Dark Sectors at the Fermilab SeaQuest Experiment
Asher Berlin, Stefania Gori, Philip Schuster, Natalia Toro
TL;DR
The paper explores how the SeaQuest experiment at Fermilab can detect various dark sector particles through displaced decay signals, offering new sensitivity comparable to other experiments.
Contribution
It demonstrates the potential of SeaQuest to discover dark sector physics using existing and planned detector upgrades, highlighting its unique capabilities.
Findings
SeaQuest can detect GeV-scale dark vectors and scalars.
Upgraded calorimeter enhances sensitivity to dark Higgs bosons and axions.
SeaQuest's data collection complements other dark matter experiments.
Abstract
We analyze the unique capability of the existing SeaQuest experiment at Fermilab to discover well-motivated dark sector physics by measuring displaced electron, photon, and hadron decay signals behind a compact shield. A planned installation of a refurbished electromagnetic calorimeter could provide powerful new sensitivity to GeV-scale vectors, dark Higgs bosons, scalars, axions, and inelastic and strongly interacting dark matter models. This sensitivity is both comparable and complementary to NA62, SHiP, and FASER. SeaQuest's ability to collect data now and over the next few years provides an especially exciting opportunity.
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