3-10 August 2016
Chicago IL USA
US/Central timezone
There is a live webcast for this event.

Indirect detection of Dark Matter with JUNO

Aug 8, 2016, 6:30 PM
2h
Riverwalk A/B

Riverwalk A/B

Poster Dark Matter Detection Poster Session

Speaker

Suprabh Prakash (Sun Yat-Sen University, Guangzhou)

Description

The existence of non-baryonic Dark Matter (DM) has been very well established by various astronomical observations; and finding out a viable DM candidate is one of the most important open-ended problems in beyond Standard Model physics today. The Jiangmen Underground Neutrino Observatory (JUNO) is a 20 kton multi-purpose underground liquid scintillator detector with the main objective to determine the neutrino mass hierarchy. It will also provide opportunities to study other important topics in neutrino and astro-particle physics. Here, we try to explore the capabilities of JUNO towards indirect detection of DM. We consider the neutrino flux resulting from DM annihilation inside the Sun. As a benchmark, we consider the channels $\chi\chi\rightarrow\tau^{+}\tau^{-}$ and $\chi\chi\rightarrow\nu\bar\nu$. The sensitivities are calculated based on the excess of neutrino events beyond the atmospheric background. Only the muon events with track lengths greater than 5 m within the detector have been considered. For such events, the direction of muon tracks can be reconstructed with an accuracy better than $1^\circ$. To search for DM induced neutrino events from the Sun, we choose and observation cone with a cone half angle $\psi = 30^{\circ}$. We have found that JUNO sensitivity to spin-dependent scattering cross-section $\sigma^{SD}_{\chi p}$ is much better than the current direct detection constraints. In the case of spin-independent $\sigma^{SI}_{\chi p}$, JUNO is competitive with direct detection experiments for $m_{\chi}<7~\textrm{GeV}$.

Primary author

Suprabh Prakash (Sun Yat-Sen University, Guangzhou)

Presentation materials

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