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    Prospects for Detecting the Diffuse Supernova Neutrino Background with JUNO

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    We present the detection potential for the diffuse supernova neutrino background (DSNB) at the Jiangmen Underground Neutrino Observatory (JUNO), using the inverse-beta-decay (IBD) detection channel on free protons. We employ the latest information on the DSNB flux predictions, and investigate in detail the background and its reduction for the DSNB search at JUNO. The atmospheric neutrino induced neutral current (NC) background turns out to be the most critical background, whose uncertainty is carefully evaluated from both the spread of model predictions and an envisaged \textit{in situ} measurement. We also make a careful study on the background suppression with the pulse shape discrimination (PSD) and triple coincidence (TC) cuts. With latest DSNB signal predictions, more realistic background evaluation and PSD efficiency optimization, and additional TC cut, JUNO can reach the significance of 3σ\sigma for 3 years of data taking, and achieve better than 5σ\sigma after 10 years for a reference DSNB model. In the pessimistic scenario of non-observation, JUNO would strongly improve the limits and exclude a significant region of the model parameter space
    Pontificia Universidad Católica de Chile: Repositorio UC
    Archivio istituzionale della ricerca - Politecnico di Milano
    HAL AMU
    Portail HAL Nantes Université
    HAL Descartes
    HAL Mines Nantes
    Publikationsserver der RWTH Aachen University
    Juelich Shared Electronic Resources
    Archivio istituzionale della ricerca - Università di Ferrara
    Archivio istituzionale della ricerca - Università di Padova
    Archives ouvertes de Paris-Saclay
    HAL-IN2P3
    AIR Universita degli studi di Milano
    Archives ouvertes Hal IMT Atlantique
    Archivio della Ricerca - Università di Roma 3
    GSI Repository
    HAL
    Oskar Bordeaux

    Sub-percent precision measurement of neutrino oscillation parameters with JUNO

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    International audienceJUNO is a multi-purpose neutrino observatory under construction in the south of China. This publication presents new sensitivity estimates for the measurement of the Δm312\Delta m^2_{31}, Δm212\Delta m^2_{21}, sin⁡2θ12\sin^2 \theta_{12}, and sin⁡2θ13\sin^2 \theta_{13} oscillation parameters using reactor antineutrinos, which is one of the primary physics goals of the experiment. The sensitivities are obtained using the best knowledge available to date on the location and overburden of the experimental site, the nuclear reactors in the surrounding area and beyond, the detector response uncertainties, and the reactor antineutrino spectral shape constraints expected from the TAO satellite detector. It is found that the Δm312\Delta m^2_{31}, Δm212\Delta m^2_{21}, and sin⁡2θ12\sin^2 \theta_{12} oscillation parameters will be determined to better than 0.5% precision in six years of data collection, which represents approximately an order of magnitude improvement over existing constraints
    Pontificia Universidad Católica de Chile: Repositorio UC
    Archivio istituzionale della ricerca - Politecnico di Milano
    HAL AMU
    Portail HAL Nantes Université
    HAL Descartes
    HAL Mines Nantes
    Publikationsserver der RWTH Aachen University
    Archivio istituzionale della ricerca - Università di Ferrara
    Archivio istituzionale della ricerca - Università di Padova
    arXiv.org e-Print Archive
    Archives ouvertes de Paris-Saclay
    HAL-IN2P3
    AIR Universita degli studi di Milano
    Archives ouvertes Hal IMT Atlantique
    Archivio della Ricerca - Università di Roma 3
    GSI Repository
    HAL
    Oskar Bordeaux
    Portail HAL U-Bordeaux
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