Hadronic Uncertainties in the Elastic Scattering of Supersymmetric Dark Matter

Details Hadronic Uncertainties in the Elastic Scattering of Supersymmetric Dark Matter Hadronic Uncertainties in the Elastic Scattering of Supersymmetric Dark Matter

2008-01-23

arxiv.org/abs/0801.3656v2

Phys.Rev.D77:065026,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

25 pages, 10 figures. v2: added references. To appear in PRD

Scientific paper

10.1103/PhysRevD.77.065026

We review the uncertainties in the spin-independent and -dependent elastic scattering cross sections of supersymmetric dark matter particles on protons and neutrons. We propagate the uncertainties in quark masses and hadronic matrix elements that are related to the $\pi$-nucleon $\sigma$ term and the spin content of the nucleon. By far the largest single uncertainty is that in spin-independent scattering induced by our ignorance of the $$ matrix elements linked to the $\pi$-nucleon $\sigma$ term, which affects the ratio of cross sections on proton and neutron targets as well as their absolute values. This uncertainty is already impacting the interpretations of experimental searches for cold dark matter. {\it We plead for an experimental campaign to determine better the $\pi$-nucleon $\sigma$ term.} Uncertainties in the spin content of the proton affect significantly, but less strongly, the calculation of rates used in indirect searches.

Affiliated with

Also associated with

No associations

Rating

Hadronic Uncertainties in the Elastic Scattering of Supersymmetric Dark Matter does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Hadronic Uncertainties in the Elastic Scattering of Supersymmetric Dark Matter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hadronic Uncertainties in the Elastic Scattering of Supersymmetric Dark Matter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-282527