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Related Experiment Video

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Förster Resonance Energy Transfer Measurements in Living Plant Cells

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Sensitivity Challenge of the Next-Generation Bolometric Double-Beta Decay Experiment.

Long Ma¹, Huan-Zhong Huang^1,2, Yu-Gang Ma¹

¹Key Laboratory of Nuclear Physics and Ion-Beam Application (MOE), Institute of Modern Physics, Fudan University, Shanghai 200433, China.

Research (Washington, D.C.)

|December 20, 2024

Summary

Neutrinoless double-beta decay searches use cryogenic crystal bolometers. Future upgrades aim to significantly reduce backgrounds and increase sensitivity for discovering Majorana neutrinos.

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Area of Science:

Particle Physics
Nuclear Physics
Experimental Physics

Background:

Cryogenic crystal bolometers are vital for neutrinoless double-beta (0νββ) decay searches, a process key to determining neutrino Majorana nature.
The CUORE (Cryogenic Underground Observatory for Rare Events) experiment, a ton-scale bolometric detector, has demonstrated the effectiveness of bolometric technology for 0νββ studies.
The planned CUPID project aims to enhance sensitivity by reducing backgrounds using scintillating crystals and dual readout to mitigate alpha particle events.

Purpose of the Study:

To discuss strategies for future technology development to enhance experimental sensitivity in neutrinoless double-beta decay searches.
To address the technical challenges in further increasing detection capabilities for exploring the inverted neutrino mass hierarchy.
To outline pathways toward the potential discovery of Majorana neutrinos.

Main Methods:

Utilizing scintillating crystals to differentiate signal from background events.
Implementing dual readout technology for improved event identification and background rejection.
Leveraging cryogenic crystal bolometer technology for high-sensitivity rare event detection.

Main Results:

CUORE has achieved significant success and demonstrated the advantages of bolometric technology for 0νββ decay studies.
The CUPID project proposes substantial background reduction through advanced detector technologies.
Further technological advancements are necessary to fully explore the neutrino mass region and potentially discover Majorana neutrinos.

Conclusions:

Cryogenic bolometers are essential tools for rare event searches like 0νββ decay.
The CUPID project represents a significant step forward in background reduction and sensitivity for 0νββ experiments.
Continued innovation in detector technology is crucial for future discoveries in neutrino physics and determining the neutrino mass hierarchy.