Difference between revisions of "2022 JLAB REVIEW"
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| − | [[File:Tensor polarization.png|thumb|500px|NMR measurement of tensor enhancement maximized by using two locations of ss-RF | + | [[File:Tensor polarization.png|thumb|500px|'''Figure 1:''' NMR measurement of tensor enhancement maximized by using two locations of ss-RF |
while rotating continuously at a fixed rate. The resulting tensor polarization was approximately | while rotating continuously at a fixed rate. The resulting tensor polarization was approximately | ||
36%]] | 36%]] | ||
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''Recent developments in spin 1 enhanced tensor polarization have shown that a tensor polarization of at least (close to) 30% will be achieved under experimental conditions.'' | ''Recent developments in spin 1 enhanced tensor polarization have shown that a tensor polarization of at least (close to) 30% will be achieved under experimental conditions.'' | ||
| − | + | Figure 1 shows the NMR signal of about 36% tensor enhancement by using by using two locations of semi-saturating RF (ss-RF) while rotating the target cup continuously at a fixed rate. The points corresponds to the measured data and the red line is the fulled fitted lineshape of the NMR spectra. The full lineshape is composed of the 1 → 0 (Blue) and 0 → -1 (pink) lines. | |
[https://hallcweb.jlab.org/wiki/images/8/86/Tensor_conditionals.pdf Find the details to support the removal the C1 conditional to the b1 and Azz experiments here]. | [https://hallcweb.jlab.org/wiki/images/8/86/Tensor_conditionals.pdf Find the details to support the removal the C1 conditional to the b1 and Azz experiments here]. | ||
Revision as of 11:09, 19 May 2022
2022 C1 Status Review of Tensor Spin Observables Experiments
Request to remove the C1 conditional to the b1 and Azz experiments
b1 and Azz experiments were C1 conditional approved in PACs 41 and 44, respectively. The conditional requirement stayed: The experiment is conditionally approved with the condition that a tensor polarization of at least (close to) 30% be achieved and reliably demonstrated under experimental conditions.
The b1 and Azz collaborations ask the PAC 50 to remove the conditional from the experiments under the statement: Recent developments in spin 1 enhanced tensor polarization have shown that a tensor polarization of at least (close to) 30% will be achieved under experimental conditions.
Figure 1 shows the NMR signal of about 36% tensor enhancement by using by using two locations of semi-saturating RF (ss-RF) while rotating the target cup continuously at a fixed rate. The points corresponds to the measured data and the red line is the fulled fitted lineshape of the NMR spectra. The full lineshape is composed of the 1 → 0 (Blue) and 0 → -1 (pink) lines.
Find the details to support the removal the C1 conditional to the b1 and Azz experiments here.
Spin 1 Target Development
| Modeling alignment enhancement for solid polarized targets | https://arxiv.org/abs/1707.07065 |
| Enhanced tensor polarization in solid-state targets | https://arxiv.org/abs/2008.09515 |
PAC Results
| Experiment | Title | Scientific Rate | PAC Decision | PAC Results | Condition |
|---|---|---|---|---|---|
| b1 | The Deuteron Tensor Structure Function b1 | A- | C1 | https://www.jlab.org/exp_prog/PACpage/PAC40/PAC40_Final_Report.pdf | The experiment is conditionally approved with the condition that a tensor polarization of at least 30% be achieved and reliably demonstrated under experimental conditions. |
| Azz | Measurements of the Quasi-Elastic and Elastic Deuteron Tensor Asymmetries | A- | C1 | https://www.jlab.org/exp_prog/PACpage/PAC44/PAC44%20Report_FINAL.pdf | The experiment is conditionally approved with the condition that a tensor polarization of close to 30% be achieved and reliably demonstrated under experimental conditions. |
Full Proposals
| Experiment | Proposal |
|---|---|
| b1 | https://www.jlab.org/exp_prog/proposals/13/PR12-13-011.pdf |
| Azz | https://www.jlab.org/exp_prog/proposals/15/PR12-15-005.pdf |
