Scheme for the extraction of WIMP-nucleon scattering cross sections from total event rates

Journal Article · Fri Apr 01 00:00:00 EDT 2011 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.83.075010· OSTI ID:21537746

Cannoni, M; Gomez, M E ^[1]; Vergados, J D ^[2]

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1. Departamento de Fisica Aplicada, Facultad de Ciencias Experimentales, Universidad de Huelva, 21071 Huelva (Spain)
2. Theoretical Physics Division, University of Ioannina, Ioannina, Gr 451 10 (Greece)

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.

• OSTI ID: 21537746
• Journal Information: Physical Review. D, Particles Fields, Vol. 83, Issue 7; Other Information: DOI: 10.1103/PhysRevD.83.075010; (c) 2011 American Institute of Physics; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COMPARATIVE EVALUATIONS
CROSS SECTIONS
DEGREES OF FREEDOM
DETECTION
EXTRACTION
FORM FACTORS
ISOSPIN
MOMENTUM TRANSFER
NEUTRAL PARTICLES
NEUTRONS
NONLUMINOUS MATTER
NUCLEAR STRUCTURE
NUCLEI
PROTONS
SCATTERING AMPLITUDES
SPIN
STRUCTURE FUNCTIONS
SUPERSYMMETRY
WEAK INTERACTIONS
AMPLITUDES
ANGULAR MOMENTUM
BARYONS
BASIC INTERACTIONS
DIMENSIONLESS NUMBERS
ELEMENTARY PARTICLES
EVALUATION
FERMIONS
FUNCTIONS
HADRONS
INTERACTIONS
MATTER
NUCLEONS
PARTICLE PROPERTIES
SEPARATION PROCESSES
SYMMETRY