title: Tuning the mass of chameleon fields in Casimir force experiments.
abstract: We have calculated the chameleon pressure between two parallel plates in the presence of an intervening medium that affects the mass of the chameleon field. As intuitively expected, the gas in the gap weakens the chameleon interaction mechanism with a screening effect that increases with the plate separation and with the density of the intervening medium. This phenomenon might open up new directions in the search of chameleon particles with future long-range Casimir force experiments.
authors.affiliation: Institut de Physique Théorique, CEA, IPhT, CNRS, URA 2306, F-91191Gif/Yvette Cedex, France. philippe.brax@cea.fr
authors.forename: Ph
authors.initials: P
authors.lastname: Brax
authors.forename: C
authors.initials: C
authors.lastname: van de Bruck
authors.forename: A C
authors.initials: AC
authors.lastname: Davis
authors.forename: D J
authors.initials: DJ
authors.lastname: Shaw
authors.forename: D
authors.initials: D
authors.lastname: Iannuzzi