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Measurement of muon neutrino induced charged current interactions without charged pions in the final state using a new T2K off-axis near detector WAGASCI-BabyMIND / T2K Collaboration
We report a flux-integrated cross section measurement of muon neutrino interactions on water and hydrocarbon via charged current reactions without charged pions in the final state with the WAGASCI-BabyMIND detector which was installed in the T2K near detector hall in 2018. [...]
arXiv:2509.07814. - 24.
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Testing T2K's Bayesian constraints with priors in alternate parameterisations / T2K Collaboration
Bayesian analysis results require a choice of prior distribution. [...]
arXiv:2507.02101. - 18.
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Results from the T2K experiment on neutrino mixing including a new far detector $\mu$-like sample / T2K Collaboration
T2K has made improved measurements of three-flavor neutrino mixing with 19.7(16.3)$\times 10^{20}$ protons on target in (anti-)neutrino-enhanced beam modes. [...]
arXiv:2506.05889. - 9.
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First measurement of neutron capture multiplicity in neutrino-oxygen neutral-current quasielasticlike interactions using an accelerator neutrino beam / T2K Collaboration
We report the first measurement of neutron capture multiplicity in neutrino-oxygen neutral-current quasi-elastic-like interactions at the gadolinium-loaded Super-Kamiokande detector using the T2K neutrino beam, which has a peak energy of about 0.6 GeV. A total of 30 neutral-current quasi-elastic-like event candidates were selected from T2K data corresponding to an exposure of $1.76\times10^{20}$ protons on target. [...]
arXiv:2505.22547.- 2025-08-01 - 26 p. - Published in : Phys. Rev. D 112 (2025) 032003 Fulltext: 2505.22547 - PDF; document - PDF;

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First Measurement of the Electron Neutrino Charged-Current Pion Production Cross Section on Carbon with the T2K Near Detector / T2K Collaboration
The T2K Collaboration presents the first measurement of electron neutrino-induced charged-current pion production on carbon in a restricted kinematical phase space. [...]
arXiv:2505.00516. - 8.
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First differential measurement of the single $\mathbf{\pi}^+$ production cross section in neutrino neutral-current scattering / T2K Collaboration
Since its first observation in the 1970s, neutrino-induced neutral-current single positive pion production (NC1$π^+$) has remained an elusive and poorly understood interaction channel. [...]
arXiv:2503.06849. - 8.
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Signal selection and model-independent extraction of the neutrino neutral-current single $\pi^+$ cross section with the T2K experiment / T2K Collaboration
This article presents a study of single $π^+$ production in neutrino neutral-current interactions (NC1$π^+$) using the FGD1 hydrocarbon target of the ND280 detector of the T2K experiment. [...]
arXiv:2503.06843. - 16.
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First joint oscillation analysis of Super-Kamiokande atmospheric and T2K accelerator neutrino data / T2K Collaboration
The Super-Kamiokande and T2K collaborations present a joint measurement of neutrino oscillation parameters from their atmospheric and beam neutrino data. It uses a common interaction model for events overlapping in neutrino energy and correlated detector systematic uncertainties between the two datasets, which are found to be compatible. [...]
arXiv:2405.12488.- 2025-01-02 - 12 p. - Published in : Phys. Rev. Lett. 134 (2025) 011801 Fulltext: 2405.12488 - PDF; Publication - PDF;

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Measurements of the $\nu_{\mu}$ and $\bar{\nu}_{\mu}$-induced coherent charged pion production cross cections on $^{12}C$ by the T2K experiment / T2K Collaboration
We report an updated measurement of the $\nu_{\mu}$-induced, and the first measurement of the $\bar{\nu}_{\mu}$-induced coherent charged pion production cross section on $^{12}C$ nuclei in the T2K experiment. This is measured in a restricted region of the final-state phase space for which $p_{\mu,\pi} > 0.2$ GeV, $\cos(\theta_{\mu}) > 0.8$ and $\cos(\theta_{\pi}) > 0.6$, and at a mean (anti)neutrino energy of 0.85 GeV using the T2K near detector. [...]
arXiv:2308.16606.- 2023-11-01 - 15 p. - Published in : Phys. Rev. D 108 (2023) 092009 Fulltext: 2308.16606 - PDF; Publication - PDF;

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Updated T2K measurements of muon neutrino and antineutrino disappearance using <math display="inline"><mrow><mn>3.6</mn><mo>×</mo><mrow><msup><mrow><mn>10</mn></mrow><mrow><mn>21</mn></mrow></msup></mrow></mrow></math> protons on target / T2K Collaboration
Muon neutrino and antineutrino disappearance probabilities are identical in the standard three-flavor neutrino oscillation framework, but CPT violation and non-standard interactions can violate this symmetry. In this work we report the measurements of $\sin^{2} \theta_{23}$ and $\Delta m_{32}^2$ independently for neutrinos and antineutrinos. [...]
arXiv:2305.09916.- 2023-10-01 - 10 p. - Published in : Phys. Rev. D 108 (2023) 072011 Fulltext: 2305.09916 - PDF; Publication - PDF;

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