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  • Open Access

First measurement of muon neutrino charged-current interactions on hydrocarbon without pions in the final state using multiple detectors with correlated energy spectra at T2K

K. Abe et al. (T2K Collaboration)
Phys. Rev. D 108, 112009 – Published 18 December 2023
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Abstract
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  • INTRODUCTION
  • THE T2K EXPERIMENT
  • EVENT SIMULATION AND SELECTION
  • ANALYSIS STRATEGY
  • RESULTS
  • CONCLUSIONS
  • ACKNOWLEDGMENTS
  • APPENDICES
    • References

    Abstract

    This paper reports the first measurement of muon neutrino charged-current interactions without pions in the final state using multiple detectors with correlated energy spectra at T2K. The data was collected on hydrocarbon targets using the off-axis T2K near detector (ND280) and the on-axis T2K near detector (INGRID) with neutrino energy spectra peaked at 0.6 GeV and 1.1 GeV, respectively. The correlated neutrino flux presents an opportunity to reduce the impact of the flux uncertainty and to study the energy dependence of neutrino interactions. The extracted double-differential cross sections are compared to several Monte Carlo neutrino-nucleus interaction event generators showing the agreement between both detectors individually and with the correlated result.

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    • Received 4 April 2023
    • Accepted 17 November 2023

    DOI:https://doi.org/10.1103/PhysRevD.108.112009

    Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.

    Published by the American Physical Society

    Physics Subject Headings (PhySH)

    1. Research Areas
    Neutrino interactionsNucleus-neutrino interactions
    Particles & Fields

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    Issue

    Vol. 108, Iss. 11 — 1 December 2023

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    Images

    • Figure 1
      Figure 1

      Multinucleon cross section on C12 as a function of energy for the Nieves et al. and the Martini et al. models.

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    • Figure 2
      Figure 2

      Nominal neutrino mode flux prediction at ND280 (top) and INGRID (bottom) separated by neutrino flavor.

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    • Figure 3
      Figure 3

      Overview of the 14 standard modules and cross configuration.

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    • Figure 4
      Figure 4

      An exploded view of a standard module.

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    • Figure 5
      Figure 5

      A schematic view of the proton module and the standard modules.

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    • Figure 6
      Figure 6

      An exploded view of the proton module.

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    • Figure 7
      Figure 7

      An exploded view of the ND280 off-axis detector.

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    • Figure 8
      Figure 8

      Event distribution for measured data and MC prediction in reconstructed muon momentum and angle for the ND280 signal samples stacked by true topology. The purity of each topology is listed in the legend, and the last bin for muon momentum contains all events with momentum greater than 5  GeV/c.

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    • Figure 9
      Figure 9

      Event distribution for measured data and MC prediction in reconstructed muon momentum and angle for the ND280 signal samples stacked by true topology. The purity of each topology is listed in the legend.

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    • Figure 10
      Figure 10

      Event distribution for measured data and MC prediction in reconstructed equivalent distance in iron and angle for the INGRID signal sample stacked by true topology. Through-going events are all placed in the final distance bin. The purity of each topology is listed in the legend.

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    • Figure 11
      Figure 11

      Event distribution for measured data and MC prediction in reconstructed muon momentum and angle for the ND280 control samples stacked by true topology. The purity of each topology is listed in the legend, and the last bin for muon momentum contains all events with momentum greater than 5  GeV/c.

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    • Figure 12
      Figure 12

      Event distribution for measured data and MC prediction in reconstructed equivalent distance in iron and angle for the INGRID control sample stacked by true topology. Through-going events are all placed in the final distance bin. The purity of each topology is listed in the legend.

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    • Figure 13
      Figure 13

      Input flux correlation matrix binned in neutrino energy for both ND280 and INGRID. The flux is highly correlated both across the energy spectrum and between the detectors.

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    • Figure 14
      Figure 14

      Selection efficiency with postfit uncertainty for the ND280 cross-section bins as function of true muon momentum in muon angle bins. Note that the final bin extending to 30  GeV/c has been omitted for clarity.

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    • Figure 15
      Figure 15

      Selection efficiency with postfit uncertainty for the INGRID cross-section bins as function of true muon momentum in muon angle bins. Note that the final bin extending to 30  GeV/c has been omitted for clarity.

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    • Figure 16
      Figure 16

      Estimated total systematic uncertainty separated by parameter class for the ND280 cross-section bins as function of true muon momentum in muon angle bins. Note that the final bin extending to 30  GeV/c has been omitted for clarity.

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    • Figure 17
      Figure 17

      Estimated total systematic uncertainty separated by parameter class for the INGRID cross-section bins as function of true muon momentum in muon angle bins. Note that the final bin extending to 30  GeV/c has been omitted for clarity.

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    • Figure 18
      Figure 18

      Event distribution for measured data and the pre/postfit MC prediction in reconstructed muon momentum and angle for the ND280 signal samples.

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    • Figure 19
      Figure 19

      Event distribution for measured data and the pre/postfit MC prediction in reconstructed muon momentum and angle for the ND280 control samples.

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    • Figure 20
      Figure 20

      Event distribution for measured data and the pre/postfit MC prediction in reconstructed muon distance and angle for the INGRID signal sample (top) and control sample (bottom).

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    • Figure 21
      Figure 21

      Extracted ND280 cross section as a function of muon momentum in angle bins compared to the nominal neut MC prediction. Note that the final bin extending to 30  GeV/c has been omitted for clarity.

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    • Figure 22
      Figure 22

      Extracted INGRID cross section as a function of muon momentum in angle bins compared to the nominal neut MC prediction. Note that the final bin extending to 30  GeV/c has been omitted for clarity.

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    • Figure 23
      Figure 23

      Percent error increase for each cross-section bin (flattened as a 1D array) from the additional studies for the small p-value.

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    • Figure 24
      Figure 24

      Extracted ND280 cross section as a function of muon momentum in angle bins compared to neut, genie, and nuwro all using a similar model. Note that the final bin extending to 30  GeV/c has been omitted for clarity.

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    • Figure 25
      Figure 25

      Extracted INGRID cross section as a function of muon momentum in angle bins compared to neut, genie, and nuwro all using a similar model. Note that the final bin extending to 30  GeV/c has been omitted for clarity.

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    • Figure 26
      Figure 26

      Extracted ND280 cross section as a function of muon momentum in angle bins compared to several different multinucleon predictions using nuwro and the same LFG ground state. Note that the final bin extending to 30  GeV/c has been omitted for clarity.

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    • Figure 27
      Figure 27

      Extracted INGRID cross section as a function of muon momentum in angle bins compared to several different different multi-nucleon predictions using nuwro and the same LFG ground state. Note that the final bin extending to 30  GeV/c has been omitted for clarity.

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    • Figure 28
      Figure 28

      Extracted ND280 cross section from this analysis compared to the neutrino analysis in Ref. [69]. The final momentum bin extending to 30  GeV/c has been omitted for clarity.

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    • Figure 29
      Figure 29

      Extracted ND280 cross section as a function of muon momentum in angle bins compared to the nominal neut MC prediction including the final momentum bin.

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    • Figure 30
      Figure 30

      Extracted INGRID cross section as a function of muon momentum in angle bins compared to the nominal neut MC prediction including the final momentum bin.

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