Measurement E151M1334

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:	0.0707
Q²:	0.0245 GeV²
W:	1355.0 GeV
E_beam:	1.0539 GeV
ε:	0.7886

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.25	42.0	-1.6179	0.703
0.25	54.0	1.1998	0.8957
0.35	30.0	0.8991	0.9319
0.35	42.0	1.087	0.618
0.35	54.0	0.343	0.6402
0.45	18.0	-0.9197	0.9505
0.45	30.0	-0.1334	0.5731
0.45	42.0	-1.2104	0.5688
0.45	54.0	-0.0965	0.743
0.45	246.0	-0.7983	0.8962
0.45	258.0	-0.2108	0.7583
0.55	30.0	-0.1096	0.6885
0.55	42.0	-0.4186	0.6626
0.55	54.0	0.2382	0.7236
0.55	222.0	-0.4436	0.7359
0.55	234.0	0.0979	0.5982
0.55	246.0	-0.6682	0.5666
0.55	258.0	0.2425	0.5538
0.65	138.0	0.9974	0.9507
0.65	150.0	-0.6307	0.7283
0.65	162.0	-1.4147	0.6684
0.65	174.0	-0.104	0.7049
0.65	186.0	-1.2253	0.8461
0.65	210.0	0.9687	0.7381
0.65	222.0	-0.5942	0.6431
0.65	234.0	0.0902	0.4875
0.65	246.0	-0.658	0.4646
0.65	258.0	-0.3814	0.4798
0.65	270.0	1.7024	0.7849
0.75	126.0	0.1283	0.9077
0.75	138.0	-0.4622	0.7592
0.75	150.0	-1.3519	0.6764
0.75	162.0	-0.9834	0.6526
0.75	174.0	0.0368	0.8014
0.75	222.0	0.4401	0.6842
0.75	234.0	-0.4355	0.4946
0.75	246.0	0.1729	0.5102
0.75	258.0	-0.1244	0.4818
0.75	270.0	-0.0814	0.7266
0.85	138.0	2.1615	0.8276
0.85	162.0	-0.5923	0.8217
0.85	222.0	0.8742	0.5985
0.85	234.0	-0.0522	0.4543
0.85	246.0	0.1129	0.4365
0.85	258.0	0.5989	0.4607
0.85	270.0	-0.8765	0.5729
0.95	234.0	-0.0156	0.6485
0.95	246.0	0.1023	0.5455

CLAS Physics Database