Kavli Affiliate: Angela V. Olinto
| First 5 Authors: Mary Hall Reno, Luis A. Anchordoqui, Atri Bhattacharya, Austin Cummings, Johannes Eser
| Summary:
Recent theoretical work has explored dark matter accumulation in the Earth
and its drift towards the center of the Earth that, for the current age of the
Earth, does not necessarily result in a concentration of dark matter ($chi$)
in the Earth’s core. We consider a scenario of long-lived ($tau_chisim
10^{28}$ s), super heavy ($m_chi=10^7-10^{10}$ GeV) dark matter that decays
via $chito nu_tau H$ or $chito nu_mu H$. We show that an IceCube-like
detector over 10 years can constrain a dark matter density that mirrors the
Earth’s density or has a uniform density with density fraction $epsilon_rho$
combined with the partial decay width $B_{chito nu_tau H}Gamma_chi$ in
the range of $(epsilon_rho/10^{-10}) B_{chito nu_tau}Gamma_chi lesssim
3times 10^{-29}-3times 10^{-28}$ s$^{-1}$. For $chito nu_mu H$, $m_chi =
10^8-10^{10}$ GeV and $E_mu>10^7$ GeV, the range of constraints is
$(epsilon_rho/10^{-10}) B_{chito nu_mu}Gamma_chi lesssim 6times
10^{-29}-1.4times 10^{-27}$ s$^{-1}$.
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