Search for neutral weakly interacting massive particles in the Fermilab Tevatron wideband neutrino beam

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Abstract

A time-of-flight technique has been used to search for neutral weakly interacting massive particles in the wideband neutrino beam at the Fermilab Tevatron. Limits at the 90% confidence level are reported herein for (a) heavy neutrino production from the decay of heavy quark states, (b) massive objects directly produced in 800 GeV/c pN interactions that are noninteracting but unstable with a mean lifetime between ${10}^{\mathrm{\ensuremath{-}}8}$ and ${10}^{\mathrm{\ensuremath{-}}4}$ s, and (c) directly produced massive objects that are stable but weakly interacting with interaction cross sections between ${10}^{\mathrm{\ensuremath{-}}29}$ and ${10}^{\mathrm{\ensuremath{-}}31}$ ${\mathrm{cm}}^{2}$.

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