CLAS Physics Database

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Measurement E151M2842

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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 :	0.101 GeV²
W :	1505 GeV
ε :	0.66
E_beam :	1.3383 GeV
ε_L:	0.1063

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
0.55	222	-0.0633	0.2114	0.0316
0.55	234	0.0148	0.1964	0.03
0.55	246	-0.0816	0.2002	0.0305
0.65	138	0.6922	0.2446	0.033
0.65	150	-0.1643	0.3985	0.0302
0.65	222	-0.785	0.1555	0.0339
0.65	234	0.5757	0.2846	0.0321
0.65	246	-0.1637	0.2831	0.0302
0.65	258	0.4592	0.2717	0.0314
0.75	138	0.1996	0.3413	0.0303
0.75	162	-0.0782	0.3925	0.03
0.75	222	0.2724	0.2841	0.0305
0.75	234	-0.1767	0.2876	0.0302
0.75	246	0.0224	0.3008	0.03
0.75	258	-0.0859	0.3244	0.03
0.85	222	-0.4028	0.2783	0.0311
0.85	234	-0.5641	0.2604	0.0321
0.85	246	0.4684	0.2375	0.0314
0.85	258	0.2067	0.2642	0.0303
0.95	102	0.6178	0.271	0.0324
0.95	114	0.4216	0.3922	0.0312
0.95	222	-0.0677	0.2973	0.03
0.95	234	-0.1675	0.3374	0.0302
0.95	246	-0.0228	0.3916	0.03
0.95	258	0.2311	0.3394	0.0304
0.55	258	0.1024	0.2613	0.0301
0.65	126	0.2614	0.2296	0.0305
0.65	138	-0.5557	0.2061	0.032
0.65	150	0.2257	0.2409	0.0303
0.65	222	-0.0593	0.2302	0.03
0.65	234	-0.1997	0.2035	0.0303
0.65	246	-0.2229	0.2255	0.0303
0.65	258	0.3349	0.2177	0.0307
0.75	126	-0.1678	0.2447	0.0302
0.75	138	-0.3892	0.2296	0.031
0.75	162	-0.0447	0.2853	0.03
0.75	222	-0.4209	0.2207	0.0312
0.75	234	0.2206	0.2277	0.0303
0.75	246	-0.1495	0.1845	0.0301
0.75	258	0.0905	0.2138	0.0301
0.85	222	-0.2259	0.2592	0.0303
0.85	234	-0.2911	0.2422	0.0306
0.85	246	-0.0148	0.2449	0.03
0.85	258	-0.0182	0.2194	0.03
0.85	270	0.1268	0.2484	0.0301
0.95	114	-0.2821	0.2466	0.0305
0.95	234	0.1603	0.2643	0.0302