Proposal for a Cosmic Axion Spin Precession Experiment (CASPEr)

@article{Budker2013ProposalFA,
  title={Proposal for a Cosmic Axion Spin Precession Experiment (CASPEr)},
  author={Dmitry Budker and Peter W. Graham and Micah P. Ledbetter and Surjeet Rajendran and Alexander O. Sushkov},
  journal={Physical Review X},
  year={2013},
  volume={4},
  pages={021030}
}
We propose an experiment to search for QCD axion and axionlike-particle dark matter. Nuclei that are interacting with the background axion dark matter acquire time-varying C P -odd nuclear moments such as an electric dipole moment. In analogy with nuclear magnetic resonance, these moments cause precession of nuclear spins in a material sample in the presence of an electric field. Precision magnetometry can be used to search for such precession. An initial phase of this experiment could cover… 

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References

SHOWING 1-10 OF 81 REFERENCES

New Observables for Direct Detection of Axion Dark Matter

We propose new signals for the direct detection of ultralight dark matter such as the axion. Axion or axionlike particle dark matter may be thought of as a background, classical field. We consider

Axion dark matter detection with cold molecules

Current techniques cannot detect axion dark matter over much of its parameter space, particularly in the theoretically well-motivated region where the axion decay constant f_a lies near the GUT and

Prospects for searching axionlike particle dark matter with dipole, toroidal, and wiggler magnets

In this work, we consider searches for dark matter made of axions or axionlike particles using resonant radio frequency cavities inserted into dipole magnets from particle accelerators, wiggler

Detecting domain walls of axionlike models using terrestrial experiments.

This work takes an example of domain walls generated by an axionlike field with a coupling to the spins of standard-model particles and shows that, if the galactic environment contains a network of such walls, terrestrial experiments aimed at the detection of wall-crossing events are realistic.

Searching for axions and ALPs from string theory

We review searches for closed string axions and axion–like particles (ALPs) in IIB string flux compactifications. For natural values of the background fluxes and TeV scale gravitino mass, the moduli

String Axiverse

String theory suggests the simultaneous presence of many ultralight axions, possibly populating each decade of mass down to the Hubble scale 10−33eV. Conversely the presence of such a plenitude of

First Results of the Full-Scale OSQAR Photon Regeneration Experiment

Recent intensive theoretical and experimental studies shed light on possible new physics beyond the standard model of particle physics, which can be probed with sub-eV energy experiments. In the

Displaced Supersymmetry

A bstractThe apparent absence of light superpartners at the LHC strongly constrains the viability of the MSSM as a solution to the hierarchy problem. These constraints can be significantly alleviated

The Low-Energy Frontier of Particle Physics

Most embeddings of the Standard Model into a more unified theory, in particular those based on supergravity or superstrings, predict the existence of a hidden sector of particles that have only very

Dark matter results from 225 live days of XENON100 data.

A search for particle dark matter with the XENON100 experiment, operated at the Laboratori Nazionali del Gran Sasso for 13 months during 2011 and 2012, has yielded no evidence for dark matter interactions.
...