New Electron Beam-Dump Experiments to Search for MeV to few-GeV Dark Matter
By E. Izaguirre, G. Krnjaic, P. Schuster, N. Toro. 2013
138 citations recorded by the source corpus.
In a broad class of consistent models, MeV to few-GeV dark matter interacts with ordinary matter through weakly coupled GeV-scale mediators. We show that a suitable meter-scale (or smaller) detector situated downstream of an electron beam-dump can sensitively probe dark matter interacting via sub-GeV mediators, while B-factory searches cover the 1-5 GeV range. Combined, such experiments explore a well-motivated and otherwise inaccessible region of dark matter parameter space with sensitivity several orders of magnitude beyond existing direct detection constraints. These experiments would also probe invisibly decaying new gauge bosons ("dark photons") down to kinetic mixing of \epsilon ~ 10^{-4}, including the range of parameters relevant for explaining the (g-2)_{\mu} discrepancy. Sensitivity to other long-lived dark sector states and to new milli-charge particles would also be improved.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/e99dee4f59d72404fb180d5d264cb717557bad37
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In Nuclear and High Energy Physics
Citations in the corpus
- Revised constraints and Belle II sensitivity for visible and invisible axion-like particles (2017, background): “Several previous studies have investigated the potential of Belle II to search for invisible Dark Photon decays [39, 40, 43], which will significantly extend the range of earlier searches at BaBar [44–46].”
- Direct detection of sub-GeV dark matter with semiconductor targets (2015, background): “Among these, we only show the strongest constraints, which are a BaBar search for e+e− → γ + invisible [49, 51, 52] as well as electroweak precision tests (EWPT) [77, 78]; however, to guide the eye, we also show the “favored” 2σ-region for which the A′ can explain the discrepancy between the measure”
- Dark matter, millicharges, axion and scalar particles, gauge bosons, and other new physics with LDMX (2018, background): “Also shown in dot-dashed purple is the projected reach of the beam dump experiment BDX [83, 105].”
- SIMP spectroscopy (2015, background): “Note that Υ(3S)→ γV is forbidden by charge conjugation invariance, but the limit can be re-interpreted as that on the continuum production e+e− → γV followed by V → invisible [28, 29].”
- A facility to search for hidden particles at the CERN SPS: the SHiP physics case (2015, background): “This scattering process, as well as scattering on nucleons and nuclei, can be viewed as the search channels for light dark matter [157, 161, 162].”
- Revisiting Supernova 1987A constraints on dark photons (2016, background): “We leave to future work the possibility that there are additional stable, low-mass dark-sector scalars or fermions with U(1)′ charge [8] (see also [9–11]).”