Measurement E151M1398

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:	0.0676
Q²:	0.0496 GeV²
W:	1445.0 GeV
E_beam:	1.0539 GeV
ε:	0.6115

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.25	42.0	-0.0121	0.8546	0.03
0.25	54.0	0.3862	0.8693	0.0529
0.35	42.0	0.4169	0.8587	0.0558
0.35	54.0	-0.5521	0.7273	0.0691
0.45	30.0	0.047	0.8756	0.0305
0.45	42.0	-0.6921	0.8419	0.0836
0.45	54.0	-0.7896	0.7395	0.094
0.45	234.0	0.2239	0.8332	0.0392
0.45	246.0	-0.3162	0.7759	0.0466
0.45	258.0	0.3966	0.7334	0.0539
0.55	42.0	-1.3078	0.8316	0.1505
0.55	150.0	0.2638	0.8045	0.0423
0.55	162.0	-2.6177	2.6177	0.2968
0.55	222.0	-0.6676	0.6725	0.0811
0.55	234.0	-0.5635	0.6359	0.0703
0.55	246.0	-0.0296	0.5135	0.0302
0.55	258.0	0.0601	0.5575	0.0308
0.55	270.0	0.0647	0.8991	0.0309
0.65	150.0	-0.0553	0.7476	0.0306
0.65	162.0	0.3492	0.8385	0.0495
0.65	174.0	-0.1651	0.7807	0.0353
0.65	186.0	1.7996	0.8327	0.2052
0.65	210.0	-0.1465	0.849	0.0342
0.65	222.0	0.4262	0.6679	0.0567
0.65	234.0	-0.2185	0.5213	0.0388
0.65	246.0	0.5326	0.5308	0.0671
0.65	258.0	0.1841	0.5735	0.0365
0.75	138.0	-0.1648	0.7115	0.0353
0.75	150.0	-1.2154	0.7805	0.1403
0.75	162.0	0.7108	0.7106	0.0856
0.75	174.0	0.8651	0.8008	0.1021
0.75	186.0	0.2517	0.8827	0.0413
0.75	234.0	-0.0431	0.5271	0.0304
0.75	246.0	0.2225	0.5028	0.0391
0.75	258.0	-0.2167	0.5175	0.0387
0.75	270.0	0.3741	0.7924	0.0518
0.85	222.0	0.4664	0.6395	0.0606
0.85	234.0	-0.0072	0.5702	0.03
0.85	246.0	0.2178	0.5709	0.0388
0.85	258.0	-0.7436	0.5088	0.0891
0.85	270.0	-0.4908	0.622	0.063
0.95	246.0	0.0804	0.6959	0.0313
0.95	258.0	0.4911	0.6689	0.063

CLAS Physics Database