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Measurement E151M2956

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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 : 0.2445 GeV2
W : 1295 GeV
ε : 0.91
Ebeam : 1.9889 GeV
εL: 0.7229 

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
0.15 66 0.5101 0.2273 0.0317
0.45 66 0.1889 0.274 0.0302
0.55 282 -0.0995 0.2471 0.0301
0.65 102 0.4248 0.2474 0.0312
0.65 258 -0.2296 0.2383 0.0303
0.65 270 -0.054 0.229 0.03
0.65 282 0.294 0.2051 0.0306
0.75 78 0.487 0.2159 0.0315
0.75 90 0.1462 0.2346 0.0301
0.75 102 -0.0385 0.2411 0.03
0.75 114 -0.0379 0.2412 0.03
0.75 246 -0.0338 0.2863 0.03
0.75 258 0.0792 0.2336 0.03
0.75 270 -0.2013 0.2028 0.0303
0.75 282 0.5359 0.2121 0.0319
0.75 294 -0.0497 0.205 0.03
0.85 78 -0.3722 0.2496 0.0309
0.85 90 -0.4156 0.1955 0.0311
0.85 102 0.0243 0.2073 0.03
0.85 114 0.7341 0.1611 0.0334
0.85 126 -0.0798 0.2697 0.03
0.85 234 0.1354 0.2627 0.0301
0.85 246 -0.3801 0.2355 0.0309
0.85 258 -0.1262 0.2563 0.0301
0.85 270 -0.1409 0.2338 0.0301
0.85 282 0.1274 0.2 0.0301
0.85 294 0.0431 0.2318 0.03
0.95 78 -0.1417 0.2683 0.0301
0.95 90 0.0507 0.2589 0.03
0.95 102 0.1707 0.2253 0.0302
0.95 114 -0.0144 0.2505 0.03
0.95 126 0.0795 0.2682 0.03
0.95 138 -0.0936 0.2609 0.0301
0.95 150 0.0922 0.2415 0.0301
0.95 258 0.2497 0.2616 0.0304
0.95 270 0.359 0.239 0.0308
0.95 282 0.1475 0.2846 0.0301