Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1994-06-23
Physics
High Energy Physics
High Energy Physics - Phenomenology
(Talk at Lake Louise Winter Institute, 1994) and PRAN NATH, Latex file, 7 figures avaliable upon request
Scientific paper
The sensitivity of dark matter detectors to the lightest neutralino (${\tilde {Z}_1}$) is considered within the framework of supergravity grand unification with radiative breaking of SU(2)xU(1). The relic density of the ${\tilde {Z}_1}$ is constrained to obey $0.10 \leq \Omega_{\tilde {Z}_1}h^2 \leq 0.35$, consistent with COBE data and current measurements of the Hubble constant. Detectors can be divided into two classes: those most sensitive to spin dependent incoherent scattering of the ${\tilde {Z}_1}$ (e.g. $CaF_2$) and those most sensitive to spin independent coherent scattering (high A nuclei e.g. Pb). The parameter space is studied over the range of $100GeV \leq m_0, m_{\tilde {g}} \leq 1 TeV; 2 \leq tan\beta \leq 20$; and $-2 \leq A_t/m_0 \leq 3$ and it is found that the latter type detector is generally more sensitive than the former type. Thus at a sensitivity level of $R \geq 0.1$ events/kg da, a lead detector could scan roughtly 30% of the ~parameter space studied, and an increase of ~this sensitivity by a factor of 10 ~would lead to coverage of about 70% of the parameter space. Dark matter detectors are in general more sensitive to the high $tan\beta$, low $m_{\tilde {g}}$ and low m_0 parts of the parameter space. The conditions of radiative breaking of SU(2)xU(1) enter importantly in analysing the efficiency of dark matter detectors.
No associations
LandOfFree
Sensitivity Of Dark Matter Dectectors To Susy Dark Matter does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Sensitivity Of Dark Matter Dectectors To Susy Dark Matter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sensitivity Of Dark Matter Dectectors To Susy Dark Matter will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-673332