Speaker
Dr
Mirco Cannoni
(Departamento de Fisica Aplicada, Facultad de Ciencias Experimentales, Universidad de Huelva, 21071 Huelva, Spain)
Description
Today a massive experimental effort is addressed towards the direct detection of weakly interacting massive particles (WIMP), that should form the dark matter halo of our galaxy, through elastic scattering with nuclei in underground detectors.
We discuss a suitably normalized form 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.
As an application 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.
Author
Dr
Mirco Cannoni
(Departamento de Fisica Aplicada, Facultad de Ciencias Experimentales, Universidad de Huelva, 21071 Huelva, Spain)
Co-authors
Prof.
Joannis D. Vergados
(Theoretical Physics Division, University of Ioannina, Ioannina, Gr 451 10, Greece)
Dr
Mario E. Gomez
(Departamento de Fisica Aplicada, Facultad de Ciencias Experimentales, Universidad de Huelva, 21071 Huelva, Spain)
