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Measurement E151M2589

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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 : 0.0059 GeV2
W : 1415 GeV
ε : 0.7217
Ebeam : 1.0539 GeV
εL: 0.0119 

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
0.45 42 -0.0656 0.2131 0.03
0.45 54 0.0286 0.1955 0.03
0.55 30 -0.1453 0.247 0.0301
0.55 42 -0.2373 0.2085 0.0304
0.55 54 0.1041 0.2251 0.0301
0.55 222 0.0253 0.2546 0.03
0.55 234 -0.0438 0.2315 0.03
0.55 246 -0.1918 0.24 0.0302
0.65 42 0.1237 0.2228 0.0301
0.65 54 -0.1892 0.1965 0.0302
0.65 234 -0.056 0.2342 0.03
0.65 246 0.2456 0.2395 0.0304
0.75 234 0.034 0.2111 0.03
0.75 246 0.1103 0.2424 0.0301
0.85 234 0.0667 0.2066 0.03