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02-2-1034-2000/2006
Priority:1
Status: Extended

Hadron Production Studies for the Neutrino Factory
and for the Atmospheric Neutrino Flux
( HARP, PS214)

Leaders:   G.A. Chelkov
S.A. Bunyatov

Scientific Programme:
Measurements of secondary hadrons produced on thin and thick nuclear targets by beams of protons and pions with the momentum in the range 1.5 to 15 GeV/c are proposed to be carried out over the full solid angle at CERN`s PS. The main motivation is twofold: to acquire adequate knowledge of pion yields for an optimal design of the recently proposed intense neutrino source based on muon decay in a muon storage ring (neutrino factory) and to improve substantially the calculation of the atmospheric neutrino flux which is needed for a refined interpretation of the evidence for neutrino oscillation from the study of atmospheric neutrinos in present and forthcoming experiments.
Additional motivations are measurement of the yield of low-momentum backward-going pions, which could be used for a high-intensity stopped-muon source as a by-product of the neutrino factory, and a better prediction of the fluxes in conventional neutrino beams, such as the neutrino beam from the KEK 12 GeV/c Proton Synchrotron, important for the interpretation of the results of the K2K experiment, and at the low-energy (8 GeV/c) booster at Fermilab, used for the MiniBooNe experiment.
The responsibility of the JINR group in the HARP experiment is
- Refurbishing, installation, commisioning and operation of the NOMAD drift chambers in the HARP experiment.
- Assembling, testing and operation of the electromagnetic calorimeter, the muon identifier, the cosmic wall and the beam TOF system.
- Development of the DAQ, monitoring, reconstruction and simulation software.
- Participation in the data analysis.

Expected main results in 2005:
List of projects:
  Project Leader Priority
(period of realisation)
1. HARP G.A. Chelkov
S.A. Bunyatov 		1   (2000-2006)

List of Activities
  Activity or Experiment Leader
Status
HARP, PS214 G.A. Chelkov
S.A. Bunyatov
Data analysis

Collaboration   
Country or international
organization 		City Institute or Laboratory
Belgium Louvain-la-Neuve UCL
Bulgaria Sofia SU
CERN Geneva
France Paris Univ. VI
Univ. VII
Germany Dortmund Univ.
Italy Bari Univ.
INFN
Legnaro INFN LNL
Milan Univ.
Naples Univ.
INFN
Padua Univ.
Rome Univ. I
INFN
Trieste Univ.
INFN
Russia Moscow LPI RAS
Protvino SRC-IHEP
Troitsk INR RAS
Spain Valencia UV
Switzerland Geneva UniGe
The United Kingdom Didcot RAL
Oxford Univ.
Sheffield Univ.
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