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| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2410.18138 |
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| _version_ | 1866909469080813568 |
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| author | Ray, Dwaipayan Collister, Robert Rasiwala, Hussain Backes, Lucas Balbuena, Ali V. Brunner, Thomas Casandjian, Iroise Chambers, Chris Cvitan, Megan Daniels, Tim Dilling, Jens Elmansali, Ryan Fairbank, William Fudenberg, Daniel Gornea, Razvan Gratta, Giorgio Iverson, Alec Kwiatkowski, Anna A. Leach, Kyle G. Lennarz, Annika Li, Zepeng Medina-Peregrina, Melissa Murray, Kevin Sullivan, Kevin O Ross, Regan Shaikh, Raad Shang, Xiao Soderstrom, Joseph Varentsov, Victor Yang, Liang |
| author_facet | Ray, Dwaipayan Collister, Robert Rasiwala, Hussain Backes, Lucas Balbuena, Ali V. Brunner, Thomas Casandjian, Iroise Chambers, Chris Cvitan, Megan Daniels, Tim Dilling, Jens Elmansali, Ryan Fairbank, William Fudenberg, Daniel Gornea, Razvan Gratta, Giorgio Iverson, Alec Kwiatkowski, Anna A. Leach, Kyle G. Lennarz, Annika Li, Zepeng Medina-Peregrina, Melissa Murray, Kevin Sullivan, Kevin O Ross, Regan Shaikh, Raad Shang, Xiao Soderstrom, Joseph Varentsov, Victor Yang, Liang |
| contents | Neutrinoless double beta decay {($0νββ$)} provides a way to probe physics beyond the Standard Model of particle physics. The upcoming nEXO experiment will search for $0νββ$ decay in $^{136}$Xe with a projected half-life sensitivity exceeding $10^{28}$ years at the 90\% confidence level using a liquid xenon (LXe) Time Projection Chamber (TPC) filled with 5 tonnes of Xe enriched to $\sim$90\% in the {$ββ$}-decaying isotope $^{136}$Xe. In parallel, a potential future upgrade to nEXO is being investigated with the aim to further suppress radioactive backgrounds and to confirm $ββ$-decay events. This technique, known as Ba-tagging, comprises extracting and identifying the $ββ$-decay daughter $^{136}$Ba ion. One tagging approach being pursued involves extracting a small volume of LXe in the vicinity of a potential $ββ$-decay using a capillary tube and facilitating a liquid-to-gas phase transition by heating the capillary exit. The Ba ion is then separated from the accompanying Xe gas using a radio-frequency (RF) carpet and RF funnel, conclusively identifying the ion as $^{136}$Ba via laser-fluorescence spectroscopy and mass spectrometry. Simultaneously, an accelerator-driven Ba ion source is being developed to validate and optimize this technique. The motivation for the project, the development of the different aspects, along with the current status and results, are discussed here. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_18138 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Ion manipulation from liquid Xe to vacuum: Ba-tagging for a nEXO upgrade and future $0 νββ$ experiments Ray, Dwaipayan Collister, Robert Rasiwala, Hussain Backes, Lucas Balbuena, Ali V. Brunner, Thomas Casandjian, Iroise Chambers, Chris Cvitan, Megan Daniels, Tim Dilling, Jens Elmansali, Ryan Fairbank, William Fudenberg, Daniel Gornea, Razvan Gratta, Giorgio Iverson, Alec Kwiatkowski, Anna A. Leach, Kyle G. Lennarz, Annika Li, Zepeng Medina-Peregrina, Melissa Murray, Kevin Sullivan, Kevin O Ross, Regan Shaikh, Raad Shang, Xiao Soderstrom, Joseph Varentsov, Victor Yang, Liang Instrumentation and Detectors Nuclear Experiment Neutrinoless double beta decay {($0νββ$)} provides a way to probe physics beyond the Standard Model of particle physics. The upcoming nEXO experiment will search for $0νββ$ decay in $^{136}$Xe with a projected half-life sensitivity exceeding $10^{28}$ years at the 90\% confidence level using a liquid xenon (LXe) Time Projection Chamber (TPC) filled with 5 tonnes of Xe enriched to $\sim$90\% in the {$ββ$}-decaying isotope $^{136}$Xe. In parallel, a potential future upgrade to nEXO is being investigated with the aim to further suppress radioactive backgrounds and to confirm $ββ$-decay events. This technique, known as Ba-tagging, comprises extracting and identifying the $ββ$-decay daughter $^{136}$Ba ion. One tagging approach being pursued involves extracting a small volume of LXe in the vicinity of a potential $ββ$-decay using a capillary tube and facilitating a liquid-to-gas phase transition by heating the capillary exit. The Ba ion is then separated from the accompanying Xe gas using a radio-frequency (RF) carpet and RF funnel, conclusively identifying the ion as $^{136}$Ba via laser-fluorescence spectroscopy and mass spectrometry. Simultaneously, an accelerator-driven Ba ion source is being developed to validate and optimize this technique. The motivation for the project, the development of the different aspects, along with the current status and results, are discussed here. |
| title | Ion manipulation from liquid Xe to vacuum: Ba-tagging for a nEXO upgrade and future $0 νββ$ experiments |
| topic | Instrumentation and Detectors Nuclear Experiment |
| url | https://arxiv.org/abs/2410.18138 |