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Measurement E151M2851

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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 : 0.0205 GeV2
W : 1535 GeV
ε : 0.6866
Ebeam : 1.3383 GeV
εL: 0.0221 

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 18 0.0011 0.2637 0.03
0.45 30 0.1677 0.2666 0.0302
0.45 42 0.3796 0.1627 0.0316
0.45 222 0.1208 0.1926 0.0304
0.55 42 -0.2252 0.1939 0.0304
0.55 138 -0.1622 0.2656 0.0302
0.55 150 0.2376 0.1905 0.0305
0.55 162 0.4043 0.2533 0.0311
0.55 174 -0.3645 0.2524 0.0309
0.55 186 0.0475 0.2808 0.03
0.55 210 -0.1611 0.3794 0.0302
0.55 222 -0.4108 0.1663 0.0313
0.55 234 -0.0479 0.175 0.0301
0.55 246 0.0776 0.2028 0.03
0.65 138 -0.0324 0.197 0.0302
0.65 162 0.0214 0.1885 0.0309
0.65 210 0.1984 0.1817 0.0316
0.65 222 -0.069 0.1637 0.0301
0.65 234 -0.1721 0.1774 0.0309
0.75 138 -0.0582 0.407 0.03
0.75 150 0.0566 0.352 0.03
0.75 210 0.285 0.2052 0.0305
0.75 222 -0.3653 0.1716 0.0309
0.75 234 -0.0292 0.1989 0.03
0.85 126 0.0258 0.2475 0.03
0.85 138 -0.082 0.2216 0.03
0.85 210 0.023 0.2484 0.03
0.85 222 -0.2391 0.2588 0.0304
0.85 234 0.0539 0.2621 0.03
0.75 246 0.1222 0.298 0.0301
0.85 126 0.2573 0.3658 0.0304
0.85 222 0.3331 0.3715 0.0307
0.85 234 0.2179 0.3962 0.0303