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Measurement E151M2608

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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 : 1445 GeV
ε : 0.6685
Ebeam : 1.0539 GeV
εL: 0.0095 

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 0.3205 0.2165 0.0307
0.45 54 -0.189 0.1831 0.0302
0.45 222 0.0002 0.2615 0.03
0.55 42 -0.2732 0.2475 0.0305
0.55 54 -0.0168 0.2181 0.03
0.55 222 0.11 0.2135 0.0301
0.55 234 -0.2157 0.2222 0.0303
0.55 246 -0.2266 0.2457 0.0303
0.65 222 0.1083 0.2104 0.0301
0.65 234 -0.0963 0.2537 0.0301
0.65 246 0.0906 0.2109 0.0301
0.75 222 0.0375 0.2381 0.03
0.75 234 -0.3476 0.1806 0.0308
0.75 246 -0.2831 0.2032 0.0305
0.85 222 -0.4824 0.236 0.0315
0.85 234 -0.2853 0.2128 0.0305