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Dark Matter: DAMA/LIBRA and its perspectives
by R. Bernabei, P. Belli, F. Cappella, V. Caracciolo, R. Cerulli, C.J. Dai, A. d’Angelo, A. Incicchitti, A. Leoncini, X.H. Ma, V. Merlo, F. Montecchia, X.D. Sheng, Z.P. Ye
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Submission summary
| Authors (as registered SciPost users): | Pierluigi Belli |
| Submission information | |
|---|---|
| Preprint Link: | scipost_202208_00088v1 (pdf) |
| Date accepted: | 2022-10-18 |
| Date submitted: | 2022-08-30 16:14 |
| Submitted by: | Belli, Pierluigi |
| Submitted to: | SciPost Physics Proceedings |
| Proceedings issue: | 14th International Conference on Identification of Dark Matter (IDM2022) |
| Ontological classification | |
|---|---|
| Academic field: | Physics |
| Specialties: |
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| Approach: | Experimental |
Abstract
The long-standing model-independent annual modulation effect measured by DAMA deep underground at Gran Sasso Laboratory with different experimental configurations is summarized and perspectives will be highlighted. DAMA/LIBRA–phase2 set-up, ≃ 250 kg highly radio-pure NaI(Tl) confirms the evidence of a signal that meets all the requirements of the model independent Dark Matter annual modulation signature at high C.L.; the full exposure is 2.86 ton × yr over 22 annual cycles. The experiment is currently collecting data in the DAMA/LIBRA–phase2 empowered configuration with an even lower software energy threshold. Other recent claims are shortly commented.
Published as SciPost Phys. Proc. 12, 025 (2023)
Reports on this Submission
Anonymous Report 1 on 2022-10-2 (Invited Report)
- Cite as: Anonymous, Report on arXiv:scipost_202208_00088v1, delivered 2022-10-02, doi: 10.21468/SciPost.Report.5814
Report
In this proceeding authors present measurements of Dark Matter annual modulation signature with a high C.L. over 22 annual cycles. This is a second phase of the experiment with lower software threshold. They also show perspectives and comment on other claims.
The manuscript is clearly written and well organised. It is also suitably formatted for publication.
I recommend the manuscript for publication after verification of Fig.2 where authors claimed to add a new point 0.75keV (I see at 1keV). Can authors explain this?
Requested changes
Verification of Fig.2 where authors claimed to add a new point 0.75keV (I see at 1keV). Can authors explain this?
Author: Pierluigi Belli on 2022-10-03 [id 2866]
(in reply to Report 1 on 2022-10-02)
Many thanks to the Anonymous Referee. The first data point in fig. 2 is at 0.75-1.00 keV. And the energy bin is shorter than the others of 0.5 keV. To be clear, fig.2 shows three data points below 2 keV, whose intervals are: 0.75-1.00 keV; 1.0-1.5 keV; 1.5-2.0 keV.
This new data point has been added after a dedicated analysis for lowering the software energy threshold in the already-acquired data by using the same technique as before with dedicated studies on the efficiencies. The error of this point is rather large and thus this led to the necessity to improve the experimental set-up, as indeed done at the end of 2021.
Anonymous on 2022-09-28 [id 2859]
The new version of the paper with reduced numebr of pages is in attachment. Best regards, Pierluigi Belli
Attachment:
idm22_belli_subm3.pdf