Difference between revisions of "NPS Experiments"

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The NPS Science Program currently includes 8 approved experiments divided into two run groups.  
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The NPS Science Program currently includes 8 approved experiments divided into two run groups. The first phase of run group 1 is scheduled for running in 2023/24. Two of the experiments use the NPS in conjunction with other instrumentation, e.g., Compact Photon Source, Positron Beams, etc.
  
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'''Run Group 1a:'''
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'''Run Group 1a (NPS at small angles and HMS - SHMS used as carriage for NPS):'''
  
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* '''E12-13-010''' (Run status: active): Exclusive Deeply Virtual Compton and Neutral Pion Cross-Section Measurements in Hall C [https://www.jlab.org/exp_prog/proposals/13/PR12-13-010.pdf Link]
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* '''E12-13-010''' (Run status: complete): Exclusive Deeply Virtual Compton and Neutral Pion Cross-Section Measurements in Hall C [https://www.jlab.org/exp_prog/proposals/13/PR12-13-010.pdf Link]
  
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* '''E12-13-007''' (Run Status: active): Measurement of Semi-Inclusive pi0 Production as Validation of Factorization [https://www.jlab.org/exp_prog/proposals/13/PR12-13-007.pdf Link]
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* '''E12-13-007''' (Run Status: complete): Measurement of Semi-Inclusive pi0 Production as Validation of Factorization [https://www.jlab.org/exp_prog/proposals/13/PR12-13-007.pdf Link]
  
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* '''E12-22-006''' (Run status: active): Deeply Virtual Compton Scattering off the neutron with the Neutral Particle Spectrometer in Hall C [https://misportal.jlab.org/pacProposals/proposals/1764/attachments/152132/Proposal.pdf Link]
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* '''E12-22-006''' (Run status: complete): Deeply Virtual Compton Scattering off the neutron with the Neutral Particle Spectrometer in Hall C [https://misportal.jlab.org/pacProposals/proposals/1764/attachments/152132/Proposal.pdf Link]
  
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'''Run Group 2:'''
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* '''E12-23-014''' (Run status: complete): Measurements of the Ratio R = sigmaL/sigmaT p/d ratios, Pt dependence, and azimuthal asymmetries in Semi-Inclusive DIS pi0 production form proton and deuteron targets using the NPS in Hall C [https://misportal.jlab.org/pacProposals/proposals/1884/attachments/174135/Proposal.pdf Link]
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'''Run Group 1b (NPS at small angles and HMS - SHMS used as carriage for NPS):'''
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* '''E12-06-114''' (35 days moved to Hall C): Measurements of the electron-helicity dependent cross-sections of deeply virtual Compton scattering
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'''Run Group 2 (NPS at large angles and HMS - SHMS used as carriage for NPS):'''
 
* '''E12-14-003''': Wide-angle Compton Scattering at 8 and 10 GeV Photon Energies [https://www.jlab.org/exp_prog/proposals/14/PR12-14-003.pdf Link]
 
* '''E12-14-003''': Wide-angle Compton Scattering at 8 and 10 GeV Photon Energies [https://www.jlab.org/exp_prog/proposals/14/PR12-14-003.pdf Link]
  
 
* '''E12-14-005''': Wide Angle Exclusive Photoproduction of pi-zero Mesons [https://www.jlab.org/exp_prog/proposals/14/PR12-14-005.pdf Link]
 
* '''E12-14-005''': Wide Angle Exclusive Photoproduction of pi-zero Mesons [https://www.jlab.org/exp_prog/proposals/14/PR12-14-005.pdf Link]
  
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'''Run Group 1b:'''
 
  
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* '''E12-06-114''' (35 days moved to Hall C): Measurements of the electron-helicity dependent cross-sections of deeply virtual Compton scattering
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'''Run Group 3 (NPS+CPS - SHMS used as carriage for NPS)'''
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* '''E12-17-008''': Polarization Observables in Wide-Angle Compton Scattering at large s, t, and u [https://misportal.jlab.org/pacProposals/proposals/1353/attachments/98388/Proposal.pdf Link]
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'''NPS+CPS'''
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'''Run Group 4 (NPS reconfigured as part of an ECAL+HCAL system downstream from target)'''
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* '''E12-17-008''': Polarization Observables in Wide-Angle Compton Scattering at large s, t, and u [https://misportal.jlab.org/pacProposals/proposals/1353/attachments/98388/Proposal.pdf Link]
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* '''E12-23-004''': A Search for a Nonzero Strange Form Factor of the Proton at 2.5 (GeV/c)^2 [https://misportal.jlab.org/pacProposals/proposals/1862/attachments/174136/Proposal.pdf Link]
  
  
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'''Proposals'''
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'''Run Group 5 (NPS+Positrons)'''
 
* '''C12-20-012''' (status C2): Deeply Virtual Compton Scattering using a positron beam in Hall C [https://misportal.jlab.org/pacProposals/proposals/1570/attachments/127333/Proposal.pdf Link]
 
* '''C12-20-012''' (status C2): Deeply Virtual Compton Scattering using a positron beam in Hall C [https://misportal.jlab.org/pacProposals/proposals/1570/attachments/127333/Proposal.pdf Link]
  
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* PR12-22-005: A Search for a Nonzero Strange Form Factor of the Proton at 2.5 (GeV/c)2 [https://misportal.jlab.org/pacProposals/proposals/1771/attachments/152092/Proposal.pdf Link]
 
  
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* C12-18-005: Timelike Compton Scattering Off a Transversely Polarized Proton [https://misportal.jlab.org/pacProposals/proposals/1784/attachments/152129/Proposal.pdf Link]
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'''LOIs and proposal being developed'''
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* LOI12-23-003: GluToNY: Gluon tomography in nucleons by gamma-polarimetry
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* LOI12-23-014: Recoil Nucleon Polarization in Deeply Virtual Compton Scattering and Neutral Pion Electroproduction in Hall C
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* C12-18-005: Timelike Compton Scattering Off a Transversely Polarized Proton [https://misportal.jlab.org/pacProposals/proposals/1784/attachments/152129/Proposal.pdf Link] (requires NPS + CPS)

Latest revision as of 10:50, 19 July 2024

The NPS Science Program currently includes 8 approved experiments divided into two run groups. The first phase of run group 1 is scheduled for running in 2023/24. Two of the experiments use the NPS in conjunction with other instrumentation, e.g., Compact Photon Source, Positron Beams, etc.

Run Group 1a (NPS at small angles and HMS - SHMS used as carriage for NPS):

  • E12-13-010 (Run status: complete): Exclusive Deeply Virtual Compton and Neutral Pion Cross-Section Measurements in Hall C Link
  • E12-13-007 (Run Status: complete): Measurement of Semi-Inclusive pi0 Production as Validation of Factorization Link
  • E12-22-006 (Run status: complete): Deeply Virtual Compton Scattering off the neutron with the Neutral Particle Spectrometer in Hall C Link
  • E12-23-014 (Run status: complete): Measurements of the Ratio R = sigmaL/sigmaT p/d ratios, Pt dependence, and azimuthal asymmetries in Semi-Inclusive DIS pi0 production form proton and deuteron targets using the NPS in Hall C Link

Run Group 1b (NPS at small angles and HMS - SHMS used as carriage for NPS):

  • E12-06-114 (35 days moved to Hall C): Measurements of the electron-helicity dependent cross-sections of deeply virtual Compton scattering


Run Group 2 (NPS at large angles and HMS - SHMS used as carriage for NPS):

  • E12-14-003: Wide-angle Compton Scattering at 8 and 10 GeV Photon Energies Link
  • E12-14-005: Wide Angle Exclusive Photoproduction of pi-zero Mesons Link


Run Group 3 (NPS+CPS - SHMS used as carriage for NPS)

  • E12-17-008: Polarization Observables in Wide-Angle Compton Scattering at large s, t, and u Link


Run Group 4 (NPS reconfigured as part of an ECAL+HCAL system downstream from target)

  • E12-23-004: A Search for a Nonzero Strange Form Factor of the Proton at 2.5 (GeV/c)^2 Link


Run Group 5 (NPS+Positrons)

  • C12-20-012 (status C2): Deeply Virtual Compton Scattering using a positron beam in Hall C Link


LOIs and proposal being developed

  • LOI12-23-003: GluToNY: Gluon tomography in nucleons by gamma-polarimetry
  • LOI12-23-014: Recoil Nucleon Polarization in Deeply Virtual Compton Scattering and Neutral Pion Electroproduction in Hall C
  • C12-18-005: Timelike Compton Scattering Off a Transversely Polarized Proton Link (requires NPS + CPS)
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