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Measurement E151M512

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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: AUL,
Target spin 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): AUL,
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 		AUL Data errors Systematic errors
0.15 66 1.3024 0.6807 0.0851
0.45 66 0.0932 0.6616 0.0305
0.55 282 -0.2804 0.5112 0.0346
0.65 102 0.6712 0.6587 0.0508
0.65 258 -0.2482 0.4948 0.0336
0.65 270 -0.5425 0.4438 0.0447
0.65 282 0.5325 0.503 0.0443
0.75 78 -0.0282 0.5355 0.03
0.75 90 0.9808 0.592 0.0671
0.75 102 0.1754 0.5644 0.0319
0.75 114 0.6542 0.5955 0.05
0.75 246 -0.2466 0.5889 0.0336
0.75 258 0.02 0.5078 0.03
0.75 270 -0.1463 0.4315 0.0313
0.75 282 0.2255 0.5271 0.033
0.75 294 0.8814 0.4775 0.0617
0.85 78 0.4951 0.5999 0.0426
0.85 90 1.5218 0.4934 0.0978
0.85 102 -0.19 0.4473 0.0322
0.85 114 -0.4309 0.4356 0.0399
0.85 126 0.8313 0.6741 0.059
0.85 234 0.5969 0.6176 0.0473
0.85 246 0.8583 0.5656 0.0605
0.85 258 -0.7257 0.4562 0.0536
0.85 270 0.1858 0.5126 0.0321
0.85 282 -0.457 0.3853 0.041
0.85 294 0.2688 0.5074 0.0342
0.95 78 0.8685 0.5835 0.061
0.95 90 -0.2889 0.4951 0.0348
0.95 102 0.3369 0.4882 0.0364
0.95 114 0.0717 0.5146 0.0303
0.95 126 -0.0918 0.5272 0.0305
0.95 138 0.0121 0.5364 0.03
0.95 150 0.651 0.5261 0.0499
0.95 258 -0.3044 0.4867 0.0353
0.95 270 -0.6846 0.4077 0.0515
0.95 282 -0.3274 0.5081 0.0361