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Hadron production experiments to constrain accelerator-based neutrino flux

Abstract : The knowledge of (anti-)neutrino fluxes is one of the largest limitation in accelerator-based precision neutrino experiments. The main limitation arise from the poorly known production cross section of neutrino parents in hadron-nucleus interactions. Strategies used by neutrino experiment to constrain their fluxes using external hadroproduction data will be described and illustrated with an example of a tight collaboration between T2K and NA61/SHINE experiments. This enabled a reduction of the T2K neutrino flux uncertainty from ∼25% (without external constraints) down to ∼10%. On-going developments to further constrain the T2K (anti-)neutrino flux will be discussed and recent results from NA61/SHINE will be reviewed. As the next-generation long baseline experiments aim for a neutrino flux uncertainty at a level of a few percent, the future data-taking plans of NA61/SHINE will be discussed.
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Contributor : Claudine Bombar Connect in order to contact the contributor
Submitted on : Thursday, December 15, 2016 - 2:53:20 PM
Last modification on : Friday, November 6, 2020 - 3:34:57 AM


  • HAL Id : in2p3-01417271, version 1



L. Zambelli. Hadron production experiments to constrain accelerator-based neutrino flux. NEUTRINO2016 – XXVII International Conference on Neutrino Physics an Astrophysics, Jul 2016, London, United Kingdom. ⟨in2p3-01417271⟩



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