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Measurement E151M2531

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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 : 0.0121 GeV2
W : 1325 GeV
ε : 0.838
Ebeam : 1.0539 GeV
εL: 0.0452 

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
0.25 42 -0.2753 0.2085 0.0305
0.35 42 0.2043 0.1897 0.0303
0.35 54 -0.0768 0.2148 0.03
0.45 30 -0.1993 0.2416 0.0303
0.45 42 -0.1728 0.1716 0.0302
0.45 54 0.2675 0.1891 0.0305
0.45 66 0.04 0.2282 0.03
0.55 18 -0.2012 0.2151 0.0303
0.55 30 0.0043 0.1775 0.03
0.55 42 -0.0309 0.1563 0.03
0.55 54 -0.2084 0.1658 0.0303
0.55 138 0.3877 0.2903 0.031
0.55 222 0.0751 0.2277 0.03
0.55 234 0.1549 0.1621 0.0302
0.55 246 -0.3934 0.1502 0.031
0.55 258 -0.4324 0.1776 0.0312
0.65 42 0.032 0.2021 0.03
0.65 54 -0.026 0.1976 0.03
0.65 138 0.0397 0.2246 0.03
0.65 150 0.1596 0.1799 0.0302
0.65 162 0.2898 0.2113 0.0306
0.65 174 0.0908 0.214 0.0301
0.65 210 0.0846 0.2643 0.03
0.65 222 -0.1938 0.1789 0.0302
0.65 234 0.2751 0.1491 0.0305
0.65 246 -0.209 0.1413 0.0303
0.65 258 -0.0527 0.1693 0.03
0.65 270 0.2048 0.2265 0.0303
0.75 138 -0.108 0.2061 0.0301
0.75 150 0.1023 0.1808 0.0301
0.75 162 0.1253 0.2251 0.0301
0.75 174 -0.0533 0.2232 0.03
0.75 186 -0.0286 0.2565 0.03
0.75 222 -0.1071 0.1586 0.0301
0.75 234 -0.0344 0.1315 0.03
0.75 246 0.0185 0.1283 0.03
0.75 258 0.2523 0.168 0.0304
0.75 270 -0.4769 0.2082 0.0315
0.85 138 -0.238 0.2553 0.0304
0.85 222 -0.0633 0.1506 0.03
0.85 234 0.0291 0.1449 0.03
0.85 246 0.0005 0.1397 0.03
0.85 258 0.4269 0.1611 0.0312