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Measurement E151M2694

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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 : 1265 GeV
ε : 0.8039
Ebeam : 1.3383 GeV
εL: 0.7443 

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
0.55 270 0.1709 0.2197 0.0303
0.65 258 0.4726 0.2495 0.0315
0.65 282 -0.2773 0.2513 0.0305
0.75 114 -0.0361 0.2426 0.03
0.75 258 0.0914 0.2636 0.0301
0.75 270 -0.1432 0.2544 0.0301
0.75 294 -0.4133 0.2548 0.0311
0.85 90 -0.0112 0.2651 0.03
0.85 114 0.3669 0.2345 0.0309
0.85 126 0.264 0.2351 0.0305
0.85 138 -0.3034 0.2566 0.0306
0.85 282 0.4153 0.2513 0.0311
0.95 114 0.3454 0.2403 0.0308
0.95 138 0.1093 0.2542 0.0301
0.95 150 -0.2098 0.2519 0.0303
0.55 282 0.3214 0.3391 0.0307
0.65 258 0.1641 0.3555 0.0302
0.65 270 -0.2663 0.3801 0.0305
0.65 282 0.0945 0.3753 0.0301
0.65 294 -0.4218 0.3538 0.0312
0.75 246 -0.6294 0.2095 0.0325
0.75 258 0.0292 0.4172 0.03
0.75 282 -0.1852 0.3399 0.0302
0.85 90 -0.7636 0.2121 0.0337
0.85 102 0.0903 0.3658 0.0301
0.85 126 0.3571 0.3294 0.0308
0.85 138 -0.278 0.3653 0.0305
0.85 270 -0.6449 0.25 0.0327
0.85 282 -0.6436 0.2365 0.0326
0.85 294 -0.8756 0.1764 0.0347