Letter of Intent betabeam design study

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Letter of Intentbeta-beam design study

• Mats Lindroos
• On behalf of the
• Beta-beam working group

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CERN b-beam baseline scenario
SPS
PS
P. Zucchelli, Phys. Lett. B, 532 (2002) 166-172
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Beta-beam

• Isotope production using the ISOL method with a
  proton driver of SPL type
• Bunching in high frequency ECR source
• Production and acceleration to 100 MeV/u already
  studied in EURISOL study
• TARGISOL (U. Koester)
• Accumulation in low energy storage ring
• Acceleration to 300 MeV/u using fast cycling
  synchrotron, FFAG or cyclotron
• Acceleration to higher energies using existing
  CERN accelerators
• Injection and accumulation using newly developed
  scheme

M. Benedikt and S. Hancock, CERN
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Physics reach

• Combined with a Super Beam the beta-beam can
  successfully address CP violation for values of
  the mixing angle q13 as small as 1 degree
• With improvements on the isotope production it is
  possible that the beta-beam could become
  comparable to a neutrino factory
• In conjunction with the Super-beam, the beta-beam
  would also allow for tests on T and CPT in the
  neutrino sector

M. Mezzetto, Proceedings of Nufact 02, London,
2002, hep-ex/0302007 and presentation at
NUFACT03, New York, 2003
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CERN to FREJUS
CERN
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UNO like detector in Frejus

• UNO 400 KTon water Cerenkov detector
• Originally designed for proton decay studies and
  supernovae explosion observations
• A multipurpose observatory which will address
  several fundamental physics issues besides
  neutrino oscillations

Chang Kee Jung, hep-ex/0005046
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Moriond meeting

• Annual electro week meeting in Les Arcs
• Workshop on Radioactive beams for Nuclear and
  Neutrino Physics
• Organizer Jacques Bouchez, CEA, Saclay
• Many new ideas, among them
• Multiple targets for Ne production
• ECR bunching (P. Sortais)
• Ne and He in the decay ring simultaneously
• Low energy beta facility
• GSI, GANIL and CERN (in close detector)
• C. Volpe, hep-ph/0303222, submitted to Phys. Rev.
  Let

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Synergies

• Close synergy with the EURISOL project
• Isotope production
• Acceleration to 100 MeV/u
• Possible synergies with GSI up-grade plans for
  accelerator issues and decay ring
• Possible synergies with LHC heavy ion programme

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Design study

• A full Technical Design Report could be achieved
  within five years
• Technical Preparatory work can immediately start
  on
• Target design
• ECR source
• High energy accumulation scheme
• Study and design work
• Accelerator issues
• Decay ring
• Superconducting dipole design
• Simulation and design work to handle decay losses

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Who are we?

• Signatures sorted in alphabetical order on
  institute and author
• Jacques Bouchez, Luigi Mosca, Olivier Napoly,
  Jacques Payet,
• Saclay, CEA, France
• Michael Benedikt, Peter Butler, Roland Garoby,
  Juan-Jose Gomez Cadenas, Steven Hancock, Pilar
  Hernandez, Ulli Koester, Mats Lindroos, Matteo
  Magistris, Thomas Nilsson, Fredrik Wenander
• CERN, Switzerland
• Alain Blondel, Simone Gilardoni
• Geneva University, Switzerland
• Oliver Boine-Frankenheim, Bernhard Franzke, Ralph
  Hollinger , Markus Steck , Peter Spiller, Helmuth
  Weick
• GSI, Germany
• Bernard Laune, Orsay , Alex Mueller, Orsay,
  Pascal Sortais, Grenoble , Antonio Villari,
  GANIL, Cristina Volpe, Orsay
• IN2P3, France
• Alberto Facco, Legnaro, Mauro Mezzetto, Padua,
  Vittorio Palladino, Napoli, Andrea Pisent,
  Legnaro
• INFN, Italy
• Thierry Delbar, Guido Ryckewaert
• Louvain-la-neuve, Belgium
• Marielle Chartier
• Liverpool university, UK
• Chris Prior
• RAL, UK

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Conclusions

• All alternatives for the production of intense
  neutrino beams should be fully studied
• Physics reach
• Technical Design Report with reliable cost
  estimates
• The beta-beam facility, the super-beam and an UNO
  like detector is a very powerful tool for
  research in neutrino physics
• The organization and governance of the design
  study should come from ESGARD and EMCOG
• Synergies with nuclear physics studies
• ESGARD recommends that the beta-beam forms part
  of either
• A unique neutrino beam design study (hosted by
  RAL)
• The EURISOL design study (hosted by GANIL)