Corpus ID: 118527060

A testable conventional hypothesis for the DAMA-LIBRA annual modulation

@article{Nygren2011ATC,
  title={A testable conventional hypothesis for the DAMA-LIBRA annual modulation},
  author={David R. Nygren},
  journal={arXiv: Instrumentation and Methods for Astrophysics},
  year={2011}
}
  • D. Nygren
  • Published 2011
  • Physics
  • arXiv: Instrumentation and Methods for Astrophysics
The annual modulation signal observed by the DAMA-LIBRA Collaboration (D-L) may plausibly be explained as a consequence of energy deposited in the NaI(Tl) crystals by cosmic ray muons penetrating the detector. Delayed pulses in the approximate energy range of interest have been observed as a sequel to energy deposited by UV irradiation. The same behavior may be reasonably expected to occur for energy deposited by any source of ionization or excitation. D-L can test this hypothesis by searching… Expand
Muon-Induced Neutrons Do Not Explain the DAMA Data.
We present an accurate model of the muon-induced background in the DAMA/LIBRA experiment. Our work challenges proposed mechanisms which seek to explain the observed DAMA signal modulation withExpand
No role for muons in the DAMA annual modulation results
This paper gathers arguments and reasons why muons surviving the Gran Sasso mountain cannot mimic the Dark Matter annual modulation signature exploited by the DAMA/NaI and DAMA/LIBRA experiments. AExpand
DAMA vs. the annually modulated muon background
We compare the DAMA signal to the muon flux underground, which is annually modulated due to temperature variations in the stratosphere. We show that the muon flux at LNGS and the DAMA signal areExpand
Muon detector for the COSINE-100 experiment
The COSINE-100 dark matter search experiment has started taking physics data with the goal of performing an independent measurement of the annual modulation signal observed by DAMA/LIBRA. A muonExpand
On the cosmic ray muon hypothesis for DAMA
The DAMA dark matter search experiment observes a statistically significant percent-level variation of its low-energy count rate with a period of one year. In this note we recall some of theExpand
Muon detector for the COSINE-100 experiment COSINE-100 Collaboration
The COSINE-100 dark matter search experiment has started taking physics data with the goal of performing an independent measurement of the annual modulation signal observed by DAMA/LIBRA. A muonExpand
First data from DM-Ice17
Astrophysical observations have provided convincing evidence for the existence of dark matter, yet direct observation of the dark matter particles has not been conclusively established. DAMAExpand
A Search for the Dark Matter Annual Modulation in South Pole Ice
Astrophysical observations and cosmological data have led to the conclusion that nearly one quarter of the Universe consists of dark matter. Under certain assumptions, an observable signature of darkExpand
DARK MATTER INVESTIGATION BY DAMA AT GRAN SASSO
Experimental observations and theoretical arguments at Galaxy and larger scales have suggested that a large fraction of the Universe is composed by Dark Matter particles. This has motivated the DAMAExpand
Initial performance of the COSINE-100 experiment
COSINE is a dark matter search experiment based on an array of low background NaI(Tl) crystals located at the Yangyang underground laboratory. The assembly of COSINE-100 was completed in the summerExpand
...
1
2
3
4
...

References

SHOWING 1-7 OF 7 REFERENCES
Consistent dark matter interpretation for CoGeNT and DAMA/LIBRA
In this paper, we study the recent excess of low-energy events observed by the CoGeNT Collaboration and the annual modulation reported by the DAMA/LIBRA Collaboration, and discuss whether theseExpand
First results from DAMA/LIBRA and the combined results with DAMA/NaI
The highly radiopure ≃ 250 kg NaI(Tl) DAMA/LIBRA set-up is running at the Gran Sasso National Laboratory of the INFN. In this paper the first result obtained by exploiting the model independentExpand
One Model Explains DAMA/LIBRA, CoGENT, CDMS, and XENON
Many experiments seek dark matter by detecting relatively low energy nuclear recoils. Yet since events from ordinary physics with energies in the 1-100 KeV range are commonplace, all claims ofExpand
Experimental constraints on a dark matter origin for the DAMA annual modulation effect.
TLDR
A new type of germanium detector is employed to conclusively rule out a standard isothermal galactic halo of weakly interacting massive particles as the explanation for the annual modulation effect leading to the claim of dark matter interactions in the DAMA experiment. Expand
First dark matter results from the XENON100 experiment.
TLDR
First dark matter results from the analysis of 11.17 live days of nonblind data are presented, which constrains the interpretation of the CoGeNT and DAMA signals as being due to spin-independent, elastic, light mass WIMP interactions. Expand
Dark Matter Search Results from the CDMS II Experiment
TLDR
The results from the completed Cryogenic Dark Matter Search (CDMS II) experiment, which searched for dark matter in the form of weakly interacting massive particles (WIMP), cannot be interpreted with confidence as evidence for WIMP interactions, but neither event can be ruled out as representing signal. Expand
The DAMA/LIBRA apparatus
The similar or equal to 250 kg highly radiopure NaI(Tl) DAMA/LIBRA apparatus, running at the Gran Sasso National Laboratory (LNGS) of the INFN, is described. (C) 2008 Elsevier B.V. All rightsExpand