Proposes heavy-element paleodetectors in lead-rich ancient minerals to detect inelastic Higgsino dark matter up to mass splittings of ~920 keV, relaxing radiopurity and depth constraints.
JUNO Conceptual Design Report
8 Pith papers cite this work. Polarity classification is still indexing.
abstract
The Jiangmen Underground Neutrino Observatory (JUNO) is proposed to determine the neutrino mass hierarchy using an underground liquid scintillator detector. It is located 53 km away from both Yangjiang and Taishan Nuclear Power Plants in Guangdong, China. The experimental hall, spanning more than 50 meters, is under a granite mountain of over 700 m overburden. Within six years of running, the detection of reactor antineutrinos can resolve the neutrino mass hierarchy at a confidence level of 3-4$\sigma$, and determine neutrino oscillation parameters $\sin^2\theta_{12}$, $\Delta m^2_{21}$, and $|\Delta m^2_{ee}|$ to an accuracy of better than 1%. The JUNO detector can be also used to study terrestrial and extra-terrestrial neutrinos and new physics beyond the Standard Model. The central detector contains 20,000 tons liquid scintillator with an acrylic sphere of 35 m in diameter. $\sim$17,000 508-mm diameter PMTs with high quantum efficiency provide $\sim$75% optical coverage. The current choice of the liquid scintillator is: linear alkyl benzene (LAB) as the solvent, plus PPO as the scintillation fluor and a wavelength-shifter (Bis-MSB). The number of detected photoelectrons per MeV is larger than 1,100 and the energy resolution is expected to be 3% at 1 MeV. The calibration system is designed to deploy multiple sources to cover the entire energy range of reactor antineutrinos, and to achieve a full-volume position coverage inside the detector. The veto system is used for muon detection, muon induced background study and reduction. It consists of a Water Cherenkov detector and a Top Tracker system. The readout system, the detector control system and the offline system insure efficient and stable data acquisition and processing.
citation-role summary
citation-polarity summary
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background 1representative citing papers
Delayed neutron-capture energy in a Gd-loaded sampling calorimeter recovers invisible hadronic energy and improves 10 GeV proton resolution from 21.8% to 13.3% via event-by-event correction.
De Sitter entropy is carried by hairons from S^4/Z_N instantons, yielding a 1/N information see-saw for neutrino masses with N ~ 10^120.
Nnaturalness generates neutrino mass matrices through multi-sector mixing, excludes democratic couplings, and yields a tower of neutrino eigenstates with theory-determined mass splittings.
A new correlation-exploiting parameter is introduced for dual-baseline neutrino oscillation experiments to aid determination of mass hierarchy and CP phase, analyzed in the T2HKK context.
Current constraints on μ-τ SMEFT four-lepton operators exclude heavy-mediator UV completions of strong neutrino self-interactions in the dimension-six SMEFT without tuned cancellations, while leaving light-mediator scenarios open.
The JUNO LS Mixing Plant purifies master solution to lower radioactive contaminants by approximately two orders of magnitude via extraction and filtration, then mixes it with LAB to deliver ultra-pure liquid scintillator meeting radiopurity requirements.
Neutrino light curves from neutron stars may show an enhanced peak-to-plateau ratio, a density-tracing delay, and transient spectral hardening as diagnostics of hadron-quark phase transitions on 10-50 ms timescales.
citing papers explorer
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Heavy-element paleodetectors for Higgsino dark matter
Proposes heavy-element paleodetectors in lead-rich ancient minerals to detect inelastic Higgsino dark matter up to mass splittings of ~920 keV, relaxing radiopurity and depth constraints.
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A Novel Hadronic Calorimeter With A Direct Neutron Readout
Delayed neutron-capture energy in a Gd-loaded sampling calorimeter recovers invisible hadronic energy and improves 10 GeV proton resolution from 21.8% to 13.3% via event-by-event correction.
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$\mathcal{H}$olographic $\mathcal{N}$aturalness and Information See-Saw Mechanism for Neutrinos
De Sitter entropy is carried by hairons from S^4/Z_N instantons, yielding a 1/N information see-saw for neutrino masses with N ~ 10^120.
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Neutrino Masses and Phenomenology in Nnaturalness
Nnaturalness generates neutrino mass matrices through multi-sector mixing, excludes democratic couplings, and yields a tower of neutrino eigenstates with theory-determined mass splittings.
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Neutrino oscillations at dual baselines
A new correlation-exploiting parameter is introduced for dual-baseline neutrino oscillation experiments to aid determination of mass hierarchy and CP phase, analyzed in the T2HKK context.
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Theoretical and Experimental Constraints in the $\mu$--$\tau$ Four-Lepton Sector of the SMEFT: implications to neutrino self interactions
Current constraints on μ-τ SMEFT four-lepton operators exclude heavy-mediator UV completions of strong neutrino self-interactions in the dimension-six SMEFT without tuned cancellations, while leaving light-mediator scenarios open.
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Mixing plant for JUNO liquid scintillator: Design, construction, installation and commissioning
The JUNO LS Mixing Plant purifies master solution to lower radioactive contaminants by approximately two orders of magnitude via extraction and filtration, then mixes it with LAB to deliver ultra-pure liquid scintillator meeting radiopurity requirements.
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Neutrino diagnostics of hadron-quark phase transition in Neutron Stars
Neutrino light curves from neutron stars may show an enhanced peak-to-plateau ratio, a density-tracing delay, and transient spectral hardening as diagnostics of hadron-quark phase transitions on 10-50 ms timescales.