Author: Delahaye, J.-P.
Paper Title Page
TUYC1
 Multi-GeV Electron and Positron Plasma Wakefield Acceleration Results at FACET  
 
  • S.J. Gessner, E. Adli, J.M. Allen, C.I. Clarke, J.-P. Delahaye, J.T. Frederico, S.Z. Green, M.J. Hogan, N. Lipkowitz, M.D. Litos, M.P. Schmeltz, D.R. Walz, V. Yakimenko, G. Yocky
    SLAC, Menlo Park, California, USA
  • E. Adli
    University of Oslo, Oslo, Norway
  • W. An, C.E. Clayton, C. Joshi, K.A. Marsh, W.B. Mori, N. Vafaei-Najafabadi
    UCLA, Los Angeles, California, USA
  • M. Downer, R. Zgadzaj
    The University of Texas at Austin, Austin, Texas, USA
  • W. Lu
    TUB, Beijing, People's Republic of China
  • P. Muggli
    MPI, Muenchen, Germany
  
  Funding: This work performed [in part] under DOE Contract DE-AC02-76SF00515.
The FACET accelerator test facility at SLAC hosts a new generation of Plasma Wakefield Acceleration (PWFA) experiments. "Two-bunch" experiments have demonstrated high-gradient, highly efficient energy transfer in a plasma wakefield. I will discuss results of follow-up experiments that use a 1.3 meter long plasma to accelerate witness bunch electrons to even higher energies. In a first, we observed multi-GeV acceleration of positrons in a plasma. This is a critical step in demonstrating the applicability of PWFA for High-Energy Physics applications. 		 
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WEPWA057 Design Concepts for Muon-Based Accelerators 2633
 
  • R.D. Ryne
    LBNL, Berkeley, California, USA
  • Y.I. Alexahin, A.D. Bross, K. E. Gollwitzer, N.V. Mokhov, D.V. Neuffer, M.A. Palmer, K. Yonehara
    Fermilab, Batavia, Illinois, USA
  • J.S. Berg, H.G. Kirk, R.B. Palmer, D. Stratakis
    BNL, Upton, Long Island, New York, USA
  • S.A. Bogacz
    JLab, Newport News, Virginia, USA
  • J.-P. Delahaye
    SLAC, Menlo Park, California, USA
  • T.J. Roberts
    Muons, Inc, Illinois, USA
  • P. Snopok
    Illinois Institute of Technology, Chicago, Illinois, USA
  
  Muon-based accelerators have the potential to enable facilities at both the Intensity and the Energy Frontiers. Muon storage rings can serve as high precision neutrino sources, and a muon collider is an ideal technology for a TeV or multi-TeV collider. Progress in muon accelerator designs has advanced steadily in recent years. In regard to 6D muon cooling, detailed and realistic designs now exist that provide more than 5 order-of-magnitude emittance reduction. Furthermore, detector performance studies indicate that with suitable pixelation and timing resolution, backgrounds in the collider detectors can be significantly reduced thus enabling high quality physics results. Thanks to these and other advances in design & simulation of muon systems, technology development, and systems demonstrations, muon storage-ring-based neutrino sources and a muon collider appear more feasible than ever before. A muon collider is now arguably among the most compelling approaches to a multi-TeV lepton collider. This paper summarizes the current status of design concepts for muon-based accelerators for neutrino factories and a muon collider.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-WEPWA057  
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FRXC3
 Muon Accelerators: R&D Towards Future Neutrino Factory and Lepton Collider Capabilities  
 
  • M.A. Palmer, A.D. Bross
    Fermilab, Batavia, Illinois, USA
  • J.-P. Delahaye
    SLAC, Menlo Park, California, USA
  • R.D. Ryne
    LBNL, Berkeley, California, USA
  
  Funding: Work supported by the US DOE under contract DE-AC02-07CH11359.
Muon accelerators offer unique potential for high energy physics applications. Muon storage rings can provide pure, well-characterized and intense neutrino beams for short- and long baseline neutrino-oscillation studies – thus providing unmatched measurement precision for key parameters such as the CP-violating phase and a sensitive probe for new physics. With the muon mass being 200 times that of the electron, muon beams are not subject to the synchrotron radiation and beamstrahlung limits imposed on electron-positron colliders. Thus muon beams can be accelerated to TeV-scale energies and stored in collider rings where the beams can interact for many revolutions. For center-of-mass energies in the multi-TeV range, muon colliders provide the most power efficient route to providing a high luminosity lepton collider. The R&D effort to develop these capabilities by the Muon Accelerator Program, the current status of the concepts, and future plans for this research are described. 		 
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