Scattering of weakly interacting massive particles from [sup 73]Ge

Journal Article · Sun Jan 15 04:00:00 EST 1995 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.51.R291· OSTI ID:6643483

Dimitrov, V I ^[1]; Engel, J ^[2]; Pittel, S ^[3]

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1. Faculty of Physics, Sofia University, 1126 Sofia (Bulgaria) Bartol Research Institute, University of Delaware, Newark, Delaware 19716 (United States)
2. Department of Physics and Astronomy, CB3255, University of North Carolina, Chapel Hill, North Carolina 27599 (United States)
3. Bartol Research Institute, University of Delaware, Newark, Delaware 19716 (United States)

We use a hybrid'' method, mixing variationally determined triaxial nuclear Slater determinants, to calculate the response of [sup 73]Ge to hypothetical dark-matter particles such as neutralinos. The method is a hybrid in that rotational invariance is approximately restored prior to variation and then fully restored before the mixing of intrinsic states. We discuss such features of [sup 73]Ge as shape coexistence and triaxiality, and their effects on spin-dependent neutralino cross sections. Our calculations yield a satisfactory quadrupole moment and an accurate magnetic moment in this very complicated nucleus, suggesting that the spin structure and thus the axial-vector response to dark-matter particles is modeled well.

• DOE Contract Number: FG02-84ER45082
• OSTI ID: 6643483
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 51:2; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

662440* -- Properties of Other Particles Including Hypothetical Particles-- (1992-)
663120 -- Nuclear Structure Models & Methods-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CROSS SECTIONS
GERMANIUM 73 TARGET
HYBRIDIZATION
INVARIANCE PRINCIPLES
MAGNETIC MOMENTS
MIXING
PARTICLES
QUADRUPOLE MOMENTS
ROTATIONAL INVARIANCE
SCATTERING
TARGETS