Speaker
Ruth Pöttgen
(Lund University)
Description
The origin and observed abundance of Dark Matter in the Universe can be explained
elegantly by the thermal freeze-out mechanism, leading to a preferred mass range of
the Dark Matter particles in the MeV-TeV region. The GeV-TeV mass range is being
explored intensely by the variety of experiments searching for Weakly Interacting
Massive Particles. The sub-GeV region, however, in which the masses of most of the
building blocks of stable matter lie, is hardly being tested experimentally to date.
This mass range occurs naturally in Hidden Sector Dark Matter models. The Light Dark
Matter eXperiment (LDMX) is a planned electron-beam fixed-target missing-momentum
experiment, that has unique potential to conclusively test models for such light Dark
Matter in the MeV to GeV range. This contribution will give an overview of the
theoretical motivation, the main experimental challenges and how they are addressed
as well as the projected sensitivities in comparison to other experiments.
Primary author
Ruth Pöttgen
(Lund University)
Co-authors
Caterina Doglioni
(Lund University)
Else Lytken
(Lund University)
Luis Sarmiento
(Lund University)
Torsten Åkesson
(Lund University)
Vincent Hedberg
(Lund University)
