Friday, June 28, 2013

1306.6536 (Philippe Brax et al.)

Probing Strongly Coupled Chameleons with Slow Neutrons    [PDF]

Philippe Brax, Guillaume Pignol, Damien Roulier
We consider different methods to probe chameleons with slow neutrons. Chameleon modify the potential of bouncing neutrons over a flat mirror in the terrestrial gravitational field. This induces a shift in the energy levels of the neutrons which could be detected in current experiments like GRANIT. Chameleons between parallel plates have a field profile which is bubble-like and which would modify the phase of neutrons in interferometric experiments. We show that this new method of detection is competitive with the bouncing neutron one, hopefully providing an efficient probe of chameleons when strongly coupled to matter.
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