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Measurement E151M45

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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 : 0.0143 GeV2
W : 1265 GeV
ε : 0.8925
Ebeam : 1.0539 GeV
εL: 0.0837 

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
0.25 42 -0.21 0.6011 0.0384
0.25 54 1.2146 0.7003 0.1414
0.35 42 1.4233 0.5364 0.1647
0.35 54 -0.139 0.4931 0.0339
0.35 66 0.3786 0.6905 0.0525
0.45 30 0.9507 0.5799 0.1122
0.45 42 0.6588 0.4651 0.0807
0.45 54 0.4549 0.5221 0.0598
0.45 258 -0.852 0.4928 0.1015
0.45 270 0.0507 0.5103 0.0305
0.55 30 0.8708 0.6692 0.1035
0.55 42 -0.2753 0.4395 0.0434
0.55 54 0.5254 0.5713 0.0669
0.55 234 0.4173 0.4799 0.0562
0.55 246 0.3246 0.3965 0.0476
0.55 258 -0.0326 0.325 0.0302
0.55 270 -0.1714 0.361 0.0358
0.55 282 -0.1518 0.5217 0.0346
0.65 138 1.0661 0.6621 0.1249
0.65 150 0.5366 0.6218 0.068
0.65 162 0.6703 0.5288 0.082
0.65 174 0.1557 0.4735 0.0348
0.65 186 -0.1683 0.5538 0.0356
0.65 198 -0.2459 0.5947 0.041
0.65 222 1.131 0.5808 0.1321
0.65 234 0.0474 0.3516 0.0305
0.65 246 -0.1858 0.2752 0.0367
0.65 258 -0.0985 0.2528 0.032
0.65 270 -0.8194 0.2873 0.0979
0.65 282 1.0076 0.5376 0.1185
0.75 138 0.0999 0.4803 0.0321
0.75 150 0.8911 0.4681 0.1057
0.75 162 -0.1627 0.4081 0.0353
0.75 174 0.2991 0.4179 0.0454
0.75 186 -0.4318 0.4803 0.0576
0.75 198 0.2302 0.5159 0.0398
0.75 210 -0.4084 0.4435 0.0553
0.75 222 -0.1668 0.4234 0.0355
0.75 234 0.7099 0.356 0.0862
0.75 246 0.0244 0.271 0.0301
0.75 258 -0.1599 0.2442 0.0351
0.75 270 -0.007 0.3349 0.03
0.75 282 1.2095 0.5318 0.1408
0.85 138 0.19 0.6115 0.037
0.85 150 -0.1578 0.5505 0.035
0.85 162 0.3871 0.5334 0.0533
0.85 174 -0.0063 0.484 0.03
0.85 186 0.9464 0.5515 0.1118
0.85 198 0.5397 0.6014 0.0683
0.85 222 0.5756 0.4542 0.072
0.85 234 0.1306 0.3522 0.0335
0.85 246 0.2218 0.288 0.0392
0.85 258 -0.1561 0.361 0.0349
0.85 270 -0.697 0.3779 0.0848