Microscopic calculation of the LSP detection rates for the 71Ga, 73Ge and 127I dark-matter detectors

• Published in: Physics letters. B Vol. 584; no. 1-2; pp. 31 - 39
• Main Authors: Holmlund, E., Kortelainen, M., Kosmas, T.S., Suhonen, J., Toivanen, J.
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 25.03.2004; Elsevier Science
• Subjects: Cold dark matter; Decays of leptons; Decays of muons; Exact sciences and technology; LSP detection rates; Nuclear physics; Physics; Quasiparticle–Phonon Model; Radioactive decay and in-beam spectroscopy; Specific reactions and phenomenology; The physics of elementary particles and fields; Transition matrix elements; Weak-interaction and lepton (including neutrino) aspects; β decay; double β decay; electron and muon capture; 23.40.Bw; Cold dark matter; LSP detection rates; Quasiparticle–Phonon Model; 13.35.Bv; Transition matrix elements; 12.60.Cn; 21.60.Jz; Diagonalization; Nuclear structure; Even-odd nuclei; Supersymmetric field theory; Elastic scattering; Phonons; Microscopic model; Transition matrix; Quasiparticles; Hamiltonians; Sparticles; Cross sections
• ISSN: 0370-2693; 1873-2445
• DOI: 10.1016/j.physletb.2004.01.045

We have investigated the nuclear-structure details of the cross sections for the elastic scattering of Lightest Supersymmetric Particles (LSPs) from the promising dark-matter detectors 71Ga, 73Ge and 127I. The associated LSP detection sensitivities have been obtained by a folding procedure for several recently proposed SUSY models with different scalar and axial-vector characteristics. For the nuclear problem, a realistic microscopic Hamiltonian has been used within realistic model spaces. The diagonalization of this Hamiltonian has been done by using the Microscopic Quasiparticle–Phonon Model (MQPM), suitable for description of spectroscopic properties of medium-heavy and heavy odd–even nuclei. The formalism has been designed to incorporate in a trivial fashion parameter sets of any other SUSY-model scenarios.