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Measurement E151M3178

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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 : 0.1205 GeV2
W : 1235 GeV
ε : 0.9666
Ebeam : 2.2596 GeV
εL: 0.7003 

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
0.55 282 0.0766 0.2318 0.03
0.65 258 -0.0337 0.2528 0.03
0.65 270 -0.3174 0.2293 0.0307
0.65 282 -0.0353 0.2279 0.03
0.75 258 0.2552 0.2043 0.0304
0.75 270 -0.0377 0.2271 0.03
0.75 282 -0.0019 0.2292 0.03
0.85 90 0.0011 0.2346 0.03
0.85 102 -0.2416 0.2368 0.0304
0.85 114 -0.0659 0.2155 0.03
0.85 126 -0.1315 0.1954 0.0301
0.85 258 0.1606 0.2091 0.0302
0.85 270 -0.1127 0.2112 0.0301
0.95 114 0.2194 0.2352 0.0303
0.95 126 -0.0397 0.2497 0.03
0.95 138 -0.0346 0.2232 0.03
0.95 150 0.0248 0.2307 0.03
0.45 66 0.0422 0.2644 0.03
0.65 270 0.1052 0.24 0.0301
0.65 282 0.1554 0.2429 0.0302
0.75 270 -0.156 0.1807 0.0302
0.75 282 -0.053 0.2426 0.03
0.85 90 -0.2158 0.2534 0.0303
0.85 102 0.3197 0.2318 0.0307
0.85 114 0.4712 0.2075 0.0314
0.85 126 -0.32 0.227 0.0307
0.85 258 -0.57 0.2077 0.0321
0.85 270 0.1577 0.2378 0.0302
0.95 102 0.1089 0.248 0.0301
0.95 114 -0.001 0.2702 0.03
0.95 126 -0.2103 0.2334 0.0303
0.95 138 0.1959 0.0314
0.95 150 -0.0919 0.2419 0.0301
0.95 174 -0.3796 0.234 0.0309