CLAS Physics Database

JLab | Search | Overview | Login | Edit | Register

Measurement E151M69

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 : 0.0245 GeV2
W : 1295 GeV
ε : 0.8564
Ebeam : 1.0539 GeV
εL: 0.1094 

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 -0.2525 0.5788 0.0415
0.25 54 0.5396 0.5055 0.0683
0.35 30 1.4325 0.5863 0.1657
0.35 42 0.1739 0.5376 0.0359
0.35 54 -0.0946 0.5655 0.0319
0.45 30 0.2893 0.5126 0.0445
0.45 42 -0.2771 0.3966 0.0435
0.45 54 0.5409 0.6721 0.0685
0.45 258 -0.7407 0.5778 0.0895
0.45 270 0.78 0.6431 0.0937
0.55 42 -0.2107 0.4956 0.0384
0.55 54 0.7545 0.6172 0.0909
0.55 234 -0.2602 0.5047 0.0422
0.55 246 -0.0077 0.405 0.03
0.55 258 0.5579 0.3779 0.0702
0.55 270 -0.0299 0.4579 0.0302
0.55 282 -1.3835 0.4553 0.1602
0.65 138 0.2807 0.585 0.0438
0.65 150 1.2476 0.5774 0.1451
0.65 162 0.3193 0.6485 0.0471
0.65 210 -0.5408 0.6237 0.0684
0.65 222 -0.2019 0.523 0.0378
0.65 234 0.3592 0.4348 0.0507
0.65 246 0.2366 0.3496 0.0403
0.65 258 0.4187 0.3177 0.0563
0.65 270 0.33 0.3726 0.0481
0.65 282 -0.5692 0.5758 0.0714
0.75 138 -0.0843 0.4882 0.0315
0.75 150 0.4784 0.4929 0.0621
0.75 162 0.5217 0.5009 0.0665
0.75 174 0.0818 0.5207 0.0314
0.75 186 -0.0011 0.5365 0.03
0.75 198 0.475 0.6651 0.0618
0.75 210 1.0699 0.6677 0.1254
0.75 222 0.0579 0.5112 0.0307
0.75 234 0.537 0.3857 0.0681
0.75 246 -0.4165 0.31 0.0561
0.75 258 0.1212 0.3242 0.033
0.75 270 -0.0153 0.3619 0.0301
0.75 282 1.3282 0.6031 0.1541
0.85 126 0.4602 0.7035 0.0603
0.85 138 -0.2423 0.5445 0.0407
0.85 150 0.6725 0.5058 0.0822
0.85 162 -0.1144 0.5258 0.0327
0.85 174 -0.1126 0.4782 0.0326
0.85 186 0.8099 0.7084 0.0969
0.85 210 0.5838 0.697 0.0729
0.85 222 0.3843 0.5996 0.053
0.85 234 0.2365 0.3902 0.0403
0.85 246 -0.2155 0.315 0.0387
0.85 258 -0.0937 0.2997 0.0318
0.85 270 0.7977 0.3911 0.0956
0.85 282 0.0689 0.587 0.031