Difference between revisions of "Detectors on Left HRS"

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Maria, please fill this in.  Feel free to edit the other pages, too.  Or to add new pages. --Bob
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Page under construction (July 2021)
  
 
<h4> Goals and Purpose for L-HRS during the SBS era.</h4>
 
<h4> Goals and Purpose for L-HRS during the SBS era.</h4>
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Used for the HCAL calibration.  Want to measure the HCAL detector efficiency by using pi+ production in gamma p -> pi+ n, as well as ep-> e' p.  The pion on L-HRS is a tag for a neutron. It is a single arm trigger. It needs to be clean to 0.5% level or know the contamination on similar level. We need to remove the proton and positron backgrounds. The L-HRS is also needed for the next hypernuclear experiments (E12-15-008, E12-20-013) in hall A.
 
Used for the HCAL calibration.  Want to measure the HCAL detector efficiency by using pi+ production in gamma p -> pi+ n, as well as ep-> e' p.  The pion on L-HRS is a tag for a neutron. It is a single arm trigger. It needs to be clean to 0.5% level or know the contamination on similar level. We need to remove the proton and positron backgrounds. The L-HRS is also needed for the next hypernuclear experiments (E12-15-008, E12-20-013) in hall A.
  
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<h4>Scintillators</h4>
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<h4>VDCs</h4>
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<h4>Gas Cerenkov</h4>
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<h4>Pion Rejector</h4>
  
 
<h4> A1 Aerogel information </h4>
 
<h4> A1 Aerogel information </h4>

Revision as of 12:13, 20 July 2021

Page under construction (July 2021)

Goals and Purpose for L-HRS during the SBS era.

Used for the HCAL calibration. Want to measure the HCAL detector efficiency by using pi+ production in gamma p -> pi+ n, as well as ep-> e' p. The pion on L-HRS is a tag for a neutron. It is a single arm trigger. It needs to be clean to 0.5% level or know the contamination on similar level. We need to remove the proton and positron backgrounds. The L-HRS is also needed for the next hypernuclear experiments (E12-15-008, E12-20-013) in hall A.

Scintillators

VDCs

Gas Cerenkov

Pion Rejector

A1 Aerogel information

Performance in 2018 .... https://logbooks.jlab.org/files/2018/10/3605975/HRS_AerogelPerformance_20181008_gogami.pdf

A1 analysis examples in 2018 .... https://logbooks.jlab.org/entry/3624086 .... https://logbooks.jlab.org/entry/3605642 .... https://logbooks.jlab.org/files/2018/10/3611832/right_online_latest.pdf


back to main page: https://hallaweb.jlab.org/wiki/index.php/L-HRS_for_SBS