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Measurement E151M228

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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 : 0.1435 GeV2
W : 1235 GeV
ε : 0.8817
Ebeam : 1.3383 GeV
εL: 0.717 

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
0.35 282 -0.077 0.5084 0.0304
0.45 270 0.1285 0.4726 0.031
0.45 282 0.7049 0.3786 0.053
0.45 294 0.0421 0.5002 0.0301
0.55 270 -0.1769 0.4189 0.0319
0.55 282 0.479 0.3649 0.0422
0.55 294 0.5922 0.4452 0.0474
0.65 258 -0.2764 0.3978 0.0345
0.65 270 -0.0977 0.3262 0.0306
0.65 282 -0.2067 0.3764 0.0326
0.65 294 0.258 0.4436 0.034
0.75 246 -1.0995 0.381 0.0744
0.75 258 -0.607 0.4712 0.0481
0.75 270 -0.2889 0.3678 0.0349
0.75 282 0.1107 0.3383 0.0308
0.75 294 -0.2933 0.3752 0.0351
0.85 90 -0.1401 0.5177 0.0312
0.85 102 0.0165 0.4482 0.03
0.85 114 0.1246 0.3655 0.031
0.85 126 0.1752 0.4107 0.0319
0.85 138 0.5201 0.4234 0.044
0.85 246 -0.4706 0.4586 0.0418
0.85 258 0.2678 0.4539 0.0343
0.85 270 0.2509 0.3993 0.0338
0.85 282 0.1085 0.409 0.0307
0.95 90 0.1509 0.4062 0.0314
0.95 102 -0.0449 0.3764 0.0301
0.95 114 0.2403 0.3704 0.0335
0.95 126 0.0731 0.3877 0.0303
0.95 138 0.5289 0.3225 0.0444
0.95 150 -0.2303 0.4201 0.0332
0.95 162 0.0143 0.39 0.03
0.95 174 -0.2915 0.383 0.035
0.95 186 -0.5358 0.3908 0.0447
0.95 198 -0.269 0.3512 0.0343
0.95 210 -0.4335 0.4132 0.0403
0.95 222 0.5759 0.4398 0.0466
-0.05 42 0.2738 0.9656 0.0342
0.45 270 -0.3978 0.532 0.0384
0.45 282 0.7232 0.6888 0.0529
0.45 294 -0.352 0.4985 0.0367
0.55 270 1.7269 1.7269 0.1082
0.55 282 0.4688 0.7061 0.0412
0.55 294 0.5006 0.709 0.0425
0.65 258 -0.4217 0.5237 0.0393
0.65 270 0.0686 0.5062 0.0303
0.65 282 -0.6435 0.3878 0.049
0.75 246 -0.3086 0.6078 0.0353
0.75 258 -0.3452 0.482 0.0365
0.75 270 0.1329 0.6099 0.031
0.75 282 0.1908 0.6089 0.0321
0.75 294 -0.5842 0.3901 0.0462
0.85 90 -0.3102 0.655 0.0353
0.85 102 1.9298 1.9298 0.12
0.85 114 -0.6715 0.4609 0.0504
0.85 126 -1.0597 0.3094 0.0705
0.85 138 -0.1585 0.6634 0.0315
0.85 150 0.5684 0.9289 0.0455
0.85 258 -0.0194 0.5955 0.03
0.85 270 0.1945 0.5971 0.0322
0.85 282 -0.2738 0.513 0.0342
0.95 102 -0.4454 0.4519 0.0402
0.95 114 -0.3904 0.5026 0.0381
0.95 126 0.6887 0.6515 0.0512
0.95 138 -0.6601 0.3652 0.0498
0.95 150 -0.5628 0.4345 0.0453
0.95 162 0.037 0.5796 0.0301
0.95 174 0.1798 0.5743 0.0319