85	114.0	0.0286	0.7929
0.85	126.0	-0.954	0.8009
0.85	210.0	-0.1596	0.6793
0.85	222.0	1.2873	0.7592
0.85	234.0	0.9644	0.6887
0.85	246.0	0.1142	0.6136
0.85	258.0	-0.2524	0.589
0.85	270.0	-0.4219	0.5364
0.85	282.0	0.2282	0.5807
0.85	294.0	-0.0797	0.5898
0.85	306.0	-0.6696	0.6301
0.85	318.0	0.9194	0.7753
0.95	90.0	-0.3582	0.8351
0.95	198.0	-0.7146	0.8096
0.95	222.0	0.4654	0.786
0.95	234.0	-0.0904	0.7535
0.95	246.0	0.4432	0.7099
0.95	258.0	0.5008	0.6283
0.95	270.0	-0.1011	0.7568
0.95	282.0	-0.2324	0.6268
0.95	294.0	-1.2608	0.5465
0.95	306.0	0.1984	0.5861
0.95	318.0	0.7941	0.633
0.95	330.0	-0.2446	0.5475

CLAS Physics Database