2010/11/30 by M. Cannoni, J. D. Vergados, M. E. Gómez +1
Mathematics · Physics and Astronomy · #Atomic and Subatomic Physics Research #Cross section (physics) #Dark Matter and Cosmic Phenomena #Dark matter #Elastic scattering #Event (particle physics) #Factorization #Isospin #Mathematics #Momentum transfer #Neutralino #Neutron #Nuclear physics #Nucleon #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum mechanics #Scattering #Spin (aerodynamics) #WIMP #astro-ph.CO #hep-ph
paper · pdf · doi:10.1103/physrevd.83.075010
published as Phys.Rev.D83:075010,2011 · 8 pages, 4 figures. Title, text and references revised and expanded. Added an Appendix explaining the advantages of the normalized spin structure functions. Accepted in PRD
arxiv created 2011/04/01 · openalex publication_date 2011/04/13 · arxiv updated 2015/03/17 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We propose a scheme that allows to analytically determine the three elementary cross sections and connect the solutions to the relative sign between the proton and the neutron spin scattering amplitudes once the measurements of total event rate from three appropriate targets become available. In this way it is thus possible to extract the maximum information on the supersymmetric parameter space obtainable from direct detection experiments, in the case that the dark matter particle is the lightest neutralino. Our scheme is based on suitably normalized forms of the isospin momentum dependent structure functions entering in the spin-dependent elastic neutralino-nucleus cross section. We compare these functions with the commonly used ones and discuss their advantages: in particular, these allow in the spin-dependent cross section to factorize the particle physics degrees of freedom from the momentum transfer dependent nuclear structure functions as it happens in the spin-independent cross section with the nuclear form factor.