CLAS Physics Database

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Measurement E151M2805

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

Q² :	0.1205 GeV²
W :	1445 GeV
ε :	0.7237
E_beam :	1.3383 GeV
ε_L:	0.1741

Select data slice:
cos(θ_π⁺) =

Observable quantity measured (Y axis): A_LU,
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_LU	Stat. error	Syst. error
0.65	126	-0.0051	0.2586	0.03
0.65	138	0.3792	0.2487	0.0309
0.65	150	-0.1693	0.2803	0.0302
0.65	234	-0.1423	0.2457	0.0301
0.65	246	0.1858	0.2034	0.0302
0.65	258	0.491	0.2227	0.0316
0.75	114	-0.4436	0.2094	0.0313
0.75	126	0.0868	0.2001	0.0301
0.75	138	0.1716	0.2121	0.0302
0.75	150	0.0815	0.2573	0.03
0.75	162	0.0214	0.2573	0.03
0.75	210	0.255	0.2746	0.0304
0.75	222	-0.1943	0.2667	0.0303
0.75	234	-0.0298	0.2379	0.03
0.75	246	0.3462	0.2135	0.0308
0.75	258	-0.1983	0.2601	0.0303
0.75	270	-0.4611	0.237	0.0314
0.85	138	0.3664	0.2212	0.0309
0.85	234	0.072	0.2528	0.03
0.85	246	0.1235	0.2265	0.0301
0.85	258	-0.0672	0.2154	0.03
0.85	270	-0.085	0.2201	0.03
0.95	90	-0.359	0.2556	0.0308
0.95	102	0.1747	0.2447	0.0302
0.95	114	0.2986	0.2545	0.0306
0.95	234	0.1198	0.2583	0.0301
0.95	246	0.4601	0.2494	0.0314
0.95	258	-0.3036	0.2499	0.0306
0.95	282	0.3751	0.2505	0.0309
0.55	234	-0.4784	0.2847	0.0315
0.65	114	-0.0769	0.3683	0.03
0.65	126	0.2812	0.3605	0.0305
0.65	150	0.0114	0.3632	0.03
0.65	222	0.0744	0.3554	0.03
0.65	234	-0.3607	0.2583	0.0309
0.65	246	0.5777	0.2397	0.0321
0.65	258	-0.0877	0.299	0.0301
0.75	126	-0.2302	0.3277	0.0304
0.75	138	0.5812	0.2533	0.0322
0.75	210	-0.3233	0.3392	0.0307
0.75	222	-0.1806	0.405	0.0302
0.75	234	-0.2801	0.309	0.0305
0.75	246	0.2529	0.2647	0.0304
0.75	258	0.2259	0.2856	0.0303
0.75	270	0.2519	0.3346	0.0304
0.85	126	0.0505	0.4	0.03
0.85	150	-0.5551	0.3237	0.032
0.85	234	-0.5558	0.2481	0.032
0.85	246	0.2205	0.311	0.0303
0.85	258	-0.0492	0.2979	0.03
0.85	270	0.0949	0.3022	0.0301
0.85	282	0.0292	0.3845	0.03
0.95	90	-0.4362	0.3139	0.0312
0.95	234	-0.5152	0.2826	0.0317
0.95	246	0.3396	0.3751	0.0308
0.95	258	-0.2588	0.3174	0.0304
0.95	270	0.0729	0.3017	0.03
0.95	282	-0.4726	0.3319	0.0315