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The T2K Experiment

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Predicting the T2K Neutrino Flux and Measuring Oscillation Parameters

Part of the book series: Springer Theses ((Springer Theses))

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Abstract

This chapter introduces the T2K experiment, highlighting its physics goals, detector design, and major results published by the collaboration since the commencement of data-taking in January 2010. Particular emphasis is placed on the description of the T2K beamline, which is most relevant for the work presented in this thesis.

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Notes

  1. 1.

    Always referring to the kinetic energy.

  2. 2.

    Pressure in the primary beamline is kept below \(3 \times 10^{-6}\) Pa to minimise the beam energy loss through interactions in residual gas.

  3. 3.

    ESM19 is used for the vertical beam centre, but not the horizontal.

  4. 4.

    99.9% branching ratio for \(\pi ^+ \rightarrow \mu ^+ + \nu _{\mu }\), rather than \(\pi ^+ \rightarrow e^+ + \nu _{e}\), due to helicity suppression.

  5. 5.

    The photodiode depletion voltage falls by 50% after a one month exposure in the T2K muon beam.

  6. 6.

    Main background for \(\nu _e\) appearance at SK.

  7. 7.

    The light is first absorbed and then reemitted with a wavelength shifted from the fibre’s absorption range.

  8. 8.

    The T2K beam energy of \({\sim }600\) MeV is too low to produce tau leptons in the final state, as demonstrated in Table 3.6.

  9. 9.

    Photons at SK can be detected via pair production, if at least one \(e^{\pm }\) is Cherenkov radiating.

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Authors and Affiliations

  1. University of Oxford, Oxford, UK

    Tomislav Vladisavljevic

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  1. Tomislav Vladisavljevic
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Correspondence to Tomislav Vladisavljevic .

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Vladisavljevic, T. (2020). The T2K Experiment. In: Predicting the T2K Neutrino Flux and Measuring Oscillation Parameters. Springer Theses. Springer, Cham. https://doi.org/10.1007/978-3-030-51174-6_3

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