非表示:
キーワード:
High Energy Physics - Phenomenology, hep-ph,High Energy Physics - Experiment, hep-ex
要旨:
The signals from outer space and their detection have been playing an
important role in particle physics, especially in discoveries of and searches
for physics beyond the Standard Model (BSM); beyond the evidence of dark matter
(DM), for example, the neutrinos produced from the dark matter annihilation is
important for the indirect DM searches. Moreover, a wide range of new,
well-motivated physics models and dark-sector scenarios have been proposed in
the last decade, predicting cosmogenic signals complementary to those in the
conventional direct detection of particle-like dark matter. Most notably,
various mechanisms to produce (semi-)relativistic DM particles in the present
universe (e.g. boosted dark matter) have been put forward, while being
consistent with current observational and experimental constraints on DM. The
resulting signals often have less intense and more energetic fluxes, to which
underground, kiloton-scale neutrino detectors can be readily sensitive. In
addition, the scattering of slow-moving DM can give rise to a sizable energy
deposit if the underlying dark-sector model allows for a large mass difference
between the initial and final state particles, and the neutrino experiments
with large volume detectors are well suited for exploring these opportunities.
This White Paper is devoted to discussing the scientific importance of the
cosmogenic dark matter and exotic particle searches, not only overviewing the
recent efforts in both the theory and the experiment communities but also
providing future perspectives and directions on this research branch. A
landscape of technologies used in neutrino detectors and their complementarity
is discussed, and the current and developing analysis strategies are outlined.
