Measurement E151M25

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_UL
ε_L:	0.1257
Q²:	0.0171 GeV²
W:	1235.0 GeV
E_beam:	1.0539 GeV
ε:	0.9121

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.25	42.0	-0.9572	0.3762
0.25	54.0	0.0599	0.5144
0.35	30.0	0.142	0.5349
0.35	42.0	-0.0086	0.3611
0.35	54.0	0.0784	0.4199
0.35	66.0	0.0724	0.6066
0.45	42.0	0.2631	0.4062
0.45	54.0	-0.3513	0.3535
0.45	258.0	-0.4538	0.4098
0.45	270.0	0.135	0.4166
0.45	282.0	-0.0463	0.4641
0.55	54.0	-1.0709	0.4178
0.55	234.0	-0.4166	0.505
0.55	246.0	0.207	0.3517
0.55	258.0	0.4594	0.2925
0.55	270.0	-0.1876	0.3004
0.55	282.0	0.0257	0.3552
0.65	150.0	1.3056	0.5588
0.65	162.0	0.0591	0.497
0.65	174.0	-0.1488	0.5714
0.65	198.0	-0.4816	0.4825
0.65	222.0	0.5307	0.5291
0.65	234.0	0.0751	0.3568
0.65	246.0	0.2264	0.2984
0.65	258.0	-0.0969	0.2111
0.65	270.0	-0.1809	0.2204
0.65	282.0	0.3798	0.366
0.75	138.0	-0.0314	0.4999
0.75	150.0	0.1392	0.4088
0.75	162.0	0.1667	0.3837
0.75	174.0	0.4297	0.3431
0.75	186.0	-0.3598	0.3237
0.75	198.0	-0.0586	0.403
0.75	210.0	-0.5658	0.4463
0.75	222.0	0.0233	0.4205
0.75	234.0	-0.0157	0.3099
0.75	246.0	-0.0756	0.2551
0.75	258.0	0.1287	0.2661
0.75	270.0	0.017	0.2794
0.75	282.0	0.4369	0.5036
0.85	138.0	0.8049	0.5655
0.85	150.0	-0.0476	0.4454
0.85	162.0	0.0132	0.4166
0.85	174.0	-0.3511	0.2932
0.85	186.0	-0.0909	0.3814
0.85	198.0	0.112	0.3658
0.85	210.0	0.2155	0.5119
0.85	222.0	-0.5403	0.4479
0.85	234.0	0.2001	0.3694
0.85	246.0	0.3461	0.3471
0.85	258.0	-0.3745	0.3461
0.85	270.0	0.4563	0.5371

CLAS Physics Database