CLAS Physics Database

JLab | Search | Overview | Login | Edit | Register

Measurement E151M489

You are not logged in.

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 : 0.0593 GeV2
W : 1265 GeV
ε : 0.9642
Ebeam : 1.9889 GeV
εL: 0.3315 

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
0.15 306 0.1964 0.5767 0.0323
0.25 66 -0.1689 0.4558 0.0317
0.25 294 0.11 0.4819 0.0307
0.25 306 0.8271 0.4611 0.0588
0.35 66 -0.2289 0.3375 0.0331
0.35 78 0.2941 0.3832 0.035
0.35 294 0.704 0.4506 0.0525
0.35 306 0.3936 0.5623 0.0385
0.45 66 -0.0713 0.3472 0.0303
0.45 78 -0.1868 0.257 0.0321
0.45 90 -0.1241 0.3474 0.0309
0.45 270 -0.0382 0.5142 0.0301
0.45 282 0.1297 0.4352 0.031
0.45 294 0.2514 0.5322 0.0337
0.55 66 0.3346 0.4927 0.0363
0.55 78 0.455 0.3467 0.0409
0.55 90 -0.0001 0.3483 0.03
0.55 258 -0.1199 0.466 0.0309
0.55 270 0.3189 0.4639 0.0358
0.55 282 0.3587 0.4019 0.0372
0.65 78 0.6477 0.3689 0.0497
0.65 90 -0.0864 0.3589 0.0305
0.65 102 -0.0065 0.5078 0.03
0.65 114 0.0303 0.5557 0.0301
0.65 246 -0.2858 0.3571 0.0347
0.65 258 0.1084 0.2939 0.0307
0.65 270 -0.4462 0.2547 0.0406
0.65 282 0.3814 0.4109 0.038
0.75 90 -0.2335 0.3919 0.0332
0.75 102 -0.5554 0.3174 0.0453
0.75 114 0.2708 0.3826 0.0343
0.75 126 0.4032 0.3997 0.0388
0.75 138 -0.3351 0.4343 0.0363
0.75 150 -0.0695 0.5428 0.0303
0.75 234 0.8766 0.3995 0.0614
0.75 246 0.2341 0.2891 0.0332
0.75 258 -0.1038 0.2546 0.0307
0.75 270 -0.07 0.278 0.0303
0.75 282 0.0753 0.4617 0.0304
0.85 102 -0.5923 0.3769 0.047
0.85 114 -0.277 0.2658 0.0345
0.85 126 -0.0047 0.2685 0.03
0.85 138 0.0537 0.2776 0.0302
0.85 150 1.1624 0.331 0.0772
0.85 162 0.1473 0.4225 0.0313
0.85 174 0.7391 0.4295 0.0543
0.85 186 -0.3105 0.523 0.0355
0.85 198 -0.1253 0.5292 0.031
0.85 210 0.0654 0.4387 0.0303
0.85 222 0.2017 0.3651 0.0324
0.85 234 -0.1911 0.3117 0.0322
0.85 246 0.1095 0.2869 0.0307
0.85 258 -0.0256 0.2851 0.03
0.85 270 -0.0174 0.3517 0.03
0.95 114 -0.3363 0.4405 0.0364
0.95 126 -0.4524 0.3956 0.0408
0.95 138 0.2192 0.3784 0.0329
0.95 150 0.9449 0.3952 0.0651
0.95 162 -0.1992 0.3373 0.0324
0.95 174 -0.0168 0.3492 0.03
0.95 186 0.3372 0.4482 0.0364
0.95 198 -0.7231 0.3573 0.0534
0.95 210 -0.3862 0.4551 0.0382
0.95 222 0.0465 0.4627 0.0301
0.95 234 -0.3307 0.4252 0.0362
0.95 246 -0.1406 0.4157 0.0312