Ab Initio Structure Factors for Spin-Dependent Dark Matter Direct Detection
Journal Article
·
· Physical Review Letters
- TRIUMF, Vancouver, BC (Canada); OSTI
- TRIUMF, Vancouver, BC (Canada); Perimeter Inst. for Theoretical Physics, Waterloo, ON (Canada)
- TRIUMF, Vancouver, BC (Canada); Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
- TRIUMF, Vancouver, BC (Canada)
- Univ. of Washington, Seattle, WA (United States); Argonne National Laboratory (ANL), Argonne, IL (United States)
- TRIUMF, Vancouver, BC (Canada); McGill Univ., Montreal, QC (Canada)
We present converged ab initio calculations of structure factors for elastic spin-dependent WIMP scattering off all nuclei used in dark matter direct-detection searches: 19F, 23Na, 27Al, 29Si, 73Ge, 127I, and 129,131Xe. From a set of established two- and three-nucleon interactions derived within chiral effective field theory, we construct consistent WIMP-nucleon currents at the one-body level, including effects from axial-vector two-body currents. We then apply the in-medium similarity renormalization group to construct effective valence-space Hamiltonians and consistently transformed operators of nuclear responses. Combining the recent advances of natural orbitals with three-nucleon forces expressed in large spaces, we obtain basis-space converged structure factors even in heavy nuclei. Generally results are consistent with previous calculations but large uncertainties in 127I highlight the need for further study.
- Research Organization:
- Univ. of Washington, Seattle, WA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- Grant/Contract Number:
- FG02-97ER41014
- OSTI ID:
- 1980261
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 7 Vol. 128; ISSN 0031-9007
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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