Dark Matter Annual Modulation Analysis with Combined Nuclear and Electron Recoil Channels
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| Formato: | Preprint |
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2024
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| author | TEXONO Collaboration Li, H. B. Pandey, M. K. Leung, C. H. Singh, L. Wong, H. T. Chi, H. -C. Deniz, M. C., Greeshma Chen, J. -W. Hsu, H. C. Karadag, S. Karmakar, S. Kumar, V. Li, J. Lin, F. K. Lin, S. T. Liu, C. -P. Liu, S. K. Ma, H. Mishra, D. K. Saraswat, K. Sharma, V. Singh, M. K. Singh, M. K. Singh, V. Tanabe, D. Wang, J. S. Wu, C. -P. Yang, L. T. Yeh, C. H. Yue, Q. |
| author_facet | TEXONO Collaboration Li, H. B. Pandey, M. K. Leung, C. H. Singh, L. Wong, H. T. Chi, H. -C. Deniz, M. C., Greeshma Chen, J. -W. Hsu, H. C. Karadag, S. Karmakar, S. Kumar, V. Li, J. Lin, F. K. Lin, S. T. Liu, C. -P. Liu, S. K. Ma, H. Mishra, D. K. Saraswat, K. Sharma, V. Singh, M. K. Singh, M. K. Singh, V. Tanabe, D. Wang, J. S. Wu, C. -P. Yang, L. T. Yeh, C. H. Yue, Q. |
| contents | After decades of experimental efforts, the DAMA/LIBRA(DL) annual modulation (AM) analysis on the $χN$ (WIMP Dark Matter interactions on nucleus) channel remains the only one which can be interpreted as positive signatures. This has been refuted by numerous time-integrated (TI) and AM analysis. It has been shown that $χe$ (WIMP interactions with electrons) alone is not compatible with the DL AM data. We expand the investigations by performing an AM analysis with the addition of $χe$ long-range and short-range interactions to $χN$, derived using the Frozen Core Approximation method. Two scenarios are considered, where the $χN$ and $χe$ processes are due to a single $χ$ ($Γ^{1 χ}_{tot}$) or two different $χ$'s ($Γ^{2 χ}_{tot}$). The combined fits with $χN$ and $χe$ provide stronger significance to the DL AM data which are compatible with the presence of additional physical effects beyond $χN$ alone. This is the first analysis which explores how $χe$ AM can play a role in DL AM. The revised allowed regions as well as the exclusion contours from the other null AM experiments are presented. All DL AM allowed parameter spaces in $χN$ and $χe$ channels under both $Γ^{1 χ}_{tot}$ and $Γ^{2 χ}_{tot}$ are excluded at the 90\% confidence level by the combined null AM results. It can be projected that DL-allowed parameter spaces from generic models with interactions induced by two-WIMPs are ruled out. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_04916 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Dark Matter Annual Modulation Analysis with Combined Nuclear and Electron Recoil Channels TEXONO Collaboration Li, H. B. Pandey, M. K. Leung, C. H. Singh, L. Wong, H. T. Chi, H. -C. Deniz, M. C., Greeshma Chen, J. -W. Hsu, H. C. Karadag, S. Karmakar, S. Kumar, V. Li, J. Lin, F. K. Lin, S. T. Liu, C. -P. Liu, S. K. Ma, H. Mishra, D. K. Saraswat, K. Sharma, V. Singh, M. K. Singh, M. K. Singh, V. Tanabe, D. Wang, J. S. Wu, C. -P. Yang, L. T. Yeh, C. H. Yue, Q. High Energy Physics - Experiment Cosmology and Nongalactic Astrophysics After decades of experimental efforts, the DAMA/LIBRA(DL) annual modulation (AM) analysis on the $χN$ (WIMP Dark Matter interactions on nucleus) channel remains the only one which can be interpreted as positive signatures. This has been refuted by numerous time-integrated (TI) and AM analysis. It has been shown that $χe$ (WIMP interactions with electrons) alone is not compatible with the DL AM data. We expand the investigations by performing an AM analysis with the addition of $χe$ long-range and short-range interactions to $χN$, derived using the Frozen Core Approximation method. Two scenarios are considered, where the $χN$ and $χe$ processes are due to a single $χ$ ($Γ^{1 χ}_{tot}$) or two different $χ$'s ($Γ^{2 χ}_{tot}$). The combined fits with $χN$ and $χe$ provide stronger significance to the DL AM data which are compatible with the presence of additional physical effects beyond $χN$ alone. This is the first analysis which explores how $χe$ AM can play a role in DL AM. The revised allowed regions as well as the exclusion contours from the other null AM experiments are presented. All DL AM allowed parameter spaces in $χN$ and $χe$ channels under both $Γ^{1 χ}_{tot}$ and $Γ^{2 χ}_{tot}$ are excluded at the 90\% confidence level by the combined null AM results. It can be projected that DL-allowed parameter spaces from generic models with interactions induced by two-WIMPs are ruled out. |
| title | Dark Matter Annual Modulation Analysis with Combined Nuclear and Electron Recoil Channels |
| topic | High Energy Physics - Experiment Cosmology and Nongalactic Astrophysics |
| url | https://arxiv.org/abs/2412.04916 |