Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Preprint |
| Published: |
2020
|
| Subjects: | |
| Online Access: | https://arxiv.org/abs/2002.07821 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866913923172663296 |
|---|---|
| author | Kim, Doojin Park, Jong-Chul Lee, Gil-Ho Fong, Kin Chung |
| author_facet | Kim, Doojin Park, Jong-Chul Lee, Gil-Ho Fong, Kin Chung |
| contents | We propose a new dark-matter detection strategy that will potentially enable the search for super-light dark matter $m_χ\simeq 0.1$ keV, improving the minimum detectable mass by more than three orders of magnitude compared to ongoing experiments. This can be achieved by intimately integrating the target material, specifically the $π$-bond electrons in graphene, into a Josephson junction to create a highly sensitive detector capable of detecting energy deposits from dark matter as small as $\sim 0.1$ meV. We investigate detection prospects of pg-, ng-, and $μ$g-scale detectors by calculating the scattering rate between dark matter and free electrons confined in two-dimensional graphene, including Pauli-blocking factors and in-medium screening effects. We find that the proposed detector is expected to not only serve as a complementary probe of super-light dark matter but also achieve higher experimental sensitivities than other proposed experiments, assuming zero readout noise, thanks to the extremely low threshold energy of our graphene Josephson junction sensor. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2002_07821 |
| institution | arXiv |
| publishDate | 2020 |
| record_format | arxiv |
| spellingShingle | GLIMPSE: Graphene-based super-Light Invisible Matter Particle SEarch Kim, Doojin Park, Jong-Chul Lee, Gil-Ho Fong, Kin Chung High Energy Physics - Phenomenology Mesoscale and Nanoscale Physics High Energy Physics - Experiment We propose a new dark-matter detection strategy that will potentially enable the search for super-light dark matter $m_χ\simeq 0.1$ keV, improving the minimum detectable mass by more than three orders of magnitude compared to ongoing experiments. This can be achieved by intimately integrating the target material, specifically the $π$-bond electrons in graphene, into a Josephson junction to create a highly sensitive detector capable of detecting energy deposits from dark matter as small as $\sim 0.1$ meV. We investigate detection prospects of pg-, ng-, and $μ$g-scale detectors by calculating the scattering rate between dark matter and free electrons confined in two-dimensional graphene, including Pauli-blocking factors and in-medium screening effects. We find that the proposed detector is expected to not only serve as a complementary probe of super-light dark matter but also achieve higher experimental sensitivities than other proposed experiments, assuming zero readout noise, thanks to the extremely low threshold energy of our graphene Josephson junction sensor. |
| title | GLIMPSE: Graphene-based super-Light Invisible Matter Particle SEarch |
| topic | High Energy Physics - Phenomenology Mesoscale and Nanoscale Physics High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2002.07821 |