CLAS Physics Database

JLab | Search | Overview | Login | Edit | Register

Measurement E151M46

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 : 0.0171 GeV2
W : 1265 GeV
ε : 0.8899
Ebeam : 1.0539 GeV
εL: 0.099 

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 0.3994 0.4888 0.0545
0.25 54 -0.7225 0.4109 0.0875
0.35 30 1.0279 0.6626 0.1207
0.35 42 -0.4475 0.4636 0.0591
0.35 54 1.0447 0.548 0.1226
0.35 66 -0.2623 0.6574 0.0423
0.45 30 0.4439 0.4842 0.0587
0.45 42 0.0466 0.4385 0.0305
0.45 54 0.4881 0.5316 0.0631
0.45 258 -0.3826 0.4124 0.0529
0.45 270 0.1667 0.4398 0.0355
0.55 30 -0.5815 0.6008 0.0726
0.55 42 -0.2058 0.4969 0.0381
0.55 54 0.634 0.5351 0.0781
0.55 234 0.0286 0.4927 0.0302
0.55 246 -0.0663 0.3242 0.0309
0.55 258 -0.1065 0.3037 0.0324
0.55 270 -0.6999 0.3023 0.0851
0.55 282 1.441 0.548 0.1667
0.65 138 1.1371 0.6407 0.1328
0.65 150 -0.2051 0.4558 0.038
0.65 162 0.6228 0.578 0.0769
0.65 174 0.0218 0.5059 0.0301
0.65 186 -0.1195 0.6083 0.0329
0.65 222 0.3009 0.5163 0.0455
0.65 234 0.0785 0.3302 0.0313
0.65 246 -0.0654 0.2516 0.0309
0.65 258 0.031 0.2614 0.0302
0.65 270 0.6 0.3339 0.0746
0.65 282 0.7438 0.5558 0.0898
0.75 138 -0.093 0.4664 0.0318
0.75 150 -0.4041 0.3667 0.0549
0.75 162 -0.234 0.3687 0.0401
0.75 174 0.0025 0.3471 0.03
0.75 186 0.763 0.3995 0.0918
0.75 198 -0.2493 0.4444 0.0413
0.75 210 -1.0583 0.4412 0.1241
0.75 222 -0.4171 0.3566 0.0561
0.75 234 -0.0062 0.3238 0.03
0.75 246 0.3802 0.2743 0.0526
0.75 258 0.06 0.2605 0.0308
0.75 270 -0.197 0.2932 0.0374
0.75 282 0.3715 0.4812 0.0518
0.85 138 1.2403 0.5257 0.1443
0.85 150 0.4383 0.4851 0.0582
0.85 162 0.1443 0.3851 0.0342
0.85 174 -0.5916 0.3696 0.0737
0.85 186 -0.0357 0.4499 0.0303
0.85 198 0.0525 0.4823 0.0306
0.85 210 -0.4317 0.4628 0.0575
0.85 222 -0.2511 0.4273 0.0414
0.85 234 -0.3074 0.3277 0.0461
0.85 246 -0.0039 0.2775 0.03
0.85 258 -0.0034 0.3237 0.03
0.85 270 0.1524 0.3988 0.0347