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Ab initio nuclear response functions for dark matter searches

Daniel Gazda (Institutionen för fysik, Subatomär fysik och plasmafysik (Chalmers)) ; Riccardo Catena (Institutionen för fysik, Subatomär fysik och plasmafysik (Chalmers)) ; Christian Forssén (Institutionen för fysik, Subatomär fysik och plasmafysik (Chalmers))
Physical Review D (2470-0010). Vol. 95 (2017), 10, p. Article Number: 103011.
[Artikel, refereegranskad vetenskaplig]

We study the process of dark matter particles scattering off He-3,He-4 with nuclear wave functions computed using an ab initio many-body framework. We employ realistic nuclear interactions derived from chiral effective field theory at next-to-next-to-leading order (NNLO) and develop an ab initio scheme to compute a general set of different nuclear response functions. In particular, we then perform an accompanying uncertainty quantification on these quantities and study error propagation to physical observables. We find a rich structure of allowed nuclear responses with significant uncertainties for certain spin-dependent interactions. The approach and results that are presented here establish a new framework for nuclear structure calculations and uncertainty quantification in the context of direct and (certain) indirect searches for dark matter.



Denna post skapades 2017-07-13. Senast ändrad 2017-09-01.
CPL Pubid: 250680

 

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Institutioner (Chalmers)

Institutionen för fysik, Subatomär fysik och plasmafysik (Chalmers)

Ämnesområden

Teoretisk kemi

Chalmers infrastruktur