Autor: |
Dario Buttazzo, Paolo Panci, Nicola Rossi, Alessandro Strumia |
Jazyk: |
angličtina |
Rok vydání: |
2020 |
Předmět: |
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Zdroj: |
Journal of High Energy Physics, Vol 2020, Iss 4, Pp 1-21 (2020) |
Druh dokumentu: |
article |
ISSN: |
1029-8479 |
DOI: |
10.1007/JHEP04(2020)137 |
Popis: |
Abstract The DAMA collaboration reported an annually modulated rate with a phase compatible with a Dark Matter induced signal. We point out that a slowly varying rate can bias or even simulate an annual modulation if data are analyzed in terms of residuals computed by subtracting approximately yearly averages starting from a fixed date, rather than a background continuous in time. In the most extreme case, the amplitude and phase of the annual modulation reported by DAMA could be alternatively interpreted as a decennial growth of the rate. This possibility appears mildly disfavoured by a detailed study of the available data, but cannot be safely excluded. In general, a decreasing or increasing rate could partially reduce or enhance a true annual modulation, respectively. The issue could be clarified by looking at the full time-dependence of the DAMA total rate, not explicitly published so far. |
Databáze: |
Directory of Open Access Journals |
Externí odkaz: |
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