Direct detection anomalies in light of data
Description
Measurements from the Gaia satellite have greatly increased our knowledge of the dark matter velocity distributions in the Solar neighborhood. There is evidence for multiple cold structures nearby, including a high-velocity stream counterrotating relative to the Sun. This stream could significantly alter the spectrum of recoil energies and increase the annual modulation of dark matter in direct detection experiments such as DAMA/Libra. We reanalyze the experimental limits from Xenon1T, CDMSlite, PICO-60 and COSINE-100, and compare them to the results of the DAMA/Libra experiment. While we find that this new component of the dark matter velocity distribution can greatly improve the fit to the DAMA/Libra data, both spin-independent and spin-dependent interpretations of the DAMA/Libra signal with elastic and inelastic scattering continue to be ruled out by the null results of other experiments, in particular Xenon1T.
Availability note (English)
Available from https://www.osti.gov/biblio/1567867; DOE Accepted Manuscript full text, or the publishers Best Available Version will be available free of charge after the embargo periodAdditional details
Identifiers
Publishing Information
- Journal Title
- Physical Review D
- Journal Volume
- 100
- Journal Issue
- 5
- Journal Page Range
- vp.
- ISSN
- 2470-0010
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 54041007
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Descriptors DEI
- BARYONS; INELASTIC SCATTERING; MODULATION; NONLUMINOUS MATTER; NUCLEI; RADIATION DETECTION; RECOILS; SIGNALS; SPECTRA; SPIN
- Descriptors DEC
- ANGULAR MOMENTUM; DETECTION; ELEMENTARY PARTICLES; FERMIONS; HADRONS; MATTER; PARTICLE PROPERTIES; SCATTERING
Optional Information
- Contract/Grant/Project number
- SC0017811; SC0012704
- Funding organization
- USDOE Office of Science - SC, High Energy Physics (HEP) (United States)
- Secondary number(s)
- OSTIID--1567867