CLAS Physics Database

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Measurement E151M2373

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Experiment: EG4, 2016

Spokespersons: Xiaochao Zheng

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).

No publications available for this experiment

Quantity measured: A_LL,

Beam: e, polarization: longitudinal
Target: p (Z=1, A=1), polarization: longitudinal
Final state: π⁺n, polarization: none

Q² :	0.1435 GeV²
W :	1745 GeV
ε :	0.8642
E_beam :	2.999 GeV
ε_L:	0.082

Select data slice:
cos(θ_π⁺) =

Observable quantity measured (Y axis): A_LL,
Plot measurement data

Parameter (X axis): φ(π⁺), degrees

Click here to get data in text file, delimited with tabs.

Measured data:

cos(θ_π⁺)	φ(π⁺), degrees	A_LL	Stat. error	Syst. error
0.45	138	-0.1351	1.0659	0.0316
0.45	270	-0.5562	1.0281	0.0503
0.45	282	-0.8007	1.0082	0.0654
0.55	102	0.2127	1.0797	0.0337
0.55	114	-0.0768	0.9772	0.0305
0.55	126	1.4996	0.9373	0.1128
0.55	198	-0.36	1.0386	0.0398
0.55	222	-2.6445	0.8248	0.1941
0.65	54	-0.7546	0.9477	0.0624
0.65	102	-0.7177	1.0262	0.0601
0.65	114	-0.3292	0.8201	0.0383
0.65	126	-0.2835	0.8623	0.0364
0.65	138	-1.3306	0.9768	0.101
0.65	186	-2.6615	0.9397	0.1953
0.65	198	-2.0237	0.7797	0.1498
0.65	210	-0.9779	0.8471	0.077
0.65	222	-1.0112	0.8767	0.0792
0.65	234	-1.3794	0.9892	0.1044
0.65	282	-0.1081	0.7674	0.031
0.65	294	-0.8747	0.773	0.0702
0.75	90	-1.8453	0.9394	0.1371
0.75	102	-1.2281	0.8923	0.094
0.75	114	-0.9069	0.9398	0.0723
0.75	126	0.0977	1.1228	0.0308
0.75	186	-1.5114	1.0449	0.1136
0.75	198	-0.3777	0.9628	0.0406
0.75	210	-0.1058	0.7636	0.031
0.75	222	-2.1005	0.6284	0.1552
0.75	234	-1.6827	0.8573	0.1257
0.75	270	-0.5813	0.9366	0.0517
0.75	282	0.0429	0.8183	0.0302
0.75	294	-0.1992	0.8134	0.0333
0.85	78	-0.125	1.0229	0.0313
0.85	90	-0.8101	0.6218	0.066
0.85	102	0.6013	0.7178	0.0529
0.85	114	-0.2192	0.8321	0.0339
0.85	126	0.2736	1.0827	0.036
0.85	174	-0.1406	0.9232	0.0317
0.85	186	-0.6912	0.7911	0.0584
0.85	198	-0.7492	0.6819	0.0621
0.85	210	-0.3579	0.604	0.0397
0.85	222	-0.7548	0.6485	0.0624
0.85	234	-0.2701	0.6421	0.0358
0.85	246	0.2222	0.8729	0.0341
0.85	258	-2.0139	0.8349	0.1491
0.85	270	1.1711	0.9269	0.0901
0.95	102	1.005	0.8021	0.0788
0.95	174	-1.5923	1.036	0.1193
0.95	198	-1.0465	0.7883	0.0816
0.95	210	0.1323	0.7155	0.0315
0.95	222	0.4443	0.7	0.044
0.95	234	-0.574	0.7149	0.0513