Kavli Affiliate: Peter Graham
| First 5 Authors: Jim Alexander, Vassilis Anastassopoulos, Gigor Atoian, Rick Baartman, Stefan Baeßler
| Summary:
The Proton EDM Experiment (pEDM) is the first direct search for the proton
electric dipole moment (EDM) with the aim of being the first experiment to
probe the Standard Model (SM) prediction of any particle EDM. Phase-I of pEDM
will achieve $10^{-29} ecdot$cm, improving current indirect limits by four
orders of magnitude. This will establish a new standard of precision in nucleon
EDM searches and offer a unique sensitivity to better understand the Strong CP
problem. The experiment is ideally positioned to explore physics beyond the
Standard Model (BSM), with sensitivity to axionic dark matter via the signal of
an oscillating proton EDM and across a wide mass range of BSM models from
$mathcal{O}(1text{GeV})$ to $mathcal{O}(10^3text{TeV})$. Utilizing the
frozen-spin technique in a highly symmetric storage ring that leverages
existing infrastructure at Brookhaven National Laboratory (BNL), pEDM builds
upon the technological foundation and experimental expertise of the highly
successful Muon $g$$-$$2$ Experiments. With significant R&D and prototyping
already underway, pEDM is preparing a conceptual design report (CDR) to offer a
cost-effective, high-impact path to discovering new sources of CP violation and
advancing our understanding of fundamental physics. It will play a vital role
in complementing the physics goals of the next-generation collider while
simultaneously contributing to sustaining particle physics research and
training early career researchers during gaps between major collider
operations.
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