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JLab E12-17-003 (nnΛ experiment)
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<center><font size="5"> JLab E12-17-003 (nnΛ experiment)</font></center> | <center><font size="5"> JLab E12-17-003 (nnΛ experiment)</font></center> | ||
=Overview= | =Overview= | ||
| − | This experiment | + | This experiment searches for the either resonance or bound nnΛ state through the <sup>3</sup>H(e,e'K<sup>+</sup>)nnΛ reaction at JLab Hall A. <br> The experiment is scheduled to perform from Oct 22 to Nov 11, 2018.<br> |
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| + | |||
=Experimental setup= | =Experimental setup= | ||
| − | We will use the two arms of HRSs in JLab Hall A.<br> The beam at E<sub>e</sub> = 4.3 GeV will be incident on a gaseous tritium target with a thickness of about 80 mg/cm<sup>2</sup>, <br> and scattered electrons and K<sup>+</sup>s with central momenta of 2.2 and 1.8 GeV/<I>c</I> will be measured by HRSs. | + | We will use the two arms of HRSs in JLab Hall A.<br> The beam at E<sub>e</sub> = 4.3 GeV will be incident on a gaseous tritium target with a thickness of about 80 mg/cm<sup>2</sup>, <br> and scattered electrons and K<sup>+</sup>s with central momenta of 2.2 and 1.8 GeV/<I>c</I> will be measured by HRSs in coincidence at θ<sub>K</sub> = θ<sub>e'</sub> = 13.2 degrees. |
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| + | =Apparatus= | ||
| + | ==Target== | ||
| + | |||
| + | Corrected target thicknesses for all targets and both T2 cells, Lognumber 3619916. Submitted by meekins on Fri, 11/02/2018 - 16:32. https://logbooks.jlab.org/entry/3619916 | ||
| + | |||
| + | ==Spectrometer== | ||
| + | ==Detectors== | ||
| + | ==DAQ== | ||
=Reports= | =Reports= | ||
=Meeting= | =Meeting= | ||
=Analysis= | =Analysis= | ||
| + | =Data summary= | ||
| + | ==Production data== | ||
| + | * <sup>3</sup>H(e,e'K<sup>+</sup>)nnΛ | ||
| + | |||
| + | ==Calibration data== | ||
| + | * z reconstruction (multi-foil target) | ||
| + | * Angles (Sieve slit + (multi foil)) | ||
| + | * Momentum + absolute energy scale (Λ / Σ<sup>0</sup> from an H target) | ||
| + | * <sup>3</sup>He background (using <sup>3</sup>He target) | ||
| + | * [[BPM Calibration]] | ||
| + | |||
=Links= | =Links= | ||
<ul> | <ul> | ||
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<li>[https://hallaweb.jlab.org/dvcslog/LambdaN/ elog]</li> | <li>[https://hallaweb.jlab.org/dvcslog/LambdaN/ elog]</li> | ||
<li>[http://lambda.phys.tohoku.ac.jp/~db/mediawiki/index.php/JLab_E12-17-003 Wiki in Tohoku University]</li> | <li>[http://lambda.phys.tohoku.ac.jp/~db/mediawiki/index.php/JLab_E12-17-003 Wiki in Tohoku University]</li> | ||
| + | <li>[[HYP_HRS-HKS|Link to Wiki of future hypernuclear experiments]]</li> | ||
</ul> | </ul> | ||
Latest revision as of 20:37, 23 February 2021
Overview
This experiment searches for the either resonance or bound nnΛ state through the 3H(e,e'K+)nnΛ reaction at JLab Hall A.
The experiment is scheduled to perform from Oct 22 to Nov 11, 2018.
Experimental setup
We will use the two arms of HRSs in JLab Hall A.
The beam at Ee = 4.3 GeV will be incident on a gaseous tritium target with a thickness of about 80 mg/cm2,
and scattered electrons and K+s with central momenta of 2.2 and 1.8 GeV/c will be measured by HRSs in coincidence at θK = θe' = 13.2 degrees.
Apparatus
Target
Corrected target thicknesses for all targets and both T2 cells, Lognumber 3619916. Submitted by meekins on Fri, 11/02/2018 - 16:32. https://logbooks.jlab.org/entry/3619916
Spectrometer
Detectors
DAQ
Reports
Meeting
Analysis
Data summary
Production data
- 3H(e,e'K+)nnΛ
Calibration data
- z reconstruction (multi-foil target)
- Angles (Sieve slit + (multi foil))
- Momentum + absolute energy scale (Λ / Σ0 from an H target)
- 3He background (using 3He target)
- BPM Calibration