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J-FUTURE

Mar 28 – 30, 2022
Jefferson Lab / Messina University
Europe/Paris timezone

Session

Infrastructure and detectors

Mar 28, 2022, 5:00 PM
Jefferson Lab / Messina University

Jefferson Lab / Messina University

Polo Papardo, edificio SBA, Viale Ferdinando Stagno d'Alcontres 31, Messina (Italy)

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  1. 26. Instrumentation for high luminosity upgrade of CLAS12
    Annalisa D'Angelo (University of Rome Tor Vergata and INFN Roma Tor Vergata)
    3/28/22, 5:00 PM

    The CLAS12 detector located in the Hall-B of the Thomas Jefferson National Accelerator Facility has been designed to operate at the nominal luminosity of $10^{35} \text{cm}^{-2} \text{s}^{-1}$, assuming a unitary particle reconstruction efficiency. Improving the performance of CLAS12 in terms of luminosity times the reconstruction efficiency will significantly enhance the physics reach of...

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  2. 7. From CLAS to CLAS12 and CLAS24
    Volker Burkert (Jefferson Lab)
    3/28/22, 5:30 PM
  3. 28. 24 GeV CEBAF FFA energy upgrade
    Alex Bogacz (Jefferson Lab)
    3/29/22, 4:45 PM

    Encouraged by recent success of CBETA, a proposal was formulated to increase the CEBAF energy from the present 12 GeV to 22-24 GeV by replacing the highest-energy arcs (Arc 7-10) with Fixed Field Alternating Gradient (FFA) arcs, where beams with energies spanning a factor of two or more, can be simultaneously transport through the same array of combined function magnets. The new pair of FFA...

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  4. 35. Ce+BAF : Considerations and Prospects for Polarized (and unpolarized) Positron Beams
    Joe Grames (JLab)
    3/29/22, 5:15 PM

    While conventional electron-driven positron sources have been built and operated at accelerator facilities producing unpolarized positron beams, we are at Jefferson Lab in a unique positron to provide also positrons with a high degree of spin polarization. The Polarized Electrons for Polarized Positrons (PEPPo) experiment demonstrated a very efficient means to produce highly spin polarized...

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  5. 25. Luminosity: CEBAF Beam Power Limits
    Jay Benesch (JLab)
    3/29/22, 5:45 PM

    In 1998 when planning for the 12 GeV upgrade got underway, the maximum beam power was specified as 960 kW, consistent with the original 1 MW limit. While the Environmental Assessment (EA) conducted in 2007 allowed 1 MW each to Halls A and C, the 12 GeV upgrade project kept the original power limit specification. The C100 cavities were designed with high input impedance, emphasizing gradient...

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  6. 38. Opportunities beyond hadron physics: muon and neutrino beams
    Antonino Fulci (Messina U.), Marco Battaglieri (JLab/INFNGE)
    3/30/22, 5:00 PM

    High intensity extracted electron/positron beams are a precious source of secondary beams. A muon beam (up to $10^9\mu/$s in the energy range 1-6 GeV) and a neutrino beam (up to $10^{18}\nu/$m$^2/$year with energy mainly below 100 MeV) are generated by the interaction of the primary CEBAF 12 GeV (or 20 GeV) electron (positron) beam with the beam dump. Several processes (A-sstralhung, resonant...

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  7. 24. Opportunities beyond hadron physics: BDX, nuBDX, JPOS
    Mariangela Bondi (INFN)
    3/30/22, 5:30 PM

    Upgrades of the CEBAF accelerator can turn JLAB into the reference lepton-beam facility at intensity frontier opening new research opportunities beyond hadron physics. The upgraded machine will add new capabilities including positron beams and high intensity secondary beams of muons, neutrinos and, if exists, light dark matter particles.
    To take advantage of these opportunities new and/or...

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