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Measurement E151M2610

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

Q2 : 0.0084 GeV2
W : 1445 GeV
ε : 0.6652
Ebeam : 1.0539 GeV
εL: 0.0134 

Select data slice:
cos(θπ+) =
Observable quantity measured (Y axis): ALU,
Plot measurement data

Parameter (X axis): φ(π+), degrees

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

Measured data:

cos(θπ+) φ(π+),
degrees 		ALU Stat. error Syst. error
0.35 30 0.0056 0.2431 0.03
0.35 42 0.2238 0.2046 0.0303
0.35 54 -0.1916 0.1935 0.0302
0.45 30 -0.0292 0.2528 0.03
0.45 42 -0.0183 0.1993 0.03
0.45 54 0.0974 0.1685 0.0301
0.45 66 0.0739 0.22 0.03
0.45 222 -0.2312 0.2549 0.0304
0.55 30 -0.0911 0.2171 0.0301
0.55 42 -0.1543 0.1693 0.0302
0.55 54 0.2916 0.189 0.0306
0.55 66 -0.2376 0.2385 0.0304
0.55 162 0.2194 0.2385 0.0303
0.55 210 -0.0851 0.2507 0.03
0.55 222 -0.0479 0.1932 0.03
0.55 234 0.0798 0.1802 0.03
0.55 246 -0.2942 0.2078 0.0306
0.55 258 0.1229 0.2476 0.0301
0.65 138 -0.2747 0.2186 0.0305
0.65 150 0.1462 0.2129 0.0301
0.65 174 0.3824 0.2419 0.031
0.65 210 -0.2004 0.2209 0.0303
0.65 222 0.1581 0.2052 0.0302
0.65 234 -0.3115 0.1631 0.0306
0.65 246 -0.0315 0.2001 0.03
0.75 210 -0.3828 0.2288 0.031
0.75 222 -0.1759 0.2138 0.0302
0.75 234 0.0817 0.1967 0.03
0.75 246 -0.0823 0.1849 0.03
0.85 210 0.4554 0.204 0.0314
0.85 222 -0.3203 0.2064 0.0307
0.85 234 -0.3934 0.1709 0.031
0.85 246 -0.3232 0.2058 0.0307