Measurement E179M21
Experiment: | SIDIS Dihadron Beam Spin Asymmetry | |
---|---|---|
Year: | 2020 | |
Spokespersons: | C. Dilks, T. Hayward, A. Vossen | |
Reaction: | ep → π π + X | |
Polarization: | beam (longitudinal) | |
Quantity: | ALUsin (−φh+2φR) | |
Q2: | 1.0 — 10.6 GeV2 | |
W: | 2.0 — 4.0 GeV | |
x: | 0.06 — 0.77 | |
Ebeam: | 10.6041 GeV | |
Publication: |
T.B. Hayward, C. Dilks, A. Vossen, H. Avakian Observation of Beam Spin Asymmetries in the Process ep→eπ+π-X with CLAS12 //
(submitted to PRL)
|
Q2, [GeV2] | x | M(π+,π−), [GeV] | z | PT, [GeV] | ALUsin (−φh+2φR) | uncertainty | syst. uncert. |
---|---|---|---|---|---|---|---|
1.542 | 0.105 | 0.83 | 0.531 | 0.55 | -0.0238802 | 0.00434757 | 0.00133410662445207 |
1.783 | 0.127 | 0.809 | 0.547 | 0.53 | -0.0125572 | 0.00444284 | 0.000705805217562235 |
1.953 | 0.143 | 0.794 | 0.557 | 0.526 | -0.0135531 | 0.00449827 | 0.000734826710481693 |
2.105 | 0.157 | 0.78 | 0.559 | 0.52 | -0.0105369 | 0.00445668 | 0.00167049223325057 |
2.286 | 0.174 | 0.763 | 0.566 | 0.506 | -0.0259787 | 0.00412498 | 0.00162909644704201 |
2.471 | 0.191 | 0.749 | 0.571 | 0.5 | -0.0178146 | 0.00440338 | 0.000779171105179299 |
2.707 | 0.211 | 0.743 | 0.571 | 0.492 | -0.0167748 | 0.00401048 | 0.000747193918836166 |
3.003 | 0.235 | 0.733 | 0.572 | 0.485 | -0.015275 | 0.00418429 | 0.00071470628554275 |
3.307 | 0.261 | 0.716 | 0.571 | 0.468 | -0.0123639 | 0.00446662 | 0.00072491693090043 |
3.721 | 0.294 | 0.701 | 0.569 | 0.46 | -0.0155508 | 0.00422874 | 0.000807232378449816 |
4.337 | 0.342 | 0.679 | 0.565 | 0.44 | -0.0162239 | 0.00434631 | 0.00133339145861348 |
5.658 | 0.44 | 0.63 | 0.547 | 0.408 | -0.00682949 | 0.00448022 | 0.000666074917491984 |
Measurement comment:
Experiment comment:
Process: ep→eπ+π-X
Data tables have the following columns: