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Measurement E151M2812

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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 : 0.0143 GeV2
W : 1475 GeV
ε : 0.773
Ebeam : 1.3383 GeV
εL: 0.0228 

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 0.24 0.3207 0.0304
0.45 222 0.3498 0.3086 0.0308
0.45 234 -0.6119 0.1217 0.0336
0.55 18 -0.3381 0.3266 0.0308
0.55 30 -0.0591 0.1991 0.0301
0.55 42 0.3672 0.1468 0.0318
0.55 54 -0.1297 0.4408 0.0301
0.55 126 -0.1323 0.1997 0.0303
0.55 138 0.0763 0.166 0.0302
0.55 150 -0.0586 0.4028 0.03
0.55 210 0.2772 0.1837 0.031
0.55 222 -0.0139 0.1775 0.0304
0.55 234 0.1795 0.161 0.0302
0.55 246 -0.5756 0.1349 0.0333
0.65 126 0.2623 0.1979 0.0305
0.65 138 0.0636 0.1855 0.03
0.65 150 -0.0739 0.175 0.0303
0.65 162 0.5447 0.2544 0.0319
0.65 210 -0.3752 0.1352 0.0319
0.65 222 -0.2447 0.1788 0.0313
0.65 234 0.2883 0.1571 0.0307
0.65 246 0.0389 0.1988 0.03
0.75 126 -0.2224 0.3893 0.0303
0.75 138 0.0967 0.2248 0.0301
0.75 150 0.4864 0.2177 0.0315
0.75 210 -0.0395 0.1982 0.0303
0.75 222 0.1132 0.1456 0.0301
0.75 234 0.0153 0.1494 0.0304
0.75 246 -0.5444 0.1475 0.0319
0.85 126 -0.0457 0.22 0.0301
0.85 150 0.0087 0.2664 0.03
0.85 210 0.1281 0.1854 0.0302
0.85 222 -0.3964 0.1692 0.0314
0.85 234 -0.1906 0.1605 0.0304
0.85 246 0.2537 0.1882 0.0316