Testing the RG Running of the Leptonic Dirac CP Phase with Reactor Neutrinos
Fuente:
arXiv
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Preprint |
| Published: |
2024
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866915372773408768 |
|---|---|
| author | Ge, Shao-Feng Kong, Chui-Fan Pasquini, Pedro |
| author_facet | Ge, Shao-Feng Kong, Chui-Fan Pasquini, Pedro |
| contents | We propose the possibility of using the near detector at reactor neutrino experiments to probe the renormalization group (RG) running effect on the leptonic Dirac CP phase $δ_D$. Although the reactor neutrino oscillation cannot directly measure $δ_D$, it can probe the deviation $Δδ\equiv δ_D(Q^2_d) - δ_D(Q^2_p)$ caused by the RG running. Being a key element, the mismatched momentum transfers at neutrino production ($Q^2_p$) and detection ($Q^2_d$) processes can differ by two orders. We illustrate this concept with the upcoming Taishan Antineutrino Observatory (TAO, also known as JUNO-TAO) experiment and obtain the projected sensitivity to the CP RG running beta function $β_δ$. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2411_18251 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Testing the RG Running of the Leptonic Dirac CP Phase with Reactor Neutrinos Ge, Shao-Feng Kong, Chui-Fan Pasquini, Pedro High Energy Physics - Phenomenology High Energy Physics - Experiment We propose the possibility of using the near detector at reactor neutrino experiments to probe the renormalization group (RG) running effect on the leptonic Dirac CP phase $δ_D$. Although the reactor neutrino oscillation cannot directly measure $δ_D$, it can probe the deviation $Δδ\equiv δ_D(Q^2_d) - δ_D(Q^2_p)$ caused by the RG running. Being a key element, the mismatched momentum transfers at neutrino production ($Q^2_p$) and detection ($Q^2_d$) processes can differ by two orders. We illustrate this concept with the upcoming Taishan Antineutrino Observatory (TAO, also known as JUNO-TAO) experiment and obtain the projected sensitivity to the CP RG running beta function $β_δ$. |
| title | Testing the RG Running of the Leptonic Dirac CP Phase with Reactor Neutrinos |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2411.18251 |